JP3806029B2 - Power generation control device for power consignment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a generated power control apparatus in power consignment from a private power generation facility by a specific scale electric power company.
[0002]
[Prior art]
The deregulation will start the partial liberalization of power retail, and it is possible to carry out power consignment to supply the power generated by private power generation facilities linked to the power grid to customers in other locations via the power company's transmission network It became. (At present, there is a restriction with special high-voltage customers.) A business that supplies power to consumers through this power consignment is called a specific-scale electric business, and a person who performs this business is called a specific-scale electric business. Specified-scale electric utilities are obligated to supply power generated or procured by contracted consumers, and are required to match the amount of transmitted power and the amount of power received by consumers. Specifically, it is said that the power amount for 30 minutes should match. This is called the same amount at the same time.
[0003]
As shown in FIG. 7, the basic configuration of the current grid-connected private power generation facility is composed of a generator 1, a prime mover 2, a speed governor 3, a power generation controller 4, and an automatic voltage regulator (AVR) 5. It is connected to the local system via the circuit breaker 6 and the circuit breaker 7, supplies power to the local load 8, and is connected to the power system via the circuit breaker 9. Moreover, the relay 10 which protects generator abnormality as a protective device, and the interconnection protection relay 11 for the interconnection protection with an electric power system are installed. In this system-connected private power generation facility, the generator output is controlled by the power generation controller 4, and the speed governor 3 is operated to follow the generated power command value to control the generator output. Here, regarding the generated power control, in the case of interconnection with reverse power flow, it is considered that the constant control of generated power is performed at a point where the power generation efficiency is good, considering the operation rate of the private power generation facility.
[0004]
[Problems to be solved by the invention]
In the grid connection with reverse power flow that sends power to the power grid, when constant control of generated power is performed, the power that becomes the reverse power flow (reverse power transmission) is the remaining power consumed by the premises load, and this is left to the job. It becomes. When considering the consignment of this reverse transmission power, it is impossible to satisfy the same amount as a specific scale electric power company with the current situation. Therefore, it is necessary to change the power generation control to a control for satisfying the same amount at the same time or to additionally install a control device for that purpose.
[0005]
The present invention has been made based on such circumstances, and the problem is that the power generation control device in the power consignment that satisfies the same amount by incorporating the power generation controller into the power generation controller or giving a command from the upper level to the power generation controller. It is to provide.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the present invention is characterized in that a power generation facility connected to an electric power system sends the generated electric power back to the electric power system and generates electric power from the power generation facility via the electric power system. In the power consignment system consisting of consumers who receive power supply,
Based on the amount of power transmitted back to the power grid by the power generation facility and the amount of power received by the consumer, the amount of power received in a predetermined time interval, and a predetermined amount of transmission loss power from the amount of power transmitted Sampling setting means for dividing the predetermined time interval by a predetermined sampling in order to match the electric energy excluding
Based on the received power amount , the transmitted power amount, and the predetermined transmission loss power amount measured for each section set by the sampling setting means, the received power until the current sampling from the start time of the predetermined time for each sampling An error correction means for compensating for an error in the next sampling section using an error between the power amount and the transmission power amount excluding a predetermined transmission loss power amount until the current sampling as an error correction value;
A received power amount prediction means for predicting a received power amount in the next sampling with a difference between a received power amount in the current sampling section and a received power amount in the previous sampling section as a fluctuation prediction value ;
An additional correction value for performing additional correction with a predetermined amount of power is provided,
Said error correcting means by for the sum of the received power amount prediction value by the reception power amount estimating means and the error correction value by adding the additional correction value, required transmission power amount by further adding a transmission loss amount of power equivalent Then, by averaging it with the sampling interval width, the transmission power command in the next sampling interval is obtained.
According to the first aspect of the invention, Ri Do is possible to control the supply-demand by setting the control of the supply-demand balancing in short sampling, also power a little excess to variations in received power by adding the correction value Ru can be power transmission.
