DE102010006142A1 - Energy portal for controlling and/or regulating energy supply in power distribution network of wind power plant, has control device controlling and/or regulating parameters as variables based on variables, factors and information - Google Patents

Abstract

The portal (1) has a receiving device (10) receiving predetermined supply factors of a power distribution network operator, and another receiving device (20) receiving measuring variables of power generators (230-250). A prognosis information receiving device (30) receives prognosis information, and an evaluation device (40) evaluates the variables, factors and information. An operational parameter-control device (50) controls and/or regulates operational parameters of the power generators as control variables on the basis of the evaluated variables, factors and information. The prognosis information is selected from requirement prognosis information, supply history prognosis information, weather prognosis information, power prognosis information and operating prognosis information. An independent claim is also included for a method for observing supply factors of a power distribution network operator during energy supply from a power generator into a power distribution network.

Description

Field of the invention

The present invention relates to an energy portal, and in particular an energy portal for controlling or regulating an energy supply from a generator network in an energy distribution network, whereby vorgebare feed factors can be met to comply with regulatory requirements.

Background of the invention

Distributed electrical energy generated, such as electrical energy from wind turbines, biogas or photovoltaic systems, is fed into the public networks of the distribution system operators or transmission system operators (TSOs). As a rule, the feed-in takes place in the medium or high-voltage levels of the distribution system operators. The rated voltage of the medium-voltage networks is provided in the range from 6 KV to 30 KV. The voltage levels of the high voltage networks are usually 110 kV. In rare cases, it is fed into the maximum voltage level at, for example, 220 kV or 400 kV.

The point at which a company feeds electrical energy into the network of a distribution system operator is referred to as a grid connection point NVP. The requirements and rules for the supply of decentrally generated electrical energy to a grid connection point of the distribution system operator are regulated in a grid feed-in contract between the distribution system operator and the operator of the power generation grid. Furthermore, grid connection guidelines of the distribution system operator must be adhered to. The Grid connection guidelines and the grid feed-in contracts, as well as the EEG (Renewable Energies Act01.01.2009) Thus, among other things, they regulate the electrical behavior of the operator's installations at the grid connection point. Among the generally valid electrical variables include, among other things, the amount of electrical power fed in, which may be contractually limited in their amount, for example. For reasons z. In addition, network utilization of the distribution system operators requires a variable setting of the maximum energy input at specific times. This is referred to as generation management or feed-in management (Eisman).

In addition, compliance with a power factor is regulated at the grid connection point. The power factor can be specified in different physical quantities by the distribution system operator. As a rule, a variable power factor is agreed as cosφ (over- or under-excited size). If several decentralized electrical energy producers, such as wind farms with one or more wind turbines, feed their energy into a grid connection point, the contractually regulated electrical quantities at the grid connection point must be adhered to. It should be noted that all components are considered that have an influence on the electrical quantities at the network connection point. In addition to the generators of, for example, wind turbines, the components also include the cable systems and required transformers. This whole is referred to as grid connection system.

Since 1.1.2009 this is Renewable Energy Law (EEG) amended came into force. The amendment includes, on the one hand, the obligation to equip generating plants with certain electrical properties (so-called ancillary services) under certain conditions. In certain connection situations, it may be necessary to install capacitive or inductive modules at the grid connection point. In turn, these modules are to be controlled at the network connection point in coordination with the output quantities of decentralized generators. On the other hand, the EEG offers the possibility of free marketing of generated active work in the national electricity trade. Basically, the remuneration of injected electrical energy takes place at the grid connection point of the distribution system operator. The tempered electrical quantity is the active work in KWh.

In order to control the energy supply from a power generation network into a network of the distribution system operator, energy portals are used. Such energy portals are described for example in Windkraftjournal, issue 1/2007, pages 58 to 61, and issue 4/2008, pages 40 to 41 ,

In addition, for example, methods and a system for predicting solar energy production are known DE 60 2004 010 281 T2 ,

Summary of the invention

It may be considered as an object of the present invention to provide an energy portal capable of adapting the operation quantities of a power generation network based on various information to comply with predetermined injection factors while optimizing a real power and reactive power injection (power factor) power distribution network.

The present invention relates to a device in the form of an energy portal, an associated method, a computer program and a computer-readable storage medium, according to the independent claims, wherein further embodiments are embodied in the dependent claims. It should be understood that the embodiments of the invention described below relate equally to the apparatus, method, computer program and computer-readable storage medium.

