CN106936144A - A kind of power distribution station three-phase power balance device and method of self-adaptive regulating - Google Patents
A kind of power distribution station three-phase power balance device and method of self-adaptive regulating Download PDFInfo
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- CN106936144A CN106936144A CN201710314833.9A CN201710314833A CN106936144A CN 106936144 A CN106936144 A CN 106936144A CN 201710314833 A CN201710314833 A CN 201710314833A CN 106936144 A CN106936144 A CN 106936144A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 238000004458 analytical method Methods 0.000 claims abstract description 6
- 238000013480 data collection Methods 0.000 claims abstract description 6
- 241001269238 Data Species 0.000 claims description 15
- 230000006698 induction Effects 0.000 claims description 9
- 230000033228 biological regulation Effects 0.000 claims description 5
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- 238000004364 calculation method Methods 0.000 claims description 3
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- 230000003044 adaptive effect Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for AC mains or AC distribution networks
- H02J3/26—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention discloses a kind of power distribution station three-phase power balance device and method of self-adaptive regulating, three-phase power imbalance problem in the circuit of power distribution station can cause current in middle wire excessive, increase line loss, a series of problems, such as increasing the electric energy loss of distribution transformer, reasonably installing self-adaptive regulating can efficiently solve this problem.This method is by installing self-adaptive regulating on the key node of power distribution station, and by the intelligence master switch monitoring of device main frame and collect data, assigned to phase-change switch and perform order, balance the three phase power of power distribution station, it is mainly characterized by, only limited self-adaptive regulating need to be installed on crucial node, platform area is responsible for by the main frame intelligence master switch in self-adaptive regulating again and becomes three-phase voltage and current data collection, computing, analysis, perform equilibrium strategy, manage and dispatch whole platform area phase-change switch and perform commutation, autobalance threephase load electric current.
Description
Technical field
The invention belongs to field of power system control, it is related to electric power system data to monitor and collection, communication of power system.
Background technology
Currently, distribution net work structure is complicated, and the electricity consumption type of power consumer is also varied, because load type is different, use
Not equal many reasons of electric time, may cause distribution transformer platform area serious three-phase imbalance occur.As user is to electricity
The requirement of energy quality is improved constantly, and power distribution network three-phase imbalance problem becomes increasingly conspicuous.
Three-phase imbalance problem is a power quality problem, and its uneven degree has difference to low-voltage power supply and distribution system
The influence of degree, to the transformer in system, the line loss of electrical equipment and whole system can produce many harm and bad
Influence.And three phase power can effectively be balanced using self-adaptive regulating, make three-phase balance movement as far as possible.
The three phase power of power distribution station is balanced using self-adaptive regulating, being capable of real-time monitoring and collection electric power
System three-phase imbalance data, and three-phase imbalance problem is efficiently solved, can greatly reduce on the circuit of power distribution station
Power attenuation, has great significance to engineering practice.
The content of the invention
Goal of the invention：The present invention proposes power distribution station three-phase power balance device and the side of a kind of self-adaptive regulating
Method, in order to the three phase power of dynamic switching power distribution station in real time, effectively reduces power distribution station three characteristics of the middle term off-center operation
Produced power attenuation.
The technical scheme is that：A kind of power distribution station three-phase power balance device of self-adaptive regulating, including
Transformer, master switch, magnetic induction loop CT, reversing switch, individual event load, mobile phone, PC and GPRS, described transformer and electricity
Gas connection, is parallel with master switch, magnetic induction loop CT, reversing switch on electric wiring；Reversing switch is loaded with individual event
Connection；Mobile phone is wirelessly connected with master switch；PC is wirelessly connected with master switch；Magnetic induction loop CT
It is connected with master switch.
Described mobile phone is smart mobile phone.
Described reversing switch at least one.
Described mobile phone is wirelessly connected with master switch, and its connected mode is wifi patterns.
Described PC is wirelessly connected with master switch, and its connected mode is to be connected by GPRS.