[0007]
According to a second aspect of the present invention, the power generation facility connected to the power system reversely transmits the generated power to the power system, and is a power consignment consisting of a consumer who receives supply of the generated power from the power generation facility via the power system In the system,
Based on the amount of power transmitted back to the power grid by the power generation facility and the amount of power received by the consumer, the amount of power received in a predetermined time interval, and a predetermined amount of transmission loss power from the amount of power transmitted Sampling setting means for dividing the predetermined time interval by a predetermined sampling in order to match the electric energy excluding
Based on the received power amount, the transmitted power amount, and the predetermined transmission loss power amount measured for each section set by the sampling setting means, the received power until the current sampling from the start time of the predetermined time for each sampling An error correction means for compensating for an error in the next sampling section using an error between the power amount and the transmission power amount excluding a predetermined transmission loss power amount until the current sampling as an error correction value;
A correction coefficient that is a predetermined coefficient that is larger than 1 when the difference between the received power amount in the current sampling section and the received power amount in the previous sampling section is positive, and is smaller than 1 when the difference in received power amount is negative. When,
Received power amount prediction means for predicting the received power amount in the next sampling using a variation prediction value obtained by multiplying the difference between the received power amount in the current sampling interval and the received power amount in the previous sampling interval by the correction coefficient. Provided,
Wherein the error correcting unit by the error correction value and the received power amount predicting means required transmission power amount by adding the transmission loss amount of power equivalent to the sum of the received power amount prediction value by averaging it with the sampling interval width Thus, the transmission power command in the next sampling section is set .
According to the second aspect of the present invention, it is possible to control the same amount simultaneously by setting the control of the same amount to a short sampling, and the fluctuation of the received power can be obtained by multiplying the fluctuation amount of the received power by the correction coefficient. The power can be transmitted slightly excessively .
[0008]
According to a third aspect of the present invention, the power generation facility connected to the power system sends the generated power back to the power system, and the power consignment consists of consumers who receive the supply of the generated power from the power generation facility via the power system. In the system,
Based on the amount of power transmitted back to the power grid by the power generation facility and the amount of power received by the consumer, the amount of power received in a predetermined time interval, and a predetermined amount of transmission loss power from the amount of power transmitted Sampling setting means for dividing the predetermined time interval by a predetermined sampling in order to match the electric energy excluding
Based on the received power amount, the transmitted power amount, and the predetermined transmission loss power amount measured for each section set by the sampling setting means, the received power until the current sampling from the start time of the predetermined time for each sampling An error correction means for compensating for an error in the next sampling section using an error between the power amount and the transmission power amount excluding a predetermined transmission loss power amount until the current sampling as an error correction value;
A received power amount prediction means for predicting the received power amount in the next sampling using the difference between the received power amount in the current sampling interval and the received power amount in the previous sampling interval as a fluctuation prediction value;
The required transmission power amount is obtained by adding the amount corresponding to the transmission loss power amount to the addition result of the error correction value by the error correction unit and the received power amount prediction value by the received power amount prediction unit, and averaged by the sampling interval width In this case, the transmission power command in the next sampling section is set, but when the transmission power command in the next sampling section is larger than the transmission power command in the current sampling section, the control delay or dead band element of the power generator is A predetermined amount considered is added to the predicted amount of received power .
According to the third aspect of the present invention, the simultaneous equal amount control can be performed by setting the simultaneous equal amount control to a short sampling, and the shortage of the electric power command can be eliminated to compensate for the shortage of the electric energy amount .
[0009]
According to a fourth aspect of the present invention, in the generated power control apparatus in the electric power consignment according to the first aspect, the additional correction value is an additional correction every predetermined time in consideration of a daily fluctuation pattern of consumer received electric energy. The values are different values .
According to the fourth aspect, the error in the amount of received power can be reduced by the additional correction value.
[0010]
According to a fifth aspect of the present invention, in the generated power control apparatus in the power consignment according to the second aspect, the correction coefficient is calculated every predetermined time in consideration of a daily fluctuation pattern of consumer received power. It is characterized by having different values.
According to the fifth aspect, the prediction error of the received power amount can be reduced by the correction coefficient .
[0011]
According to a sixth aspect of the present invention, in the generated power control apparatus in the power consignment according to the second aspect , the difference between the actual values measured in the next sampling section is obtained from the predicted value of the received power amount in the next sampling section and predicted. If the cumulative value of the prediction error in all the sampling intervals within the predetermined time interval is positive, the error is reset to a value obtained by reducing the correction coefficient. If the cumulative value of the prediction error is negative, the predetermined time is reached. By resetting with the value which increased the said correction coefficient in the area, the value reset to the predetermined time area after a later day is used, It is characterized by the above-mentioned.
According to the sixth aspect, by adjusting the correction coefficient , it is possible to improve the prediction accuracy of the received power amount.