According to one embodiment of the invention, an energy portal is provided for controlling a power feed from a generator network to a power distribution network, the power portal comprising: a feed factor receiving device for receiving predetermined feed factors of a power distribution system operator, a generator size receiving device for receiving measurements of a generator network, a forecast information receiving device for receiving forecast information, an evaluation device for evaluating the measured variables, feed factors and forecast information, and an operating parameter control device for controlling operating parameters of the generator network on the basis of the evaluated measured variables, feed factors and forecast information with the feed factors as controlled variable.

In this way it can be achieved that the z. B. energy distribution network operator predetermined feed factors can be met, or these feed factors are met as accurately as possible, to allow in this way an efficient feed. In the context of the predeterminable feed-in factors given in the context of the permissible maximum feed, this allows the highest possible proportion of energy to be fed into the energy distribution network, which contributes to the grid stability of the energy distribution network.

According to an embodiment of the invention, there is provided an energy portal in which the generator grid measure receiving means is arranged to receive reactive power measurements of the generator grid, the operating parameter controller being adapted to dynamically control reactive power compensation.

In this way, a changing reactive power component can be dynamically balanced so that the energy fed in has the highest possible active component, which is decisive for the efficiency of the energy feed.

According to one embodiment of the invention, there is provided an energy portal in which the generator grid measurer is adapted to receive generator grid metrics of a plurality of subgenerator networks.

In this way, the energy portal can also manage multiple producer networks, referred to herein as subgenerator networks, at a network connection point. This is particularly relevant if the multiple sub-generation networks are geographically different, and are exposed to a different wind situation, for example, in wind farms.

According to one embodiment of the invention, there is provided an energy portal in which the operating parameter control device is adapted to control operating parameters of the generating network based on respectively required reactive power compensation of different sub-generating networks depending on the respective energy provided by the sub-generating networks.

In this way, in particular an adaptation of the necessary reactive power compensation can be achieved with geographically different sub-generation networks, which have different reactances due to, for example, different lengths of leads to the network connection point. If, at these different reactances, different wind situations also exist geographically, the necessary reactive power compensation in the dependence varies not only from the subgenerator network but also from the prevailing wind situation there, so that a correspondingly dynamic adaptation of the reactive power compensation depending on the respective Sub-generation networks provided energy can be made.

According to one embodiment of the invention, an energy portal is provided in which the feed-factor receiving device is designed for the repeated or cyclic or dynamic reception of predefinable feed-in factors of an operator of the energy distribution network.

In this way, the generator network or the plurality of sub-generator networks can be dynamically adapted to the changed feed factors of the operator of the power distribution network, without the risk to leave the permitted feed factor range with changing feed factors with the operating parameters and thus a shutdown of the generator network or more Escape sub-producer networks.

According to an exemplary embodiment of the invention, an energy portal in which the generator set measurement quantity receiving device is designed to receive manufacturer-specific measured variables of a generator network.

Since components or modules of different manufacturers can be located in a generator network or, in the case of different sub-generator networks, these can be dominated by different manufacturers, the generator-specific measured variables can be dynamically entered into with such a generator network measurement receiver, for example, different data formats and different Reference variables may have. In particular, the measured variables can also be present, for example, in different measuring intervals or have formats that are designed manufacturer-specifically, so that such differences can also be compensated with such a generator set measuring quantity receiving device. This can be realized, for example, with different manufacturer-specific program elements, or with a database with manufacturer-specific data records, which can serve as a basis for further processing. According to one embodiment of the invention, there is provided an energy portal in which the forecast information receiving apparatus is configured to receive information from a group of forecast information, the group consisting of demand forecasting information, feed-in history forecasting information, power forecasting, work forecasting, and weather forecasting information.

In this way, the energy portal can respond to an impending change in power generation based on a predicted change. In particular, appropriate preparations or adjustments can be made, which can react quickly, for example, to a changed need. Similarly, a prognosis can be derived from the feed-in history, on the basis of which a modified or energy provision can be made. In weather-dependent power generation networks, especially in wind power plants, the feed-in forecast is an important piece of information on the basis of which the scope of possible energy production in the near to medium future can be estimated. Of course, the different prognosis information can also be considered and processed in combination.

