DE102006037606A1 - Method for electrical power supply and demand, requires assignment of computing device to electrical power consumer and using electrical power supplier data - Google Patents

Abstract

A electrical power demand and supply method, especially for one or more power consumers connected to a power supply network (10) involves use of a computer device assigned to the power consumer for automatically making available electrical power for the power consumer connected to the power supply network (10), on the basis of specified characteristics of an electrical power supplier, in particular a given amount of electrical energy of given power, in the framework of an electronic order process and, preferably, in an electronic auction. Independent claims are included for the following. (1) (A) A system for carrying out the method (2) (B) A control device for carrying out the method.

Description

The The present invention relates to a method for requesting and providing electrical energy, in particular a certain amount of energy and / or energy of particular power, for one or more, to one Power supply connected power consumers. The present The invention further relates to a method for controlling a Group of - in particular by means of a central control device - controlled power consumers. After all The invention relates to systems and control devices for carrying out the aforementioned method.

Between Suppliers of electrical energy on the one hand and electrical relays Energy, on the other hand, becomes common supply closed for an indefinite period. If the recipient of the energy want to change provider, it is necessary to terminate this contract first, and then to another To switch providers. Such supplier changes mean considerable bureaucratic effort. This effort limits the interest of electricians Energy to supplier changes. This restricts competition among the Providers and leads ultimately increased Electricity prices. A faster and easier provider change, in particular a simpler contract with a particular provider, would be electric for the recipients Energy saving potential. The providers would turn for their part benefit from reduced administrative costs.

For the recipients electrical energy, there are further potential savings. These especially concern the consumption side. So different price designs depend Of electrical energy providers often from the time, too the electrical energy is consumed. For example, nighttime electricity is common cheaper as a daytime stream. In the prior art are - lack of existing technology - from The savings potential resulting from these price developments is insufficient exploited.

task the present invention is to provide methods and systems with the reference of electrical energy this energy needs and / or supply and / or price optimized and / or flexibly procure and / or can consume.

These Task is solved by a method having the features of claim 1 and a system and a control device for carrying out the method according to claims 16 and 21.

• a) eine dem Stromverbraucher zugeordnete Recheneinrichtung bestellt – vorzugsweise ersteigert – automatisch anhand vorbestimmter Kenndaten elektrische Energie eines Energieanbieters, insbesondere eine bestimmte Menge elektrischer Energie oder elektrische Energie bestimmter Leistung, im Rahmen eines elektronischen Bestellvorgangs, vorzugsweise im Rahmen einer elektronischen Auktion,
• b) die bestellte elektrische Energie wird anschließend vorzugsweise automatisch dem an das Stromversorgungsnetz angeschlossenen Stromverbraucher zur Verfügung gestellt, insbesondere in das Stromversorgungsnetz eingespeist.

There is accordingly provided a method for (automatically) requesting and providing electrical energy - in particular a certain amount of energy - for one or more power consumers connected to a power supply network. The method has the following steps:

• a) an arithmetic device associated with the power consumer orders - preferably auctioned - automatically on the basis of predetermined characteristics electrical energy of an energy provider, in particular a certain amount of electrical energy or electrical energy of certain power, as part of an electronic ordering process, preferably in the context of an electronic auction,
• b) the ordered electrical energy is then preferably automatically made available to the power consumers connected to the power grid, in particular fed into the power grid.

According to the invention can accordingly the computing device associated with the one or more power consumers order independent electrical energy from one or more providers. This is then made available to the power consumer.

According to the invention is added one or more consumers directly or indirectly associated with a computing device, for example, via a Data network, such as the Internet, communicates with the providers, preferably with a further, un indirectly or indirectly the Suppliers associated computing device. As a data network can in principle also The actual power grid used to be the provider and the one or more power consumers are connected. Like the expert recognize, here are all Networks usable to exchange data.

An "indirect" assignment of the computing device means in this context that the providers assigned Computing device and / or the power consumers associated computing device For example, each also an electronic platform of a the providers or the electricity consumers can be independent provider. It is crucial that the corresponding computing device at least temporary Data of the provider or the recipient of electrical energy manages or forwarded or available represents that for the electronic order and / or purchase of electrical Energy through the computer associated with the power consumers required are. In extreme cases, the providers and even the power consumers associated computing devices be identical.