A kind of method of the power distribution station three-phase power balance of self-adaptive regulating, installs adaptive on crucial node
Adjusting means is answered, then platform area is responsible for by the main frame intelligence master switch in self-adaptive regulating and become three-phase voltage and current data
Collection, computing, analysis, perform equilibrium strategy, manage and dispatch whole platform area phase-change switch and perform commutation, and autobalance three-phase is born
Carry electric current.
The adjusting method of self-adaptive regulating is intelligent master switch real-time monitoring three-phase imbalance, calculates optimal balance
State, and commutation instruction is issued to phase-change switch according to result of calculation, phase-change switch is arranged on Customer Premises along branch road, monitoring
This branch service information on load.
The control method of master switch is：Master switch calculates 24 hour datas, show that minimum current goes out current moment, then
Master switch takes 24 hourly average load datas, 24 hourly average loads of phase-change switch three-phase current is added, according to imbalance
The tactful pre- degree of unbalancedness calculated after regulation；If the degree of unbalancedness effect after presetting is relatively better than 2% before, commutation is carried out, calculated
After going out commutation equipment, the commutation time is calculated according to the minimal instant for calculating before, send commutation phase and commutation time to commutation
Switch, commutation is carried out after by phase-change switch countdown；After the completion of commutation, master switch starts to calculate once more in minimal instant
24 hour datas, carry out new round commutation.
By installing self-adaptive regulating on the key node of power distribution station, and by device main frame intelligence master switch
Monitoring and collection data, assign to phase-change switch and perform order, balance the three phase power of power distribution station.
Only limited self-adaptive regulating need to be installed on crucial node, then by the main frame in self-adaptive regulating
Intelligent master switch is responsible for platform area and becomes three-phase voltage and current data collection, computing, analysis, performs equilibrium strategy, management and tune
Spend whole platform area phase-change switch and perform commutation, autobalance threephase load electric current.
It is defined by the intelligent master switch of self-adaptive regulating, electricity just calculates 24 hour datas on master switch, and
Half an hour compares a three-phase current minimum time of occurrence, when master switch fills up 24 hour data for the first time, can draw most
Low current goes out current moment, and then master switch takes 24 hourly average load datas, adds 24 hours of phase-change switch three-phase current
Average load, according to the pre- degree of unbalancedness calculated after regulation of uneven strategy.
If the degree of unbalancedness effect after presetting is relatively better than 2% before, commutation is carried out, after calculating commutation equipment, according to it
Before the minimal instant that calculates calculate the commutation time, send commutation phase and commutation time to phase-change switch, meter is fallen by phase-change switch
When commutation is carried out after.
After the completion of commutation, master switch starts to calculate 24 hour datas once more in minimal instant, carries out new round commutation.
What the present invention can bring has the beneficial effect that：
The larger error of artificial prediction commutation can be reduced by this method, due to the real-time monitoring and number of its intelligent master switch
According to collection so that commutation is more accurate, power distribution station can be allowed to be closer to three-phase equilibrium state and to be run, greatly reduce distribution
Power attenuation in platform area, it is also more practical in engineering practice.
Brief description of the drawings
Fig. 1 is apparatus structure block diagram of the invention；
Fig. 2 is master switch control flow Fig. 1 of the present invention；
Fig. 3 is master switch control flow Fig. 2 of the present invention；
In figure：Transformer 1, master switch 2, magnetic induction loop CT 3, reversing switch 4, individual event load 5, mobile phone 6, PC 7,
GPRS8。
Specific embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Such as Fig. 1-3, a kind of power distribution station three-phase power balance device of self-adaptive regulating, including transformer 1, master control
Switch 2, magnetic induction loop CT3, the load 5, mobile phone 6 of reversing switch 4, individual event, PC 7 and GPRS8, described transformer 1 with it is electric
Connection, is parallel with master switch 2, magnetic induction loop CT3, reversing switch 4 on electric wiring；Reversing switch 4 is born with individual event
5 are carried to connect；Mobile phone is wirelessly connected with master switch 2；PC 7 is wirelessly connected with master switch 2；Magnetic strength
Coil CT3 is connected with master switch 2.
Further mobile phone 6 is smart mobile phone, and APP can be installed on mobile phone, is connected with master switch by APP, from
And obtain corresponding data.