According to one embodiment of the invention, an energy portal is provided in which the generator grid has at least a portion of wind generating components, the generator grid measuring apparatus being configured to receive wind turbine measured quantities.

In this way, it is possible in particular to discuss the particular measured variables present in wind turbines in order to be able to carry out a corresponding regulation or control of the operating parameters.

According to one embodiment of the invention, a method is provided for compliance with feed-in factors of an energy distribution system operator when feeding energy from a generator network in an energy distribution network, the method comprising: receiving predeterminable feed-in factors of an energy distribution system operator, receiving measurements of a generator network, receiving prognosis information, evaluating the measured variables , the feed factors and the forecast information, and controlling or regulating operating parameters of the generator network on the basis of the evaluated measured variables, feed factors and forecast information with the feed factors as the controlled variable.

In this way, a method can be provided which can comply with the feed-in factors of an energy distribution system operator, in order to be able to carry out a more optimized energy supply in order not to run the risk of disconnecting the producer network or sub-producer networks from the grid by the energy distribution system operator and in this way can no longer feed energy into the supply network.

According to one embodiment of the invention, a computer program is provided which, when executed by a processor, is adapted to implement the method of maintaining feed factors of e.g. B energy distribution system operator.

In this way, the different specified steps of the method for compliance with feed-in factors of an energy distribution network operator can be executed via software or program modules, in order to be able to implement implementability on different computer platform forums in this way.

According to one embodiment of the invention, a computer-readable medium is provided on which the computer program according to the invention is stored.

According to one embodiment of the invention, a use of the method or the device for maintaining feed-in factors of an energy distribution system operator in one A power generation network specified with at least a portion of wind power generation components, the forecast information comprising a weather forecast.

Of course, the individual characteristics given may also be combined with one another, which may in some cases also result in advantageous effects which exceed the sum of the individual effects.

These and other aspects of the present invention are illustrated and clarified by reference to the exemplary embodiments hereinafter described.

Brief description of the drawings

Exemplary embodiments will be described below with reference to the following drawings.

1 shows a schematic overview of a feed-in situation at a grid connection point.

2 shows a schematic overview of an energy portal according to the invention according to an exemplary embodiment.

3 shows a further schematic overview of an energy portal in the environment of a power feed situation with multiple sub-generation networks.

Detailed description of exemplary embodiments

Based on 1 For example, the feed-in situation in a power grid is described. In this case, the energy is fed into a power generation network 230 . 240 . 250 into a power grid 105 via a substation 100 , This substation is used to feed the generated electrical energy into the network of a distribution system operator. For this purpose, for example, a substation is built with a grid connection point on the 110 kV level, in which a transformer 120 provided that the 110 kV network with the network connection point 110 on the one hand and the entry points on the 20 KV side on the other hand. In doing so, the energy of different sub-generation networks 230 . 240 . 250 fed, which may be wind farms, for example. The feed-in is made on the 20 kV level, whereby the feed-in via corresponding grid connection points 130 . 140 . 150 in the substation 100 he follows. These network connection points 130 . 140 . 150 are each the sub-power generation networks 230 . 240 . 250 assigned. These network connection points 130 . 140 . 150 for example, via a busbar 125 to the transformer 120 coupled. Parallel to this, you can connect to the same busbar 125 capacitive or inductive power 160 be coupled to reactive power compensation, which can be switched on completely or variably as needed. The sub-power generation networks 230 . 240 . 250 For example, in the region of the substation 100 be located and the energy generated by it locally in the substation 100 feed. The operator of the power distribution network 105 can thereby make specifications that must be complied with by the power feeders, so that a stable network management in the power distribution network 105 can be guaranteed. If, for example, the operator of the substation of the network operator of the power distribution network 105 prompted at any time to reduce the electrical power, so this request is made by, for example, an electrical signal. This signal can be passed on, for example, to the main computer of the wind farms, which likewise reduces the power to the required value. This will be explained later with reference to 3 described in more detail. It should be understood that various switchgear typical devices in the in 1 shown circuit diagram of the substation are not shown, in particular, no transducers for measuring the voltage or the current are located, nor circuit breakers or disconnectors are located, which are of course available in each substation.