In the simplest case, the computing device may be part of a conventional PC computer system be. However, it is preferably part of a one or more power consumers associated ballast. The computing device can have a suitable microprocessor with necessary interfaces, optionally memory modules and the like.

alternative or additionally is at least the power consumers associated computing device Part of a central control device, the respective power consumers control, in particular can turn on or off.

Under The term "control device" or "taxes" are used in the context this application for reasons of simplicity, both control devices as well as control devices or both control operations as also control operations Understood.

The Order or purchase of electrical energy by the Power consumers associated computing device can be used in an electronic Auction on an appropriate electronic platform, to both the power consumer associated computing device as well as the provider of electrical energy associated computing device can access. The purchase of the energy can be by the known electronic Bidding procedures are underway, but automated.

Preferably transmitted the power consumer associated computing device an offer signal to the provider or deposit this on the electronic auction platform. The offer signal can be the price of the amount of energy to be auctioned represent and / or the price of the service to be auctioned (amount of energy per Time unit) and / or the power at which the desired amount of energy to be provided after the purchase and / or the time and / or the period of time at which the amount of energy to be auctioned is provided should.

in the As part of the auction procedure this offer signal is the the power consumer associated computing device as possible together with offer or Offer acceptance signals of the suppliers of electrical energy or the assigned to the one or more providers computing device.

According to the invention can advantageously electronically supply and demand for electrical energy together become. This merge extends preferably fully automatic, whereby the subsequent release, i. the feeding of the ordered or auctioned energy into the Power grid, preferably automatically. For the concrete, control technology Implementation of the bidding process and / or the ordering process and / or the subsequent, There is automatic feeding process - as the expert of the state Technology recognizes - many possibilities. Parts or the entire process can conveniently by means of suitable Software to be implemented.

The Order of electrical energy can alternatively without auction process respectively. For example, you can the suppliers of electrical energy to the power consumers connected to the data network continuously or in, in particular periodic, time intervals signals send the offers to conclude an electricity supply contract represent predetermined conditions. As soon as there is an offer among these offers, which is in the power consumer associated computing device, in particular in the memory of the computing device, deposited criteria corresponds, for example with regard to the electricity price or the delivery time, this can to the respective supplier of electrical energy a signal for acceptance submit the offer.

To Reception of this acceptance signal by the provider, in particular by the associated with this computing device is then, for example a power supply contract is concluded with the specified conditions. After this conclusion and, if appropriate, after the execution of identifying the suppliers and / or the recipients of electrical energy and / or verifying measures the provider of electrical energy can provide the contractual energy feed into the power grid, to which the one or more power consumers are connected.

Vice versa it is naturally also possible that the power consumer associated computing device in turn transmit signals to the electrical energy providers that represent characteristics to which the electrical energy is to be ordered. Once a Provider, in particular the computing device assigned to it, would like to accept the offer becomes the power consumer associated computing device corresponding acceptance signal to conclude a delivery contract sent.

Preferably, the operator can specify or set the various characteristic data or criteria according to which the computing device assigned to the current consumer attempts to order electrical energy from a supplier of electrical energy. Thus, preferably, the energy quantity prices, delivery times and the like accepted by the computing device can be preset by these values in one of the computations institution allocated memory.

In a further, particularly preferred embodiment of the present invention Invention provides the power consumer associated computing device or the supplier of electrical energy, in particular the supplier associated computing device while For a first time T1, an offer A1 is ready, the predetermined one Criteria, in particular as regards the energy price.

If after expiration of the period T1 by one or more providers or by the power consumer associated computing device no for the offer A1 matching acceptance signal has been provided, represents the power consumer associated computing device or the provider of electrical energy for a second period of time T2 another offer A2, which, in contrast, corresponds to changed criteria, wherein the offer A2 preferably increased compared to the offer A1 or low energy price.