[0012]
A seventh aspect of the invention is characterized in that the predetermined time is 30 minutes in the generated power control apparatus for power consignment according to any one of the first to sixth aspects .
According to the seventh aspect, the same amount can be satisfied by setting the predetermined time to 30 minutes .
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Figure 1 is a basic configuration diagram of a power wheeling system.
As shown in the figure, in addition to the conventional private power generation facility of FIG. 7, the private power generation facility 100 includes a watt-hour meter 13 that detects the amount of transmitted power transmitted from the private power generation facility 100 to the power grid 300, and the power grid 300. A watt hour meter 23 for detecting the amount of received power received by the customer 200 is installed in the customer 200, and the transmission power amount detected by the watt hour meter 13 of the private power generation facility and the watt hour meter 23 of the consumer are detected. Based on the received power amount, a transmission power command required to satisfy the same amount simultaneously is determined, and the generated power control for power consignment that gives the generated power command to the power generation controller 4 so that the generated power satisfies the transmitted power. A device 12 is installed. Therefore, the power entrusted via the power system 300 is supplied to the load 21 via the circuit breaker 22. Note that, for example, a telephone line may be used as a communication means in order to transmit the information on the received power amount of the customer detected by the watt-hour meter 23 to the generated power control apparatus 12 for power consignment.
[0014]
FIG. 2 is a diagram for explaining a basic concept for achieving the same amount simultaneously in the power consignment system of FIG.
As shown in the figure, in the present embodiment, in order to satisfy the same amount of power to match the amount of power received by the customer for 30 minutes and the amount of power transmitted to the private power generation facility, the time of 30 minutes is divided every 5 minutes, for example. Therefore, the power command of the private power generation facility is determined by acquiring the consumer received power amount and the private power generation facility transmission power amount, and the generated power is controlled. PL in the figure represents the transition of customer received power.
[0015]
The current sampling interval is tn, the previous sampling interval is tb, and the next sampling interval is ta. Pb is an average value of customer received power determined from the transition of PL in the previous sampling interval (tb interval). Similarly, Pn represents the average value of the customer received power in the current sampling section (tn section). When the measurement value obtained by the watt hour meter 23 is acquired for each sampling, the power amounts at tb and tn can be regarded as Pb × tb and Pb × tn. Regarding the amount of transmitted power from the power plant, the amount of transmitted power at tb and tn can be expressed as Prb × tb and Prn × tn based on the measured value of the watt-hour meter 13. Prb and Prn mean transmission power commands at tb and tn. Similarly, Pra * also means a transmission power command at ta. If the loss rate γ (%) is used to subtract the transmission loss power amount from the transmission power amount, the power amount supplied to the consumer is Prb × tb × (1−γ / 100), Prn × tn × (1− γ / 100). Assuming that the first sampling interval of the 30-minute time interval is tb, if the error between the power amount on the demand side and the supply side until the current sampling is α, α =
(Pb * tb + Pn * tn)-(Prb * tb + Prn * tn) * (1- [gamma] / 100). Since it is necessary to fill this error in realizing the same amount simultaneously, error correction is performed by adding a power amount corresponding to the error to the next section.
[0016]
On the other hand, if the received power of the customer fluctuates as shown by PL in FIG. 2 (in this figure, it tends to increase), a delay of one sampling always occurs only by the error correction described above. Is insufficient. For this reason, it is assumed that the amount of received power has changed from the amount of power in the previous sampling interval (Pb × tb) to the amount of power in the current sampling interval (Pn × tn), and it is assumed that the same variation occurs between this time and the next sampling. Then, the variation β = (Pn × tn) − (Pb × tb) is set as the predicted correction value. The predicted value of the next sampling interval is β + (Pb × tn) = 2 (Pn × tn) − (Pb × tb). The transmission power command Pra * in the next sampling interval includes Pra * = ((α + β + (Pn × tn)) / (1−γ / 100)) / ta including the transmission loss power amount. Since tb = tn = ta,
Pra * = (3Pn− (Prb + Prn) × (1−γ / 100)) / (1−γ / 100).
[0017]
Such determination of the power command can be realized by configuring the generated power control apparatus 12 for power consignment with a microcomputer or the like, and if means for determining sampling is provided, the sampling is not limited to 5 minutes. In order to increase the control accuracy of the same amount simultaneously, it is possible to set a shorter sampling.
