CN102510074B - Cooling and power dispatching system and dispatching method of back-pressure type combined heat and power generation unit - Google Patents

Abstract

A cooling and electricity dispatching system for adjusting power supply and cold water, including a cogeneration unit, a centralized heat absorption refrigerator installed at a hot water outlet, an air conditioner, an electric energy meter, a fan coil unit, a cold water meter, and collecting the electric energy The first and second remote centralized controllers of the electricity consumption data detected by the meter and the cold water consumption data detected by the cold water meter control the dispatching control of the operation of the unit, air conditioner and fan coil unit through the first and second remote centralized controllers device. The present invention collects the pipeline distance from the user to the unit, and uses the pipeline distance to reasonably schedule the power supply output and cold water output of the unit to level the power load, achieve the effect of "shaving peaks and filling valleys", avoiding waste of fuel resources, At the same time, it makes the scheduling more timely and accurate.

Description

Cold electric dispatching patcher and the dispatching method of back pressure type cogeneration units

Technical field

The present invention relates to city integrated energy supply system, relate in particular to a kind of utilization the scheduling of refrigeration duty is realized the method for electric power system optimization control.

Background technology

Due to the adjustment of China's expanding economy and the industrial structure, the electric power peak-valley difference that electric power system exists is at increase year after year.Electric power peak-valley difference widens and makes power equipment on average utilize hourage to decline, and generating efficiency declines, and economic benefit reduces, and electric power netting safe running is subject to grave danger.Now peak load regulation network mainly adopts pure condensate formula fired power generating unit, but is characterized in: off-capacity, energy consumption are huge, less economical; And online group of extraction condensing type thermoelectricity is by relevant regulation, moves in " electricity determining by heat " mode, causes electric load low ebb phase energy output surplus, and electric load peak period energy output deficiency.Fig. 1 is electric load curve.

The heating hot water of back pressure type cogeneration units output, due to the restriction of fed distance and flow rate of hot water, sends to user and has certain distance, and the electric power of output can arrive user moment; In prior art, not according to the distance between back pressure type cogeneration units and user, rationally back pressure type cogeneration units is carried out the system and method for scheduling controlling, make scheduling more in time, accurately, the energy avoids waste.

Summary of the invention

The object of the invention is to set up a kind of unit combined dispatching system and electric load levelized dispatching method thereof to user's refrigeration, the hot water of unit output is become to cold water to be offered user and freezes, in the time that needs reduce current supply, use the energy output of unit, freeze by air-conditioning, supplement the refrigeration deficiency causing owing to reducing current supply, thereby filled up low power consumption.Make this system according to the distance between back pressure type cogeneration units and user, rationally energy output and the cool water quantity to back pressure type cogeneration units, and the power consumption of air conditioner user and refrigerating capacity are controlled, the energy consumption while being adjusted in peak of power consumption and low ebb.

To achieve these goals, the present invention adopts following technical scheme:

To a unit combined dispatching system for user's refrigeration, comprising: supply side equipment, detection and control appliance and multiple user side equipment; Supply side equipment comprises: for generating electricity and the back pressure type cogeneration units of hot water and the centralized heat absorption formula refrigeration machine that hot water exit installs being provided; Each user side equipment comprises: the power-actuated refrigerating plant being sent by above-mentioned unit; Fan coil, provides cold water cooling by above-mentioned refrigeration machine; Non-refrigeration power consumer apparatus; Detection and control appliance comprise: long-distance centralized control device, gathers the following data in a period of time: the cold water of described unit goes out strength and generated output electric weight; Power consumption total amount; The energy consumption of cold water; Each user and thermal source are the distance between above-mentioned unit; Integrated dispatch control device, according to above-mentioned distance, calculates next period owing to reducing the amount of the cold feed deficiency in the fan coil that causes of cold feed, and this under-supply amount is supplemented with the refrigerating capacity of described refrigerating plant, i.e. refrigerating plant power consumption is freezed; Calculate thus the power load power consumption total amount of next period including refrigerating plant, it is asked to standard deviation, poor hour when this, reach the levelized of power load, obtain output electric energy, cold water energy control signal and refrigerating plant power consumption control signal and the refrigerating capacity signal of unit; Long-distance centralized control device is according to the output electric energy of unit, cold water energy control signal, control unit cold go out strength and generated output electric weight; And control respectively refrigerating plant refrigerating capacity and close fan coil amount according to refrigerating plant power consumption control signal and refrigerating capacity signal.