With In other words, for example, the power consumer tries associated computing device during a first period of time, electrical energy to a particular, purchase maximum electricity price. Should during this first period no supplier of electrical energy at this maximum electricity price provide suitable offer and thus no acceptance signal for the offer generate, the computing device can automatically the maximum accepted Increase electricity price. With this increased Electricity price is during a second period of time again trying to conclude a supply contract. This Procedure may be by further reducing the maximum acceptable Electricity price can be continued arbitrarily until a delivery contract can be closed.

If it after completion of a delivery contract for feeding the electrical Energy comes into the power grid associated power grid, it is advantageous to monitor this energy feed. This is preferably done by means of a (or central) assigned to the electricity consumer (s) Control device, which in particular monitors the time of energy supply, the total amount of energy fed in, each fed Performance or the maximum input power and the like.

The Object of the present invention is also achieved by a method for Controlling a group of electricity consumers - in particular by means of a central control device - according to claim 8 and a system and a control device for carrying out the Process according to claim 17 and 21.

After that the current total power consumption of the group is determined and dependent on this consumption value will be one or more of the electricity consumers controlled. additionally or alternatively, one or more of the power consumers of the Group dependent controlled by data representing the current or future electricity price.

The Control of the power consumers of the group is preferably carried out by turning one or more of the power consumers on or off or by increasing or throttling their power consumption.

Prefers one or more of the power consumers are switched on or off or their power consumption is increased or throttled when the Total power consumption of the group exceeds a predetermined limit.

For example can in a private household the individual power consumers, such as the Freezer, a heat pump or the like, connected to a central control device which works according to the above method. The control device can reduce the power consumption of individual consumers connected to it determine and from this the total power consumption of the group. If, for example, by an operator another device of the group is turned on, z. B. in addition a TV, and then the total power consumption of the given Exceeds limit, For example, the controller may include one or more devices of the group automatically turn off or power consumption by the same Reduce power consumption.

modern Refrigerators are coming because of their good insulation meanwhile comparatively long time without power supply off. Therefore, the central control device for example, the refrigerator switch off or reduce in power consumption as soon as the Total power consumption exceeds the limit. The refrigerator can later be switched on again or its power consumption can be increased. This can be done after a predetermined period of time or as soon as the limit is fallen below again.

It can also be provided according to the invention that one or more of the power consumers of the group are controlled such that the total consumption of the group follows a predetermined time function. It can also be provided, depending gig from the time one or more of the power consumers to control, in particular on or off.

If The control of electricity consumers is done on the basis of data that the current or future Represent electricity price, can be provided, this data from one of the central control device read out associated memory. The data may be the central controller however, also by remote data transmission supplied be, especially via the Internet.

Further Features of the present invention will become apparent from the appended claims, from the following description of preferred embodiments and from the attached Drawings. Show:

1 a schematic representation of the inventive network of electricity consumers and suppliers of electrical energy, and

2 a schematic sectional view of a residential building with electricity consumers and a central control device that operates according to the inventive method.

As in 1 can be seen, are connected to an energy or power grid 10 connected to various consumers of electrical energy, for example, private households or homes 12 as well as industrial consumers 14 ,

The recipients of electrical energy 12 . 14 are each different power consumers 16 assigned. Specifically, therefore, are the power consumers 16 to the power grid 10 connected. For the residential houses 12 are in 2 individual examples of electricity consumers 16 represented, for example, a stove 18 , a freezer 20 , a washing machine 22 as well as a heat pump 24 ,

The individual electricity consumers 12 . 14 are according to the invention with each other via a data network 26 , such as internet, connected. To the data network 26 Furthermore, different suppliers of electrical energy are connected, for example wind farms having wind energy plants 28 , Thermal power plants 30 or similar. The providers of electrical energy 28 . 30 in the present case are at the same time the producers of the same. Naturally, this can also be different, ie providers and producers can be separate companies or persons.

About the data network 26 can the electricity consumers 12 . 14 and the providers of electrical energy 28 . 30 communicate with each other. More specifically, corresponding computing devices communicate with each other, on the one hand the Strombeziehern 12 . 14 are assigned and on the other hand, the suppliers of electrical energy 28 . 30 ,

The providers of electrical energy 28 . 30 feed their electrical energy into the power grid 10 to which the electricity consumers 16 are connected.