Further reversing switch 4 at least one, can wireless extensions as needed, from 1 to n, embody and be
The good autgmentability of system.
Further mobile phone is wirelessly connected with master switch 2, and its connected mode is wifi patterns, wifi connections
It is reliable, without increasing too many cost, wifi transmitters are set on master switch 2, by wifi transmitters and the number of master switch
It is attached according to output circuit.
Further PC 7 is wirelessly connected with master switch 2, and its connected mode is to be connected by GPRS8, is led to
The mode of GPRS is crossed, the data of master switch 2 can be obtained with PC.
The method of the power distribution station three-phase power balance of its self-adaptive regulating is to install adaptive on crucial node
Adjusting means is answered, then platform area is responsible for by the main frame intelligence master switch in self-adaptive regulating and become three-phase voltage and current data
Collection, computing, analysis, perform equilibrium strategy, manage and dispatch whole platform area phase-change switch and perform commutation, and autobalance three-phase is born
Carry electric current.
The adjusting method of self-adaptive regulating is intelligent master switch real-time monitoring three-phase imbalance, calculates optimal balance
State, and commutation instruction is issued to phase-change switch according to result of calculation, phase-change switch is arranged on Customer Premises along branch road, monitoring
This branch service information on load.
The control method of master switch is：Master switch calculates 24 hour datas, show that minimum current goes out current moment, then
Master switch takes 24 hourly average load datas, 24 hourly average loads of phase-change switch three-phase current is added, according to imbalance
The tactful pre- degree of unbalancedness calculated after regulation；If the degree of unbalancedness effect after presetting is relatively better than 2% before, commutation is carried out, calculated
After going out commutation equipment, the commutation time is calculated according to the minimal instant for calculating before, send commutation phase and commutation time to commutation
Switch, commutation is carried out after by phase-change switch countdown；After the completion of commutation, master switch starts to calculate once more in minimal instant
24 hour datas, carry out new round commutation.
By installing self-adaptive regulating on the key node of power distribution station, and by device main frame intelligence master switch
Monitoring and collection data, assign to phase-change switch and perform order, balance the three phase power of power distribution station.
Only limited self-adaptive regulating need to be installed on crucial node, then by the main frame in self-adaptive regulating
Intelligent master switch is responsible for platform area and becomes three-phase voltage and current data collection, computing, analysis, performs equilibrium strategy, management and tune
Spend whole platform area phase-change switch and perform commutation, autobalance threephase load electric current.
It is defined by the intelligent master switch of self-adaptive regulating, electricity just calculates 24 hour datas on master switch, and
Half an hour compares a three-phase current minimum time of occurrence, when master switch fills up 24 hour data for the first time, can draw most
Low current goes out current moment, and then master switch takes 24 hourly average load datas, adds 24 hours of phase-change switch three-phase current
Average load, according to the pre- degree of unbalancedness calculated after regulation of uneven strategy.
If the degree of unbalancedness effect after presetting is relatively better than 2% before, commutation is carried out, after calculating commutation equipment, according to it
Before the minimal instant that calculates calculate the commutation time, send commutation phase and commutation time to phase-change switch, meter is fallen by phase-change switch
When commutation is carried out after.
After the completion of commutation, master switch starts to calculate 24 hour datas once more in minimal instant, carries out new round commutation.
The above is only the preferred embodiment of the present invention, it should be pointed out that：Come for those skilled in the art
Say, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications should also be regarded
It is protection scope of the present invention.
Claims (8)
1. a kind of power distribution station three-phase power balance device of self-adaptive regulating, including transformer（1）, master switch（2）、
Magnetic induction loop CT（3）, reversing switch（4）, individual event load（5）, mobile phone（6）, PC（7）And GPRS（8）, it is characterised in that：Institute
The transformer stated（1）It is connected with electric wiring, master switch is parallel with electric wiring（2）, magnetic induction loop CT（3）, commutation
Switch（4）；Reversing switch（4）Loaded with individual event（5）Connection；Mobile phone wirelessly with master switch（2）Connection；PC
（7）Wirelessly with master switch（2）Connection；Magnetic induction loop CT（3）With master switch（2）Connection.