Described refrigerating plant is air-conditioning.

Described long-distance centralized control device comprises the first long-range control centralized system device and the second long-range control centralized system device, and the first long-distance centralized control device gathers the information of supply side equipment, and the second long-distance centralized control device gathers the information of user side equipment.

Described detection and control appliance also comprise: the ammeter that detects described power consumer apparatus power consumption; Control the remote control switch of the refrigerating capacity of described refrigerating plant; The consumption gauge table of the data that consume for detection of described fan coil cold water; Control the flowing water valve remote control switch of fan coil; The control final controlling element of unit.

Described integrated dispatch control device comprises: receive the non-refrigeration power consumption of user data, user's cold water consumption data, user pipe range information, the cold water flow of back pressure type cogeneration units, the first data receiver unit of generated output electric weight; By the data decoder unit of all decoding datas that receive; The data memory unit that decoded all data are stored; Generate the scheduling control signal computing unit of scheduling control signal; The signal coder that described scheduling control signal is encoded; And the scheduling control signal after coding is passed to the transmitting element of the first long-distance centralized control device, the second long-distance centralized control device.

The control final controlling element of described unit comprises scheduling control signal transmitting-receiving coded stack, drive circuit and control device, described scheduling control signal generates the instruction of back pressure type cogeneration units scheduling controlling after the decoding of scheduling control signal transmitting-receiving coded stack, through the signal trigger control device of overdrive circuit output, control device is controlled the valve event of back pressure cogeneration units again.

Integrated dispatch control device is connected with cloud computing calculation services system by power optical fiber, and the data that gather are carried out to cloud computing.

The second long-distance centralized control device comprises the air-conditioning ammeter pulse counter, cold water flow pulse counter, the coded stack that connect successively, and interconnective control signal Rcv decoder and remote control signal generator.

Also propose a kind of dispatch control method for above-mentioned dispatching patcher, unit has been carried out to reasonably scheduling controlling.

Now for prior art, beneficial effect of the present invention is: rationally the power supply of cogeneration units is exerted oneself and exerted oneself and dispatch with cold water, make electric load levelized, reached the effect of " peak load shifting ", the fuel source that avoids waste makes scheduling more in time, accurately simultaneously.

Accompanying drawing explanation

Fig. 1 is electric load curve figure;

Fig. 2 is combined heat and power dispatching patcher circuit diagram of the present invention;

Fig. 3 is the composition diagram of the second long-distance centralized control device;

Fig. 4 is the composition diagram of back pressure type cogeneration units control final controlling element 118;

Fig. 5 is the composition diagram of integrated dispatch control device 115;

Fig. 6 is the connection layout of cloud computing calculation services system 917;

Fig. 7 is load curve and the primitive curve comparison diagram after levelized;

Embodiment

Below in conjunction with accompanying drawing explanation the specific embodiment of the present invention.

Please refer to shown in Fig. 2, a kind of combined heat and power dispatching patcher of the present invention comprises: supply side equipment, detection and control appliance and user side equipment.

Supply side equipment comprises: the centralized heat absorption formula refrigeration machine of installing for back pressure type cogeneration units A and the hot water exit of output electric power and hot water, and this unit, in the time that it reduces hot water supply, is merely able to reduce energy output;

User side equipment comprises:

By power cable 113 air conditioner 108 in parallel with described back pressure type cogeneration units A, the electric energy that described air conditioner 108 is produced by described back pressure type cogeneration units A drives and freezes; And the non-refrigeration power consumer apparatus (not drawing in accompanying drawing 2) of being powered by back pressure type cogeneration units A;

By pipeline 114 and the fan coil 110 that described back pressure type cogeneration units A is connected, provide cold water cooling by above-mentioned unit;

Detection and control appliance comprise:

Electric energy meter 109, for detection of power consumption data;

Control the air conditioner remote control switch 117 of air conditioner 108;

Fan coil current consume gauge table 111, the data that consume for detection of described fan coil 110 current;

Control the flowing water valve remote control switch 116 of fan coil 110;