2 shows an exemplary sketch of an energy portal 1 according to an exemplary embodiment. The energy portal knows that 1 a receiving device 10 for receiving predeterminable feed-in factors of a z. B. Power distribution network operator, over which the power distribution network operator, the specifications or the feed-in rules can be received, to which the power generator and the Eingeiser has to comply. Here it should be understood that as a power distribution network operator, a private operator or any other operator can be seen. In addition, in the energy portal is a receiving device 20 provided for receiving measured variables of a generating network, this receiving device being connected by information technology to the different generator networks or generators 230 . 240 . 250 , The generator size receiving device receives from the different generator power supplies or generator networks 230 . 240 . 250 corresponding measured variables that provide information about the state of the corresponding subnetwork. Furthermore, the energy portal has a forecast information receiving device 30 on, over which prognosis information can be received. These Forecast information may, for example, receive a demand forecast, history information or weather forecast. In this case, the forecast information receiving device 30 For example, be connected to a weather service, with respect to the sub-networks 230 . 240 . 250 according geographic diversified relevant weather information provides, from which then a corresponding forecast can be derived. Further, the prediction information receiving device 30 to use a database that, for example, contains a feed-in history or makes a demand forecast based on historical data and, if necessary, takes into account factors that influence further. It is not excluded that between the information base, for example, the online weather service or the database, an additional processing unit is provided, which prepares the corresponding information such that a prognosis information can be provided. Such stretching performance can occur both inside and outside the forecast information receiving device 30 to be provided.

The energy portal also has an evaluation device 40 which receives data from the feed factor receiving device 10 , the producer grid size receiver 20 and the forecast information receiving device 30 , The evaluation device 40 evaluates the measured variables, feed factors and the prognosis information in order to be able to provide corresponding control information on the basis of an operating parameter control device in order to use the energy portal in the energy portal 1 provided operating parameter control device 50 to be able to make a control or regulation of operating parameters of the generator networks on the basis of the evaluated measured variables, feed factors and forecast information, wherein the feed factors are used as a controlled variable. In this case, the operating parameter control device outputs corresponding control signals to the power generation networks or sub-energy generator networks 230 . 240 . 250 on the basis of which the supply via a substation 100 into the power distribution network 105 can be made.

It should be understood that the in 2 arrows with a simple line represent an information flow, while the double lines represent an energy flow.

Analogous to the components 10 . 20 . 30 . 40 and 50 runs a corresponding method from, accordingly Einspeisefaktoren a z. B. Power distribution network operator, measured variables of a generator network are received and forecast information is received, then an evaluation of the variables, the feed factors and the forecast information is carried out, so that subsequently a control or regulation of operating parameters of the generator network on the basis of the evaluated parameters, feed factors and prognosis information can be made, with the feed factors serve as a controlled variable.

With reference to 3 Now, with reference to an exemplary embodiment of the invention, the feed-in operations will be described in more detail.

3 shows schematically the signal and energy flows, the signal flows are shown by dashed lines, while the energy flows are represented by double lines.

In the 3 shown substation configuration, in particular with the arrangement and positioning of the switches and separating elements is merely exemplary and may of course be designed differently, in particular, this is not relevant to the energy management aspect of the invention, but is used for better understanding.