The individual recipients of electrical energy 12 . 14 each have a central control device 32 on. The function of this central control device 32 is described below using the example of the private household 12 out 2 explains:
The control device 32 is with the central power supply line 10 (House connection) connected as well as with the data network 26 , Starting from the central control device 32 branch with the power supply line 10 connected power lines 34 in the private household 12 towards the individual power consumers 16 , The power lines 34 each end at the individual power consumers 16 assigned, local control units 18.1 . 20.1 . 22.1 . 24.1 ,

The central control device 32 has different tasks.

On the one hand, the control device 32 a computing device that over the data network 26 with the providers of electrical energy 28 . 30 connected or connectable. Depending on the current and / or future power consumption of the private household 12 the controller is trying 32 at the various providers of electrical energy 28 . 30 to buy the electricity as cost-effectively as possible.

In addition, the central control unit purchases the goods 32 on an electronic auction platform, where the various electric energy providers 28 . 30 make their offers available, a certain amount of electrical energy or energy of certain power, in particular certain minimum or maximum power, as cost-effective and optimized according to various, at the control device 32 by an operator presettable criteria.

By electronic means will be between the selected provider 28 . 30 and the purchaser of electrical energy 12 automatically set all delivery conditions, such as the amount of ordered energy, the time at which the energy is to be made available (delivery time), the price, the performance and the like.

The auctioned electric energy is the household 12 then automatically made available at the desired time and with the agreed characteristics, in particular in the power grid 10 fed. The central control device 32 monitors during the subsequent delivery whether the specified delivery conditions or the agreed characteristics of the electrical energy are met.

alternative Of course, too, a purchase of electrical energy can an automatic ordering of electrical energy at or at multiple providers take place without a regular auction takes place. Here are many options conceivable, as the person skilled in the art recognizes.

The central control device 32 In addition to the automatic requirement of electrical energy from the energy providers has other tasks. So monitors the central controller 32 the power consumption of the individual power consumers 16 and the total electricity consumption of the entire group of electricity consumers 16 , To do this, send the local ECUs 18.1 . 20.1 . 22.1 . 24.1 the control device 32 corresponding consumption signals of the individual power consumers 16 ,

If the cumulative power consumption of the group of electricity consumers 16 one from an operator on the controller 32 exceeds a presettable threshold, such as a previously unused device of the group is turned on by an operator, the controller switches 32 automatically another or several other of the power consumers 16 decreases or throttles their consumption.

When the power consumption of the group of electricity consumers 16 again falls below the limit at a later time, the controller switches 32 the meantime switched off power consumers 16 again or increases its power consumption back to the initial value.

To carry out the control of the power consumers 16 in the aforementioned manner, the central control device sends 32 the local control units 18.1 . 20.1 . 22.1 . 24.1 the individual power consumer 16 corresponding signals. The local controllers 18.1 . 20.1 . 22.1 . 24.1 set these signals accordingly in on or off signals for turning on or off the power consumers 16 around or into signals to reduce or increase their power consumption. Which of the electricity consumers 16 be switched off or at which power consumers 16 The power consumption is throttled, can also be preset.

The central control device 32 controls the electricity consumers 16 furthermore dependent on data representing the current electricity price and / or the future electricity price. At daytime or nighttime, when the electricity price is comparatively high, individual electricity consumers become 16 switched off, at day or night, at which the electricity price is comparatively low, become individual power consumers 16 turned on.

The control algorithms according to which the control device 32 the control operations of the group of electricity consumers 16 performs, as the skilled person recognizes be formed in various ways.

For example, it can also be provided that the control device 32 the total power consumption of the group of electricity consumers 16 or whose power consumption is limited to a value of one of the control device 32 at the providers 28 . 30 ordered maximum power corresponds. When the controller 32 For example, it was set to order power with a maximum power of 2000 watts, can be provided, the group of power consumers 16 to control so that this consumes only a maximum of 2000 watts.