The first long-distance centralized control device 1121, gathers the fuel input amount of back pressure type cogeneration units A, steam inlet amount, cold go out strength and generated output electric weight; And by the fuel input amount of the back pressure type cogeneration units A gathering, steam inlet amount, freezes and strength, generated output electric weight sends integrated dispatch control device 115 to;

The second long-distance centralized control device 1122, gathers the power consumption data that the special electric energy meter 109 of described air conditioner detects; Record the pipeline range information between fan coil 110 and back pressure type cogeneration units A; Gather fan coil current and consume the current consumption data that gauge table 111 detects; And then send the pipeline range information of the power consumption data of air conditioner, fan coil 110, current consumption data to integrated dispatch control device 115;

Integrated dispatch control device 115, by pipeline range information, user's non-refrigeration electricity consumption data and user's the current consumption data of the generated output electric weight of the cold water flow of back pressure type cogeneration units A, back pressure type cogeneration units A, user's fan coil 110, generate scheduling control signal;

The first long-distance centralized control device 1121 receives the scheduling control signal that integrated dispatch control device 115 sends, and moves with the back pressure type cogeneration units control final controlling element 118 of this scheduling control signal control back pressure type cogeneration units A;

The second long-distance centralized control device 1122 receives the scheduling control signal that integrated dispatch control device 115 sends, and drives respectively air conditioner remote control switch 117, fan coil flowing water valve remote control switch 116 to carry out switching on and shutting down actions by this scheduling control signal;

The centralized heat absorption formula refrigeration machine (not drawing in accompanying drawing 2) of installing at the hot water outlet place of unit A, will deliver to fan coil 110 for refrigeration after water-heating cooling.

Please refer to Fig. 2, described electric energy meter 109 is coupled with described air conditioner 108; Air conditioner remote control switch 117 connects air conditioner 108, for controlling the switch of air conditioner 108.Electric energy meter 109 is connected separately with air conditioner 108 by wire, the power consumption data of freezing for detection of described air conditioner 108.Described current consume gauge table 111, are coupled, for detection of the refrigeration power consumption data of institute's fan coil 110 with described fan coil 110.6. described fan coil 110 is provided with controlled valve.

The second long-distance centralized control device 1122, the power consumption data that the special electric energy meter 109 of collection air conditioner detects also send integrated dispatch control device 115 to; Gather fan coil current and consume the current consumption data that gauge table 111 detects, and record pipeline range information between this fan coil 110 and back pressure type cogeneration units A, and then send cold water consumption data and pipeline range information to integrated dispatch control device 115.

Please refer to shown in Fig. 3, the second long-distance centralized control device 1122 comprises air-conditioning ammeter pulse counter, non-refrigeration ammeter pulse counter (not shown), discharge pulse counter, pulse-code transducer, metering signal amplifying emission device, control signal Rcv decoder and control signal remote control transmitter; Air-conditioning ammeter pulse counter connects the special electric energy meter 109 of air conditioner, the power consumption data that detect for detection of the special electric energy meter 109 of air conditioner, air-conditioning ammeter pulse counter detects after the power consumption data pulse signal coded conversion device that obtains and metering signal amplifying emission device are processed and is sent to integrated dispatch control device 115;

Non-refrigeration ammeter pulse counter connects the non-refrigeration ammeter of user, for detection of the non-refrigeration power consumption of user data (, user's power consumption data except air conditioner refrigerating power consumption), the non-refrigeration power consumption of user data are sent to integrated dispatch control device 115 after pulse-code transducer and the processing of metering signal amplifying emission device;

Discharge pulse counter connects current and consumes gauge table 111, consume the data on flows of gauge table 111 for detection of current, the pipeline range information of data on flows after pulse-code transducer and the processing of metering signal amplifying emission device and between fan coil 110 and back pressure type cogeneration units A is sent to integrated dispatch control device 115;

Control signal Rcv decoder, the scheduling control information that reception integrated dispatch control device 115 sends is also decoded, and then sends to air conditioner remote control switch 117, flowing water valve remote control switch 116 to perform an action control signal by control signal remote control transmitter.

Please refer to shown in Fig. 4, unit control final controlling element 118 comprises scheduling control signal transmitting-receiving coded stack 302, drive circuit 303 and control device 304, described scheduling control signal generates machine unit scheduling control command after 302 decodings of scheduling control signal transmitting-receiving coded stack, the moving signal trigger control device 304 of exporting through overdrive circuit 303, control device 304 is controlled the valve event of back pressure type cogeneration units A again.