In 3 is a substation 100 represented in which the network connection point 110 for the power distribution network 105 located. The network connection point 110 is from the power distribution network 105 separated by a switch 113 , which may be provided as a series circuit of a circuit breaker and corresponding circuit breaker. The network connection point 110 has a voltage transformer 111 and a current transformer 112 on, these two converters 111 . 112 provide appropriate metrics that can be provided to the energy portal in addition to the measures of the producer networks. In particular, it can be checked at this point whether the feed-in factors are complied with. On the z. B. Undervoltage side is a busbar 125 provided by a switch arrangement 123 with the transformer 120 connected is. The switch arrangement 123 may in turn consist of a series connection of circuit breakers and disconnectors. To the busbar 125 can have different power grids 230 . 240 are connected via corresponding network connection points 130 . 140 on the low voltage side. These network connection points 130 . 140 in turn, via appropriate switch arrangements 133 . 143 analogous to the switch arrangements 123 to the busbar 125 be coupled. At the corresponding network connection points 130 . 140 can turn current transformers 132 . 142 as well as voltage transformers 131 . 141 be provided to provide appropriate information to the energy portal 1 provide as a basis for the regulation or control of Energy distribution networks or their operating parameters can be used. The different power generation networks 230 . 240 are over lines 235 . 245 to the substation 100 coupled. These lines can sometimes have very different lengths and thus very different impedances. For example, the line 235 have a length of about 10 km while the line 245 can only have a length of about 3 km, resulting in different impedance for the leads that cause different reactive power values due to different performance of sub-networks. The different power generation networks 230 . 240 can themselves turn different wind generators 231 . 232 respectively 241 . 242 have, via appropriate lines 233 . 243 coupled to each other in this way the energy generated via the corresponding supply lines 235 . 245 to deliver to the substation. In this case, in the corresponding power generation networks 230 . 240 a so-called master plant 231 . 241 be provided, which can ultimately be used representative as a signal receiving device or as a measuring point. This master system 231 . 241 can do this via an appropriate transfer box 234 . 244 be informally linked to the energy portal, so that energy portal via this transfer box with the appropriate masters 231 . 241 can communicate. By way of example, a corresponding measured value information can also be forwarded to the energy portal via this transfer box. The energy portal 1 in turn, receives from an operator 106 of the power distribution network 105 corresponding information regarding feed factors, for example, in a central computer 70 can be processed. Within this calculator 70 can do the in 2 shown components 10 . 20 . 30 . 40 and 50 be realized, for example, by different components or by one of these components 10 . 20 . 30 . 40 and 50 be realized covering software. For this purpose, a corresponding auxiliary or documentation device 60 be provided, which logs according to measured values of different network connection points on both the high voltage side and the low voltage side and collected this information to the central processing unit 70 can pass on.

For example, the substation 100 from the network operator 106 of the power supply network 105 prompted at any time to reduce the electrical power, this request is made by an electrical signal between the operator 106 and the energy portal 1 , This signal can be passed, for example, to the host computer of the wind farms, these host computers in the transfer box 234 . 244 can be realized. In this way, the appropriate power generation networks 230 . 240 directed by, for example, the master 231 . 241 reduce or increase the energy or the output to the required value.

However, if one of the wind farms or sub-energy generation networks 230 . 240 does not respond to this control signal, so there is no power reduction, so that the operator 106 for example, the entire energy supply via the substation 100 disconnect from the grid, so not only the unresponsive wind farm, such as the wind farm 230 taken from the grid, but also the properly operating wind farms 240 , The same principle applies, for example, to the maintenance of a power factor at the corresponding network connection point 110 ,

To achieve a given power factor at a network connection point 110 It is necessary to take into account the power factor and the electrical variables affecting it. These electrical variables can be, for example, the reactances of the cable systems 235 . 245 and the transformers between the generators and the mesh nodes 130 . 140 be. This applies in particular to different or different length cable connections of two wind farms. In certain connection situations, additional inductive or capacitive components can be used 160 be necessary, which are coupled to the network connection point to ensure the rule request at the network connection point. For this purpose, for example, to the busbar 125 a corresponding reactive power compensation device 160 be coupled, for example via a switch assembly 163 ,

Against the background of these considerations, it is therefore necessary to measure the electrical behavior of the feeding wind farms in the substation. The feeding wind farms have their grid connection points 130 . 140 at the entrance of the 20 KV supply in the substation. The maximum reactive power amount given by the network operator is at, for example, the 110 KV grid connection point 110 and is influenced by the reactances of the wind farms and the substation. So it is with regard to the 110 KV grid connection point 110 to look at the entire grid connection system and to regulate it accordingly. In this case, the different reactance of the corresponding supply lines 235 . 245 are superimposed by the different wind situation at the corresponding wind farms 230 . 240 so that the necessary reactive power compensation via a corresponding investment 160 depends on both the line configuration 235 . 245 as well as the corresponding wind situation in the wind farms 230 . 240 , The central computer 70 in the energy portal 1 can be a corresponding control of the reactive power compensation 60 to make a dynamic reactive power adjustment.

For the direct marketing of electrical energy, it is necessary to forecast the amount of electricity at certain times of the day. For this purpose, it is necessary to receive information at the network connection point, to process, to send and, if necessary, to carry out control interventions. For this purpose, for example, via one or more external database 31 corresponding forecast information is provided in the central computer 70 can be fed. On the basis of this prognosis information, for example a weather forecast, a demand forecast or also feed-in report-based forecast information, a corresponding regulation of the generation networks can be made 230 . 240 be made. These forecast data can be stored in appropriate computer or program modules that are in the central computer 70 be provided can be managed accordingly. If appropriate, the corresponding prognosis data can be processed and evaluated in a more integrated manner, so that a corresponding need for a control or regulating intervention results from this.