[0018]
Here, an embodiment of the present invention will be described with reference to FIGS.
As shown in FIG. 3 , in the first embodiment of the present invention, an additional correction value (δ) is set in addition to error correction and prediction correction. When controlling the same amount at the same time, it is more economical for the supply side to be slightly more than the shortage of supply due to the system, so it is more economical than the shortage to fluctuations in the received power of the consumer. An additional correction value is provided to transmit power in an excessive manner. The transmission power command Pra * in the next sampling section is Pra * = ((α + β + δ + (Pn × tn)) / (1−γ / 100)) / ta. The contents of the correction are as shown in FIG.
[0019]
FIG. 4 is a view for explaining a second embodiment of the present invention .
As shown in the figure, in the second embodiment of the present invention, in the prediction of the amount of received power in the basic concept of FIG. 2 , the correction coefficient k is set instead of the correction by the value of β, and the correction is made by the value of β × k. Is what you do. This is because, in the case of simultaneous control of the same amount as in the first embodiment, it is more economical that the supply side is slightly excessive than the case where supply is insufficient with respect to demand because of the system. This measure is taken as a means to transmit power with an excessive feeling rather than shortage with respect to fluctuations in power received by consumers. The correction coefficient k is a value larger than 1 when the variation β of the received power amount is positive, and the correction coefficient k is less than 1 when the variation β of the received power amount is negative. Restrict and set. At this time, the transmission power command Pra * for the next sampling section is
Pra * = ((α + β + k + (Pn × tn)) / (1−γ / 100)) / ta. The contents of the correction are as shown in FIG.
[0020]
FIG. 5 is a diagram for explaining a third embodiment of the present invention .
As shown in the figure, in the third embodiment of the present invention, the error correction value by the error correction unit, the received power amount prediction value by the received power amount prediction unit, and the transmission loss power amount are added and averaged over the sampling interval width. By doing so, the transmission power command in the next sampling section is obtained. When this transmission power command value is larger than the transmission power command value in the current sampling section, it is a command to increase the output of the generator. When controlling the output of the generator, the signal from the generated power control device 12 for power consignment shown in FIG. 1 acts on the generator controller 4, then the governor 3 and the prime mover 2. Has an element that becomes a dead zone. That is, it is conceivable that even if the transmission power command in the next sampling section is calculated as in the basic concept of FIG. 2, the generated power that is scheduled for the control delay or dead zone cannot be obtained. The shortage with respect to the planned generated power is generated in the form of being included in the error in the amount of power between the demand side and the supply side, resulting in a correction delayed by one sampling. In addition, as described in the first embodiment, it is preferable that the supply side is slightly excessive rather than the case where supply is insufficient with respect to demand. In order to compensate for the power shortage, a predetermined power amount (ε) is added in advance. The transmission power command Pra * in the next sampling section is Pra * = ((α + β + ε + (Pn × tn)) / (1−γ / 100)) / ta. The contents of the correction are as shown in FIG. For ε, for example, if the generated power as shown in FIG. 6A is traced due to the control delay of the generator, the hatched portion is caused by the time delay until the power command corresponding to the correction amount by α and β is reached. The amount of power in (1) will be insufficient. In order to compensate for the shaded portion (1) with the shaded portion (2) shown in FIG. 6B, a power command is raised in advance. This role is ε.
[0021]
A fourth embodiment of the present invention will be described with reference to FIG .
In the fourth embodiment of the present invention, the additional correction value in the first embodiment is set to a different value every 30 minutes. As described in the first embodiment, it is desirable that the supply side is slightly excessive rather than the case where supply is insufficient with respect to demand, and an additional correction value is provided for this purpose. Considering the changes in the amount of electricity received by consumers per day, there are times when it fluctuates abruptly and sometimes it fluctuates slowly. For example, it is conceivable that the received power amount prediction by the received power amount prediction means becomes difficult to follow when it increases rapidly and an error is likely to occur. In such a time zone, a large additional correction value is set. The additional correction value is set in consideration of the state of customer received power. The set value can be easily converted into a database and utilized by configuring the generated power control apparatus 12 for power consignment in FIG. 1 with a microcomputer or the like.
[0022]
A fifth embodiment of the present invention will be described with reference to FIG .