Please refer to Fig. 5, integrated dispatch control device 115 comprises:

Receive the non-refrigeration power consumption of user data, user's current consumption data, user pipe range information, the cold water flow of back pressure type cogeneration units A, generated output electric weight the first data receiver unit 201 of unit A; By the data decoder unit 202 of all decoding datas that receive; The data memory unit 203 that decoded all data are stored; Generate the scheduling control signal computing unit 204 of scheduling control signal; The signal coder 205 that described scheduling control signal is encoded; And the scheduling control signal after coding is passed to the transmitting element 206 of the first long-distance centralized control device 1121, the second long-distance centralized control device 1122.

Please refer to Fig. 6, integrated dispatch control device 115 is connected with cloud computing calculation services system 917 by power optical fiber 120, and drives cloud computing calculation services system 917 to calculate, to obtain scheduling control signal; Integrated dispatch control device 115 receives cloud computing calculation services system 917 by power optical fiber 120 and calculates the scheduling control signal obtaining, and then issues this scheduling control signal to the first long-distance centralized control device, the second long-distance centralized control device via power cable or wireless transmission method.

The dispatching method of combined dispatching system of the present invention comprises the following steps:

2 research steps

I. measure

(1) measure supply side: back pressure type cogeneration units generated output P _cHPand the cold H that exerts oneself (t) _cHP(t);

(2) measure user's side: (i=0～N);

A) 0～N user apart from the pipeline of unit apart from S _i;

Take Δ T as the sampling period, gather following data in 0～T time period:

B) the power consumption power P of day part before 0～N user _i(t);

C) the cold water consumed power H of day part before 0～N user _i(t);

D) installed capacity of the air-conditioning of day part before 0～N user

Ii. calculate

(1) calculate the total power consumption of all users

(2) according to the day part total electricity consumption P calculating in (1) _sumand the H gathering in step I (t) _cHP(t), P _cHP(t), utilize known SPSS (Statistical Product and Service Solutions) statistical analysis technique or Multiple regression statistics analytical method, predict future a period of time, as: the electric load P of T～2T _load(t), the unit generation P that exerts oneself _cHPand the cold H that exerts oneself (t) _cHP(t);

(3) user grouping: calculate the equivalent distances of each user to unit

by identical s _iuser be divided into same group, count l group, l=s _i, add up to L group, L is natural number, v be current at ducted flow velocity, Δ T is to be the above-mentioned sampling period unit adjusting time;

(4) to the L group of getting in (3), obtain respectively:

H _load(l)=∑ H _i(t, l); H _i(t, l) is the cold water consumed power of the 1st group of user i in the t moment;

it is the installed capacity of the air-conditioning of the 1st group of user i;

Iii. control and calculate

(1) target function

$\mathrm{\Δp}=\sqrt{\frac{\underset{t=T}{\overset{2T}{\mathrm{\Σ}}}{(p_{\mathrm{load}}\left(t\right)-{\stackrel{\‾}{p}}_{\mathrm{load}})}^2}{T+1}}---\left(15\right)$

Wherein the equivalent load after levelized is defined as follows:

p _load(t)＝P _load(t)-(p _CHP(t)-P _CHP)+p _EHPs(t) (16)

Wherein, p _load(t) be the equivalent power load power after regulating, p _cHP(t) be unit generation power after regulating, p _eHPs(t) all user's power consumptions while being t;

Equivalence electric load mean value, is defined as follows:

${\stackrel{\‾}{p}}_{\mathrm{load}}=\frac{\underset{t=T}{\overset{2T}{\mathrm{\Σ}}}{p}_{\mathrm{load}}\left(t\right)}{T+1}---\left(17\right)$

(2) constraint equation

A) heat load balance equation

It is the core of method that air conditioning electricity refrigeration replaces unit cold water cooling quantity not sufficient, the not enough power if Δ h (t) expression t period cogeneration of heat and power is freezed, and, its expression formula is:

Δh(t)＝|H _CHP(t)-h _CHP(t)| (18)

Wherein, h _cHP(t) be regulate after unit cold go out activity of force, H _cHP(t) be the predicted value in step I i;