In the documentation module 60 can thereby record the electrical parameters of the network distribution points 110 . 130 . 140 respectively. Furthermore, the electrical power can be determined and documented there, as well as the electrical work with regard to the network connection points in the case of corresponding rule violations. In the control computer or controller 70 In this case, the command acquisition can be carried out by the distribution system operator and a corresponding feedback to the distribution system operator, a command output to the master invoice of the feed or the transfer boxes, or other signal transmitter an acceptance of the available services of the Einsgeiser or a comparison of the required and the delivered values of the services. Furthermore, the power factor between actual and desired can be adjusted at the grid connection points and a corresponding regulation of the power factor by the request for reactive power. Furthermore, in the control computer and the controller, a request for further power reduction in case of rule violations or a balance of the available amount of energy or amount of power can be done. In a forecasting tool implemented in the control computer or controller, a recording of weather forecasts, a recording of availability of the singers, a recording of supplied energy quantities, a calculation of delivery forecasts or an output of delivery forecasts in standardized data formats can take place. The forecasting tool can also be executed as a separate forecasting tool within the energy portal.

In summary, the function of the energy portal can be described in such a way that a measurement value recording of the electrical quantities is made with respect to all relevant network connection points and these measured values are documented over any periods of time if required. These measured values are, for example, the current and the voltage at the network connection points. From these quantities all relevant electrical units can be calculated.

In addition, from the energy portal signal size for power reduction of z, B. distribution network operator and the signal magnitudes to the power factor of z. B. distribution system operators are received and given a corresponding feedback of the signal sizes for power reduction or power factor to the distribution system operator. Furthermore, the signal sizes for power reduction or power factor can be given to the feeding sub-networks and appropriate control commands to the stationary reactive power device 160 be issued. Furthermore, signal quantities regarding the available power can be received by the encoder and other signal variables such as the wind speed of a wind farm or the availability of a wind farm, as well as weather forecasts and corresponding delivery forecasts can be output. The transmission of the signal quantities can take place in any form, for example via current interfaces, a binary signal output or any command or information protocols.

The power control can be done as a constant balance between the target and the actual power through the energy portal. When requesting a power reduction by the z. B. Distribution system operators, the services of the Einsgeiser can be monitored for compliance with the power reduction. If one or more sinners do not follow the reduction in performance and there is a breach, ie a breach of contract, the corresponding reducers of the power reduction at the grid connection point of the distribution system operator can be reduced so that the maximum power of the distribution grid operator reduced by the requested power reduction is maintained. This can also be done by, for example, the corresponding sub-power generation network 230 on the part of the Substation operator is taken singularly from the network before z. As the distribution system operator, the entirety of the sub-power distribution networks 230 . 240 at the network connection point 110 taken in its entirety from the network.

At the same time, a record of the additionally reduced services can be recorded as value determination with a time stamp of the additional power reduction of further feeders or the infringer infringing the contract, in order to be able to make a corresponding set-off of the owed electrical work or the due reduction of the electrical work. This can be done by a corresponding accounting tool of the energy portal. For reactive power control, a constant comparison of the setpoint and actual values of the power factor at the grid connection point of the distribution system operator and the grid connection points of the feeders can be carried out. In order to comply with the power factor, the energy portal can constantly regulate the master computers of the feeders by means of an appropriate value output and monitor the reactive power demand. If required, the control of stationary reactive power modules (continuously and stepwise) as well as their monitoring at the grid connection point can be carried out to maintain the power factor. For example, if one or more feeders do not provide the required reactive power demand, for example, a rule violation, i. H. there is a breach of contract, so that additional feeders can be asked to change the reactive power demand. If there is a relevant reactive power provision of one feeder to compensate for a rule violation of another, the reactive power provisions are provided with a time stamp and documented, so that a subsequent settlement of the different feeders can take place. Such a settlement of the owed electrical work can be done for example by a corresponding Verrechnungstool the energy portal.

Furthermore, the electrical power of the feeders can be recorded by the energy portal. When transmitting influencing variables, for example wind speeds, for the generation of energy by the master computer of the production plants, the energy portal can make calculations for the future. These trend calculations allow a conclusion on the actual performance of the power generation plant.