The in-house network is finally an energy storage 36 , For example, a battery connected.

This energy storage 36 can be filled at times when the electricity is particularly cost-effective to obtain. This is from the power grid 10 originating from the central control device 32 ordered electrical energy to the energy storage 36 which, if necessary, converts it into another form of energy for storage.

At times when electricity can only be obtained at particularly high prices, individual consumers can 16 , but also the central control device 32 , with out of the energy storage 36 derived energy. For this purpose, the stored energy - if necessary - optionally converted back into electrical energy and the consumers 16 fed.

The energy storage 36 in particular has the task of a buffer, in addition to the supply of electricity consumers 16 also the power supply of the control device 32 can ensure, if it does not succeed for long periods, to order suitable amounts of electrical energy or appropriate supply contracts with the suppliers of electrical energy 28 . 30 complete.

10

Power supply network

12

household

14

industrial consumers

16

electricity consumers

18

stove

18.1

local control unit

20

freezer

20.1

local control unit

22

Washing machine

22.1

local control unit

24

heat pump

24.1

local control unit

26

Data network

28

wind farm

30

Thermal power plant

32

control device

34

power line

36

energy storage

36.1

local control unit

Claims (21)

Method for requesting and providing electrical energy, in particular a specific amount of energy and / or energy of particular power, for one or more, to a power supply network ( 10 ) connected power consumers ( 16 ), the method comprising the steps of: a) a power consumer ( 16 ) assigned arithmetic device ordered - preferably auctioned - automatically based on predetermined characteristics electrical energy of an energy supplier ( 28 . 30 ), in particular a certain amount of electrical energy or electrical energy of certain power, in the context of an electronic ordering process, preferably in the context of an electronic auction, b) the ordered electrical energy is then preferably automatically connected to the power grid ( 10 ) connected power consumers ( 16 ), in particular into the electricity supply network ( 10 ) fed. Method according to claim 1, characterized in that one or more suppliers of electrical energy ( 28 . 30 ), in particular one each to the energy provider ( 28 . 30 ) associated computing device, via a data network ( 26 ) with the electricity consumer ( 16 ) associated computing device, preferably via the Internet or via the power grid ( 10 ). Method according to claim 1 or 2, characterized in that one or more suppliers of electrical energy ( 28 . 30 ) over the data network ( 26 ) with the electricity consumer ( 16 ) exchange data, the provider ( 28 . 30 ) and / or the electricity consumer ( 16 ) associated computing device provides data signals, in particular transmitted to the respective other party, representing an offer for the conclusion of a supply contract for the electrical energy, preferably on the orderable or desired amount or power of electrical energy. Method according to claim 3, characterized in that the suppliers of electrical energy ( 28 . 30 ) or the electricity consumer ( 16 ) associated computing device send a signal to the other party, which represents the acceptance of the offer signal when the offer signal corresponds to predetermined criteria. Method according to one or more of the preceding claims, characterized by the following steps: a) the power consumer ( 16 ) or the provider of electrical energy ( 28 . 30 ) provides, during a first time period T1, an offer A1 corresponding to predetermined criteria, in particular with regard to the energy quantity price of the desired or ordered energy, b) if, after expiry of the time period T1, by one or more of the suppliers of electrical energy ( 28 . 30 ) or by the power consumer ( 16 ) has been provided to the offer A1 matching acceptance signal, provides the power consumer ( 16 ) or the provider of electrical energy ( 28 . 30 ) provides a further offer A2, which corresponds to changed criteria, during a second time period T2, whereby the offer A2 preferably has an increased or decreased energy quantity price compared to offer A1. Method according to one or more of the preceding claims, characterized that the offer signal the price of the amount of energy and / or the Price represents the amount of energy per unit time, and / or the amount of energy per Time unit (power), with the desired amount of energy ready is to be asked, and / or the time and / or duration, to which the amount of energy should be provided. Method according to one or more of the preceding claims, characterized in that characteristic data of the energy provider ( 28 . 