When t, unit current undersupply is organized and is used refrigerating plant electricity consumption refrigeration to obtain by each user, and due to the time delay of current transmission, the impact of current deficiency also exists time delay, and this time delay is along with user organizes the variation of distance and changes; For example, approximate 0,1 according to above all users being divided into .., l, .., L user's group, for the 1st user's group, the time that current flow to it is a unit scheduling duration, so current deficiency also will have influence on the 1st user's group in the t+1 period, in like manner, current deficiency will have influence on l user's group at t+l; Eventually the above, t period unit current undersupply will be compensated by electricity consumption in t～t+L period respectively by the refrigerating plant of 0～L user group.Concrete formula is:

$\mathrm{\Δh}\left(t\right)=\underset{l=0}{\overset{L}{\mathrm{\Σ}}}{h}_{\mathrm{EHP}}(t+l,l)$ (t+l≤T)

(19)

H _eHP(t+l, l) is the refrigeration work consumption sum of t+l moment l group user air-conditioning; h _eHP(t, l) is the refrigeration work consumption sum of t moment l group user air-conditioning;

If h in formula _eHP(t, l) can get 0, and on the one hand, some period, not all user's group all participated in compensation; On the other hand, if exceeded the total activation time of regulation, current undersupply does not have influence on the user's group in far-end yet, and these user's groups also will not participate in compensation so;

B) back pressure type thermoelectricity Unit commitment:

Generated output lower limit:

$p_{\mathrm{CHP}}^{\min }\left(t\right)=90\%\·P_{\mathrm{CHP}}---\left(20\right)$

The generated output upper limit:

$p_{\mathrm{CHP}}^{\max }\left(t\right)=P_{\mathrm{CHP}}---\left(21\right)$

Generated output restriction:

$p_{\mathrm{CHP}}^{\min }\left(t\right)<p_{\mathrm{CHP}}\left(t\right)\&le;p_{\mathrm{CHP}}^{\max }\left(t\right)---\left(22\right)$

Cogeneration of heat and power thermoelectricity is than retraining:

h _CHP(t)＝RDB·P _CHP(t) (23)

${\mathrm{\&eta;}}_{\mathrm{CHP}}^B\left(t\right)=\frac{h_{\mathrm{CHP}}\left(t\right)+p_{\mathrm{CHP}}\left(t\right)}{f_{\mathrm{CHP}}^B\left(t\right)}---\left(24\right)$

Wherein, RDB is back pressure type cogeneration units thermoelectricity ratio,

back pressure type cogeneration units efficiency,

t moment cogeneration units power energy consumption, P _cHPthe rated power of unit.Thus, calculating cogeneration units power total energy consumption is:

$f_{\mathrm{CHP}}^B=\underset{t=T+1}{\overset{2T}{\mathrm{\&Sigma;}}}{\mathrm{\&eta;}}_{\mathrm{CHP}}^B\left(t\right)\&CenterDot;(h_{\mathrm{CHP}}\left(t\right)+p_{\mathrm{CHP}}\left(t\right))---\left(25\right)$

C) user's side air-conditioning constraint

Thermoelectricity is than retraining:

h _EHP(t，l)＝COP·p _EHP(t，l) (26)

The air-conditioning upper limit of exerting oneself:

0≤p _EHP(t，l)≤min(P _EHP(l)，H _load(l)/COP) (27)

Wherein, COP distributing air-conditioning thermoelectricity compares coefficient;

Last air-conditioning power consumption refrigeration both can compensate the deficiency of cold water cooling, and therefore the load of the low-valley interval that also can increase electric power, need to obtain the refrigeration power consumption sum of all user's groups of day part:

$p_{\mathrm{EHPs}}\left(t\right)=\underset{l=0}{\overset{L}{\mathrm{\&Sigma;}}}{p}_{\mathrm{EHP}}(t,l)---\left(28\right)$

Wherein p _eHPthe power consumption of l group user air-conditioning when (t, l) is t;

By the P predicting in step I i _cHP(t), H _cHP(t); In step I i, calculate variable P _load(t), H _load(l), P _eHP(l) in substitution formula (1)～(13) and combine and solve, in the time that target function Δ p is minimum value, try to achieve optimize after the gained performance variable unit generation p that exerts oneself _cHP(t), the cold h that exerts oneself _cHP(t), not air-conditioning power consumption p in the same time of user _eHP(t, l) and refrigerating capacity h _eHP(t, l);

Iv. sending control signals to supply and user performs an action

According to gained performance variable after the optimization of iii, variable signal is sent to supply side and user, carry out specifically action, as follows:

According to cold water energy generated output p _cHPand the cold h that exerts oneself (t) _cHP(t) signal, controls unit and will regulate the action of day part in the time in future;

According to not air-conditioning power consumption p in the same time of user _eHP(t, l) and refrigerating capacity h _eHP(t, l), controls user's side different distance user and uses air conditioner refrigerating amount, and close fan coil amount.