2. a kind of power distribution station three-phase power balance device of self-adaptive regulating according to claim 1, its feature
It is：Described mobile phone（6）It is smart mobile phone.
3. a kind of power distribution station three-phase power balance device of self-adaptive regulating according to claim 1, its feature
It is：Described reversing switch（4）At least one.
4. a kind of power distribution station three-phase power balance device of self-adaptive regulating according to claim 1, its feature
It is：Described mobile phone wirelessly with master switch（2）Connection, its connected mode is wifi patterns.
5. a kind of power distribution station three-phase power balance device of self-adaptive regulating according to claim 1, its feature
It is：Described PC（7）Wirelessly with master switch（2）Connection, its connected mode is by GPRS（8）Connection.
6. the method for the power distribution station three-phase power balance of a kind of self-adaptive regulating, it is characterised in that：In crucial node
Upper installation self-adaptive regulating, then change three-phase voltage in platform area is responsible for by the main frame intelligence master switch in self-adaptive regulating
With current data collection, computing, analysis, equilibrium strategy is performed, manage and dispatch whole platform area phase-change switch and perform commutation, automatically
Balanced three-phase load electric current.
7. the method for the power distribution station three-phase power balance of a kind of self-adaptive regulating according to claim 1, it is special
Levy and be：The adjusting method of self-adaptive regulating is intelligent master switch real-time monitoring three-phase imbalance, calculates optimal balance
State, and commutation instruction is issued to phase-change switch according to result of calculation, phase-change switch is arranged on Customer Premises along branch road, monitoring
This branch service information on load.
8. the method for the power distribution station three-phase power balance of a kind of self-adaptive regulating according to claim 2, it is special
Levy and be：The control method of master switch is：Master switch calculates 24 hour datas, show that minimum current goes out current moment, then
Master switch takes 24 hourly average load datas, 24 hourly average loads of phase-change switch three-phase current is added, according to imbalance
The tactful pre- degree of unbalancedness calculated after regulation；If the degree of unbalancedness effect after presetting is relatively better than 2% before, commutation is carried out, calculated
After going out commutation equipment, the commutation time is calculated according to the minimal instant for calculating before, send commutation phase and commutation time to commutation
Switch, commutation is carried out after by phase-change switch countdown；After the completion of commutation, master switch starts to calculate once more in minimal instant
24 hour datas, carry out new round commutation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710314833.9A CN106936144A (en) | 2017-05-07 | 2017-05-07 | A kind of power distribution station three-phase power balance device and method of self-adaptive regulating |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508297A (en) * | 2017-08-10 | 2017-12-22 | 国家电网公司 | A kind of distribution topological structure verification and maintaining method |
| CN108493965A (en) * | 2018-04-18 | 2018-09-04 | 国网天津市电力公司电力科学研究院 | Distribution transformer three-phase imbalance Automatic adjustment method |
| CN111044893A (en) * | 2019-12-12 | 2020-04-21 | 云南电网有限责任公司临沧供电局 | System and method for measuring load response time of phase change switch |
| US12132979B2 (en) | 2019-08-28 | 2024-10-29 | Lg Innotek Co., Ltd. | Optical device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107508297A (en) * | 2017-08-10 | 2017-12-22 | 国家电网公司 | A kind of distribution topological structure verification and maintaining method |
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| CN108493965A (en) * | 2018-04-18 | 2018-09-04 | 国网天津市电力公司电力科学研究院 | Distribution transformer three-phase imbalance Automatic adjustment method |
| US12132979B2 (en) | 2019-08-28 | 2024-10-29 | Lg Innotek Co., Ltd. | Optical device |
| CN111044893A (en) * | 2019-12-12 | 2020-04-21 | 云南电网有限责任公司临沧供电局 | System and method for measuring load response time of phase change switch |
| CN111044893B (en) * | 2019-12-12 | 2020-11-13 | 云南电网有限责任公司临沧供电局 | System and method for measuring load response time of phase change switch |
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Application publication date: 20170707 |