30 ) supplied electrical energy, in particular the time of energy supply, the total amount of energy supplied, the amount of energy per unit time of the energy supplied or the like, are monitored, preferably by means of the power consumer ( 16 ), central control device. Method for automatically controlling a Group of electricity consumers ( 16 ) - in particular by means of a central control device which operates in accordance with the method of claims 1-7 -, characterized in that the current total power consumption of the group is determined and depending on this consumption value one or more of the power consumers ( 16 ) and / or that one or more of the power consumers ( 16 ) of the group are dependent on data representing the current or future electricity price, preferably by one or more of the electricity consumers ( 16 ) are switched on or off or by their power consumption is increased or throttled. Method according to one or more of the preceding claims, characterized in that one or more of the power consumers ( 16 ) are switched on or off or that their power consumption is increased or throttled when the total power consumption exceeds a predetermined limit. Method according to one or more of the preceding claims, characterized in that one or more of the power consumers ( 16 ) are controlled so that the total consumption follows a predetermined time function, preferably by one or more of the power consumers ( 16 ) are switched on or off or by their power consumption is increased or throttled. Method according to one or more of the preceding claims, characterized in that, depending on the time, one or more of the power consumers ( 16 ) are switched on or off or that their power consumption is increased or throttled. Method according to one or more of the preceding claims, characterized in that the data representing the electricity price from one of the central control device ( 32 ) memory are read out. Method according to one or more of the preceding claims, characterized in that the central control device ( 32 ) the data representing the electricity price are supplied by remote data transmission, in particular via the Internet. Method according to one or more of the preceding claims, characterized in that one to the group of electricity consumers ( 16 ) connected energy storage is filled depending on the time and / or depending on the current and / or future electricity price by means of electrical energy from a power grid ( 10 ), to which the group of electricity consumers ( 16 ) connected. A method according to claim 14, characterized in that the energy storage in particular depending on the time and / or depending on the current and / or future electricity price electric power to one or more power consumers ( 16 ) of the group of electricity consumers ( 16 ). System for carrying out the method according to one or more of the preceding claims 1-15, having one or more, preferably a group of electricity consumers ( 16 ), with at least one power consumer ( 16 ) associated computing device, which is preferably part of a power consumer ( 16 ), central control device ( 32 ), with at least one or more electric energy providers ( 28 . 30 ) associated computing device, wherein the power consumer ( 16 ) and the provider of electrical energy ( 28 . 30 ) associated computing device with a common data network ( 26 ) are connectable or connected, and to a power supply network ( 10 ), into the electrical current of the provider ( 28 . 30 ) and to which the power consumer ( 16 ) connected. System, in particular according to claim 16, for carrying out the method according to one or more of the preceding claims 1-15, characterized by a group of to a power supply network ( 10 ) connected power consumers ( 16 ) and at least one central control device assigned to the group ( 32 ), whereby by means of the central control device ( 32 ) a) the current total electricity consumption of the group can be determined and, depending on this consumption value, one or more of the electricity consumers ( 16 ) of the group are controllable, and / or b) one or more of the electricity consumers ( 16 ) of the group are dependent on data representing the current or future electricity price, preferably by one or more of the electricity consumers ( 16 ) are switched on or off, or by their power consumption can be increased or throttled. System according to claim 17, characterized in that the system is connected to each of the power consumers ( 16 ) associated consumer control devices ( 18 . 1 . 20 . 1 . 22 . 1 . 24 . 1 ) having. System according to claim 17 or 18, characterized in that the central control device ( 32 ) is associated with a computing device having an interface for connection to a Data network ( 26 ), especially to the Internet. System according to one or more of the preceding claims, characterized in that the central control device ( 32 ) and the electricity consumer ( 16 ) an energy storage or energy buffer are assigned, in particular a battery or a rechargeable battery, by means of electrical energy of the power supply network ( 10 ) is filled and its stored energy as electrical energy directly to the power consumer ( 16 ) and / or the central control device ( 32 ) can be fed. Control device, which is designed to carry out the method according to one or more of the preceding claims, preferably with a computing device which is connected to a supplier of electrical energy ( 28 . 30 ) associated computing device via a common data network ( 26 ) is connectable.