Fig. 7 is the electric load levelized design sketch after regulating, and from accompanying drawing 7, load electric has reached the effect of levelized.

Claims (9)

1. A unit joint dispatching system for user refrigeration, characterized in that it includes: supply-side equipment, detection and control equipment, and multiple user-side equipment; Supply-side equipment includes: a back-pressure combined heat and power unit (A) for power generation and hot water supply, and a centralized heat absorption chiller installed at the outlet of the hot water to enable the unit to provide cold water; Each user-side device includes: a refrigeration device (108) driven by the electricity generated by the above-mentioned unit; a fan coil (110), which is provided with cold water cooling by the above-mentioned refrigerator; a non-refrigeration power consumption device; Detection and control equipment includes: The remote centralized controller collects the following data within a period of time: the cooling water output of the unit and the power output of power generation; the total power consumption; the energy consumption of cold water; the distance between each user and the heat source, that is, the above-mentioned unit; The comprehensive scheduling control device (115), according to the above-mentioned distance, calculates the amount of insufficient cold water supply in the fan coil unit due to the reduction of cold water supply in the next period, and the insufficient amount of supply is supplemented by the cooling capacity of the refrigeration device, that is Refrigeration device consumes electricity for refrigeration; from this, calculate the total power consumption of the electricity load including the refrigeration device in the next period, and calculate the standard deviation for it. When the standard deviation is the smallest, the levelization of the electricity load is achieved, and we get The output power of the unit, the control signal of cold water output, the power consumption control signal of the refrigeration device and the cooling capacity signal; The remote centralized controller controls the unit’s chilled water output and power generation output according to the unit’s output electric energy and chilled water output control signal; and controls the cooling capacity of the refrigeration unit and turns off the fan panel respectively according to the power consumption control signal and cooling capacity signal of the refrigeration unit Control volume. 2. The scheduling system according to claim 1, characterized in that: the refrigeration device is an air conditioner. 3. The dispatching system according to claim 2, characterized in that: the remote centralized controller comprises a first remote centralized controller and a second remote centralized controller, the first remote centralized controller collects the information of the supply side equipment, The second remote centralized controller collects the information of the user-side equipment. 4. The dispatching system according to claim 3, characterized in that: the detection and control equipment further comprises: an electric meter for detecting the power consumption of the power consumption device; a remote switch (117) for controlling the cooling capacity of the refrigeration device ); a consumption meter (111) for detecting data of cold water consumption of the fan coil unit (110); a remote control switch (116) for controlling the flow valve of the fan coil unit (110); a control executive device (118) of the unit. 5. The dispatching system according to claim 4, characterized in that, the integrated dispatching control device (115) comprises: The first data receiving unit (201) that receives the user's non-cooling power consumption data, user's cold water consumption data, user's pipeline distance information, the cold water flow rate of the back pressure cogeneration unit (A), and the power generation output; a data decoder unit (202) that decodes all data received; A data storage unit (203) for storing all decoded data; a dispatch control signal calculation unit (204) generating a dispatch control signal; a signal encoder (205) for encoding said dispatch control signal; and The encoded scheduling control signal is transmitted to the sending unit (206) of the first remote centralized controller (1121) and the second remote centralized controller (1122). 6. The dispatching system according to claim 4, characterized in that, the control execution device (118) of the unit includes a dispatching control signal transceiving code memory (302), a drive circuit (303) and a control device (304), the The scheduling control signal is decoded by the dispatching control signal sending and receiving encoding memory to generate a scheduling control command for the back pressure cogeneration unit, and the signal output by the drive circuit triggers the control device, and the control device then controls the valve action of the back pressure cogeneration unit. 7. A dispatching system according to claim 6, characterized in that the comprehensive dispatching control device (115) is connected to the cloud computing computing service system (917) through the power optical fiber (120), and performs cloud computing on the collected data. 8. The dispatching system according to claim 7, wherein the second remote centralized controller comprises air-conditioning ammeter pulse counters, cold water flow pulse counters, code memory connected in sequence, and interconnected control signal receiving decoders and remote control Signal generator. 9. A method for controlling the dispatching system according to any one of claims 1-8, characterized in that it comprises the steps of: i. Measurement (1) Measure the supply side: power generation output P _CHP (t) and cooling output H _CHP (t) of cogeneration units; (2) Measuring user side: (i=0～N); a) Pipeline distance S _i between 0~N users and the unit; Taking ΔT as the sampling period, collect the following data within the time period from 0 to T: b) Power consumption P _i (t) of 0 to N users in previous periods; c) The cold water consumption power H _i (t) of each period before 0~N users; d) The installed capacity P _i ^EHP of the air conditioner in each period before 0~N users; ii. Calculate (1) Calculate the total power consumption of all users