In the fifth embodiment of the present invention, the additional correction value k in the second embodiment is set to a different value every 30 minutes. As described in the second embodiment, it is desirable that the supply side is slightly excessive rather than the case where supply is insufficient with respect to demand, and an additional correction value is provided for this purpose. As described in the fourth embodiment, considering the transition of the amount of received power per day, there may be a sudden change or a gentle change. For example, it is conceivable that the received power amount prediction by the received power amount prediction means becomes difficult to follow when it increases rapidly and an error is likely to occur. In such a time zone, the correction coefficient k in the predicted value (β × k) of the received power amount is set large to reduce the prediction error of the received power amount. The correction coefficient is set in consideration of the state of consumer received power. The set value can be easily made into a database and utilized by configuring the generated power control apparatus 12 for power consignment with a microcomputer or the like.
[0023]
A sixth embodiment of the present invention will be described with reference to FIG .
The sixth embodiment of the present invention is a mode in which means for determining the correction coefficient k decided to be set every 30 minutes in the fifth embodiment is added. The predicted value of the received power amount in the next sampling section is calculated for each sampling, and this predicted value is compared with the actual value of the received power amount actually measured in the next sampling section. For every sampling in the 30-minute interval, the actual value is subtracted from the predicted value, and the difference is accumulated in the 30-minute interval. If the cumulative value is positive, the correction coefficient k is slightly reduced as a 30-minute section in which the effect of the correction coefficient k tends to be excessive. On the other hand, if the accumulated value is negative, the correction coefficient k is slightly increased as a 30-minute section in which the effect of the correction coefficient k tends to be insufficient. In this way, the correction coefficient k is tuned to increase the prediction accuracy.
[0024]
In the above description of each embodiment, the required time has been described as 30 minutes. However, it goes without saying that the technical idea of the present invention can be applied to this embodiment as appropriate even if the required time is longer or shorter than 30 minutes. .
[0025]
【The invention's effect】
As described above, according to the present invention, when a private power generation facility that is connected to the grid with a reverse power flow performs power consignment to the customer via the power system, Based on the value of the watt-hour meter installed at the power plant, it is possible to provide a power generation control device that performs power amount control for causing the power transmitted by the power plant to follow the amount of power received by a consumer at a predetermined time.
[Brief description of the drawings]
The basic configuration diagram of a power wheeling system power generation equipment for self house of the present invention; FIG.
FIG. 2 is an explanatory diagram of a basic concept in FIG.
FIG. 3 is an explanatory diagram of the first embodiment of the present invention.
FIG. 4 is an explanatory diagram of a second embodiment of the present invention.
FIG. 5 is an explanatory diagram of a third embodiment of the present invention.
FIG. 6 is a supplementary explanatory diagram of a third embodiment of the present invention.
FIG. 7 is a block diagram of a private power generation facility that performs reverse power flow operation by a conventional power generation control device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Power generation device, 2 ... Prime mover, 3 ... Speed governor, 4 ... Power generation controller, 5 ... AVR, 6, 7, 9 ... Power plant installation circuit breaker, 8 ... Power plant installation load, 10 ... Generator protection 11 ... Grid connection protection device, 12 ... Power generation control device for power consignment, 13 ... Electricity meter installed at power plant, 21 ... Load installed at customer, 22 ... Circuit breaker installed at customer, 23 ... Demand Home-installed watt-hour meter, 100 ... power plant, 200 ... customer, 300 ... electric power system.

Claims (7)

In the power consignment system consisting of a customer who receives the supply of generated power from the power generation facility via the power system, the power generation facility linked to the power system sends the generated power back to the power system.
Based on the amount of power transmitted back to the power grid by the power generation facility and the amount of power received by the consumer, the amount of power received in a predetermined time interval, and a predetermined amount of transmission loss power from the amount of power transmitted Sampling setting means for dividing the predetermined time interval by a predetermined sampling in order to match the electric energy excluding
Based on the received power amount , the transmitted power amount, and the predetermined transmission loss power amount measured for each section set by the sampling setting means, the received power until the current sampling from the start time of the predetermined time for each sampling An error correction means for compensating for an error in the next sampling section using an error between the power amount and the transmission power amount excluding a predetermined transmission loss power amount until the current sampling as an error correction value;
A received power amount prediction means for predicting a received power amount in the next sampling with a difference between a received power amount in the current sampling section and a received power amount in the previous sampling section as a fluctuation prediction value ;
An additional correction value for performing additional correction with a predetermined amount of power is provided,
Said error correcting means by for the sum of the received power amount prediction value by the reception power amount estimating means and the error correction value by adding the additional correction value, required transmission power amount by further adding a transmission loss amount of power equivalent And a power transmission control device for power consignment characterized in that the power transmission command in the next sampling section is obtained by averaging it with the sampling section width. In the power consignment system consisting of a customer who receives the supply of generated power from the power generation facility via the power system, the power generation facility linked to the power system sends the generated power back to the power system.