By means of a forecasting tool, for example, a forecast of the daily production can be made by taking into account wind forecasts. In addition, for example, an availability of the production facilities from, for example, historical data of the productions can be made in order to create a corresponding forecast. In this case, such predictions can be both automatically and manually influenced or corrected used for the control or regulating mechanism. The corresponding forecasts can, for example, also be forwarded (for example in standardized file formats) in order, for example, to make these available to a power trader.

It should be noted that the present invention, in addition to application in wind turbines, can also be used for example in photovoltaic or hydropower plants.

It should be noted that the term "comprising" does not exclude other elements or method steps, just as the term "a" and "an" does not exclude multiple elements and steps.

The reference numerals used are for convenience of reference only and are not to be considered as limiting, the scope of the invention being indicated by the claims.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 602004010281 T2 [0007]

Cited non-patent literature

• Grid connection guidelines and the grid feed-in contracts, as well as the EEG (Renewable Energies Act01.01.2009) [0003]
• Renewable Energy Law (EEG) [0005]
• Windkraftjournal, issue 1/2007, pages 58 to 61, and issue 4/2008, pages 40 to 41 [0006]

Claims (10)

Energy portal for controlling or regulating an energy feed from a generator network ( 230 . 240 . 250 ) into an energy distribution network ( 105 ), whereby the energy portal ( 1 ) comprises: a feed factor receiving device ( 10 ) for receiving predeterminable feed-in factors of a power distribution system operator, a generator grid measurement receiving device ( 20 ) for receiving measured quantities of a generator network ( 230 . 240 . 250 ), a forecast information receiving device ( 30 ) for receiving prognosis information, an evaluation device ( 40 ) for evaluating the measured quantities, feed factors and forecast information, and an operating parameter control device ( 50 ) for controlling or regulating operating parameters of the generator network on the basis of the evaluated measured variables, feed factors and forecast information with the feed factors as controlled variable. An energy portal according to claim 1, wherein the generator set measurement receiving apparatus ( 20 ) for receiving reactive power measurements of the generating network ( 230 . 240 . 250 ), wherein the operating parameter control device is adapted to dynamically control reactive power compensation. Energy portal according to one of the claims 1 and 2, wherein the generator set measurement receiving device ( 20 ) is adapted to receive generation grid metrics of multiple sub-generation networks ( 230 . 240 . 250 ). Energy portal according to one of claims 1 to 3, wherein the operating parameter control device ( 50 ) is designed to control operating parameters of the generator network on the basis of respectively necessary reactive power compensation of different sub-generator networks ( 230 . 240 . 250 ) depending on the respective energy provided by the sub-producer networks. Energy portal according to one of claims 1 to 4, wherein the feed factor receiving device ( 10 ) for repeatedly or cyclically receiving predefinable feed-in factors of an operator of the energy distribution network ( 105 ) is designed. An energy portal according to any one of claims 1 to 5, wherein the generator set measurement receiving device ( 20 ) is designed to receive manufacturer-specific measured variables of a generator network ( 230 . 240 . 250 ). An energy portal according to any one of claims 1 to 6, wherein the forecast information receiving apparatus ( 30 ) is arranged to receive information from one of a group of forecast information, the group consisting of: demand forecast information, feed history prediction information, weather forecast information, power prediction information, and work prediction information. Energy portal according to one of claims 1 to 7, wherein the producer network ( 230 . 240 . 250 ) at least a part of wind energy production components ( 231 . 232 . 241 . 242 ), wherein the generator set measurement receiving device ( 20 ) is adapted to receive wind turbine measurements. A method for compliance with feed-in factors of an energy distribution system operator when feeding energy from a generator network into an energy distribution network, comprising: Receiving predeterminable feed-in factors of an energy distribution system operator, Receiving measured quantities of a generator network, Receiving forecast information, Evaluation of the measured variables, the feed factors and the forecast information, Controlling or regulating operating parameters of the generator network on the basis of the evaluated measured variables, feed-in factors and forecast information with the feed-in factors as controlled variable. Use of the method according to claim 9 in a power generation network ( 230 . 240 . 250 ) with at least one part of wind energy production components ( 231 . 232 . 241 . 242 ), wherein the forecast information comprises a weather forecast, a performance forecast or a work forecast.

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