(2) Based on the total power consumption P _sum (t) calculated in (1) and the H _CHP (t) and P _CHP (t) collected in step i, predict the power load of T ~ 2T for a period of time in the future P _load (t), cogeneration unit power generation output P _CHP (t) and cooling output H _CHP (t); (3) User grouping: calculate the equivalent distance from each user to the unit

, the users with the same _si are divided into the same group, counted as the l group, l=s _i , the total is L group, L is a natural number, v is the flow velocity of the water flow in the pipeline, ΔT is the unit adjustment time, that is, the above sampling cycle; (4) For the L groups obtained in (3), obtain: H _load (l)=∑H _i (t,l); H _i (t,l) is the cold water consumption power of user i in group l at time t;

P _i ^EHP (l) is the installed capacity of the air conditioner of user i in group l; iii. Control Computing (1) Objective function $\mathrm{<span\; class="notranslate">\; \&Delta;p</span>}<span\; class="notranslate">\; =</span>\sqrt{\frac{\underset{\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; T</span>}}{\overset{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; T</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}{<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; load</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span>{\stackrel{<span\; class="notranslate">\; \&OverBar;</span>}{\mathrm{<span\; class="notranslate">\; P</span>}}}_{\mathrm{<span\; class="notranslate">\; load</span>}}<span\; class="notranslate">\; )</span>}^{\mathrm{<span\; class="notranslate">\; 2</span>}}}{\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 1</span>}}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; )</span>$ The equivalent load after leveling is defined as follows: p _load (t)=P _load (t)-(p _CHP (t)-P _CHP (t))+p _EHPs (t) (2) Among them, p _load (t) is the regulated equivalent load power, p _CHP (t) is the regulated generating power of the unit, and p _EHPs (t) is the power consumption of all users at t; The average value of the equivalent electrical load is defined as follows: ${\stackrel{<span\; class="notranslate">\; \&OverBar;</span>}{\mathrm{<span\; class="notranslate">\; P</span>}}}_{\mathrm{<span\; class="notranslate">\; load</span>}}<span\; class="notranslate">\; =</span>\frac{\underset{\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; T</span>}}{\overset{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; T</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}{\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; load</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span>}{\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 3</span>}<span\; class="notranslate">\; )</span>$ (2) Constraint equation a) Cooling load balance equation It is the core of the method to use electric refrigeration to replace the chilled water cooling capacity of the unit. If Δh(t) represents the insufficient cooling power of the unit in the tth period, then its expression is: Δh(t)=|H _CHP (t)-h _CHP (t)| (4) Among them, h _CHP (t) is the cooling output power of the unit after adjustment, and H _CHP (t) is the predicted value in step ii; Insufficient water supply in the t-th period will be compensated by the air conditioners in the 0-L user group through electricity consumption in the t-t+L period respectively. The specific formula is: $\mathrm{<span\; class="notranslate">\; \&Delta;h</span>}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}}{\overset{\mathrm{<span\; class="notranslate">\; L</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; EHP</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 5</span>}<span\; class="notranslate">\; )</span>$ h _EHP (t+l,l) is the sum of cooling power of user air conditioners in group l at time t+l; _hEHP (t,l) is the sum of cooling power of user air conditioners in group l at time t; t+l≤ T; In formula (5), h _EHP (t, l) can be 0. On the one hand, when h _EHP (t, l) is 0, not all user groups participate in the compensation; on the other hand, if the specified The total scheduling time of , and the insufficient water supply has not affected the remote user groups, then these user groups will not participate in the compensation; b) Constraints of back pressure thermoelectric unit: Lower limit of power output: ${\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}^{\mathrm{<span\; class="notranslate">\; min</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 90</span>}<span\; class="notranslate">\; \%</span><span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 6</span>}<span\; class="notranslate">\; )</span>$ Power output upper limit: ${\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}^{\mathrm{<span\; class="notranslate">\; max</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>{\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 7</span>}<span\; class="notranslate">\; )</span>$ Power generation output limit: ${\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}^{\mathrm{<span\; class="notranslate">\; min</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; <</span>{\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&le;</span>{\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}^{\mathrm{<span\; class="notranslate">\; max</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 8</span>}<span\; class="notranslate">\; )</span>$ Combined heat and power ratio constraint: h _CHP (t)=RDB·p _CHP (9) ${\mathrm{<span\; class="notranslate">\; \&eta;</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}^{\mathrm{<span\; class="notranslate">\; B</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span>}{{\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}^{\mathrm{<span\; class="notranslate">\; B</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span>}<span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 10</span>}<span\; class="notranslate">\; )</span>$ Among them, RDB is the heat-to-power ratio of the back pressure cogeneration unit,