Based on the amount of power transmitted back to the power grid by the power generation facility and the amount of power received by the consumer, the amount of power received in a predetermined time interval, and a predetermined amount of transmission loss power from the amount of power transmitted Sampling setting means for dividing the predetermined time interval by a predetermined sampling in order to match the electric energy excluding
Based on the received power amount, the transmitted power amount, and the predetermined transmission loss power amount measured for each section set by the sampling setting means, the received power until the current sampling from the start time of the predetermined time for each sampling An error correction means for compensating for an error in the next sampling section using an error between the power amount and the transmission power amount excluding a predetermined transmission loss power amount until the current sampling as an error correction value;
A correction coefficient that is a predetermined coefficient that is larger than 1 when the difference between the received power amount in the current sampling section and the received power amount in the previous sampling section is positive, and is smaller than 1 when the difference in received power amount is negative. When,
Received power amount prediction means for predicting the received power amount in the next sampling using a variation prediction value obtained by multiplying the difference between the received power amount in the current sampling interval and the received power amount in the previous sampling interval by the correction coefficient. Provided,
Wherein the error correcting unit by the error correction value and the received power amount predicting means required transmission power amount by adding the transmission loss amount of power equivalent to the sum of the received power amount prediction value by averaging it with the sampling interval width By doing so, it is set as the transmission power command in the next sampling section, The generated power control apparatus in the power consignment characterized by the above-mentioned. In the power consignment system consisting of a customer who receives the supply of generated power from the power generation facility via the power system, the power generation facility linked to the power system sends the generated power back to the power system.
Based on the amount of power transmitted back to the power grid by the power generation facility and the amount of power received by the consumer, the amount of power received in a predetermined time interval, and a predetermined amount of transmission loss power from the amount of power transmitted Sampling setting means for dividing the predetermined time interval by a predetermined sampling in order to match the electric energy excluding
Based on the received power amount, the transmitted power amount, and the predetermined transmission loss power amount measured for each section set by the sampling setting means, the received power until the current sampling from the start time of the predetermined time for each sampling An error correction means for compensating for an error in the next sampling section using an error between the power amount and the transmission power amount excluding a predetermined transmission loss power amount until the current sampling as an error correction value;
A received power amount prediction means for predicting the received power amount in the next sampling using the difference between the received power amount in the current sampling interval and the received power amount in the previous sampling interval as a fluctuation prediction value;
The required transmission power amount is obtained by adding the amount corresponding to the transmission loss power amount to the addition result of the error correction value by the error correction unit and the received power amount prediction value by the received power amount prediction unit, and averaged by the sampling interval width In this case, the transmission power command in the next sampling section is set, but when the transmission power command in the next sampling section is larger than the transmission power command in the current sampling section, the control delay or dead band element of the power generator is A generated power control apparatus in power consignment, wherein a predetermined amount considered is added to a predicted received power amount . The generated power control apparatus for power consignment according to claim 1, wherein the additional correction value is set to a different value every predetermined time in consideration of a daily fluctuation pattern of consumer received power. The generated power control device in the power consignment feature. The generated power control apparatus for power consignment according to claim 2, wherein the correction coefficient is set to a different value every predetermined time in consideration of a daily fluctuation pattern of consumer received power. Power generation control device for power consignment. In the generated power control apparatus in the power consignment according to claim 5, the difference between the actual values measured in the next sampling section is obtained from the predicted value of the received power amount in the next sampling section, and this is used as a prediction error. If the cumulative value of prediction error in all sampling intervals is positive, the correction coefficient in the predetermined time interval is reset to a reduced value, and if the cumulative value of prediction error is negative, the correction coefficient in the predetermined time interval is increased. A generated power control apparatus in power consignment, wherein a value reset in a predetermined time interval after a later date is used by resetting with a value . In generated power control device in the power wheeling according to any one of claims 1 to 6, generated power control device in a power wheeling, wherein the predetermined time is 30 minutes.

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