is the efficiency of the back pressure cogeneration unit, is the power consumption of the combined heat and power unit at time t, and P _CHP is the rated power of the unit; thus, the total energy consumption of the combined heat and power unit is calculated as: ${\mathrm{<span\; class="notranslate">\; f</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}^{\mathrm{<span\; class="notranslate">\; B</span>}}<span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; T</span>}<span\; class="notranslate">\; +</span>\mathrm{<span\; class="notranslate">\; 1</span>}}{\overset{\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; T</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}{\mathrm{<span\; class="notranslate">\; \&eta;</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}^{\mathrm{<span\; class="notranslate">\; B</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; \&Center\; Dot;</span><span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; h</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; CHP</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 11</span>}<span\; class="notranslate">\; )</span>$ c) User-side air conditioning constraints Thermoelectric ratio constraint: h _EHP (t,l)=COP p _EHP (t,l) (12) Air conditioner output upper limit: 0≤p _EHP (t,l)≤min(P _EHP (l),H _load (l)/COP) (13) Among them, the heat-to-electricity ratio coefficient of the COP distributed air conditioner; The power consumption of the air conditioner can not only compensate for the lack of cold water, but also increase the load during low power periods; the sum of the cooling power consumption of all user groups in each period: ${\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; EHPs</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\underset{\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 0</span>}}{\overset{\mathrm{<span\; class="notranslate">\; L</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}{\mathrm{<span\; class="notranslate">\; P</span>}}_{\mathrm{<span\; class="notranslate">\; EHP</span>}}<span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; t</span>}<span\; class="notranslate">\; ,</span>\mathrm{<span\; class="notranslate">\; l</span>}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; -</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 14</span>}<span\; class="notranslate">\; )</span>$ Among them, p _EHP (t, l) is the electric power consumption of the user air conditioner of group l at time of t; P _CHP (t), H _CHP (t) predicted in step ii; step ii) The calculated variables P _load (t), H _load (l), and P _EHP (l) are substituted into the formulas (1)~(14) and jointly solved. When the objective function Δ _p is the minimum value, the optimized The power generation output p _CHP (t), the cooling power h _CHP (t) of the execution variable unit, the air conditioner power consumption p _EHP (t,l) and the cooling capacity h _EHP (t,l) of the user at different times; iv. Send control signals to providers and users to perform actions According to the execution variable obtained after the optimization of iii, the variable signal is sent to the supply side and the user, and specific actions are performed, as follows: According to the generating output p _CHP (t) and cooling output h _CHP (t) signals of the heating unit, control the action of the unit in each period of the future adjustment time; According to the power consumption p _EHP (t,l) and the cooling capacity h _EHP (t,l) of the air conditioner at different times of the user, the cooling capacity of the air conditioner used by the user at different distances from the user side is controlled, and the fan coil unit is turned off.

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