JP6501962B1 - POWER GENERATION SYSTEM, CONTROL DEVICE, AND METHOD FOR SETTING POWER GENERATION TARGET VALUE - Google Patents

Abstract

An object is to provide a power generation system capable of switching and operating power supply to a self-consumption type in an area in order to make effective use of a wind power generation facility.
A power generation system (100) includes a first power generation facility (10), a second power generation facility (20), and a management device (40). The management device (40) generates demand data in the management area and power generation in the first power generation facility (10). A first power generation mode for calculating a first target value in the second power generation facility 20 based on the actual performance value, and a first power generation determined by applying wind condition information after a predetermined time of the management area to a predetermined calculation method The second target value, which is a value determined by adding the difference between the predicted value of the equipment and the current first output value of the first power generation equipment to the current second output value of the second power generation equipment with an opposite sign, It has the 2nd mode set as a target value of the 2nd power generation equipment after time.
[Selected figure] Figure 1

Description

  The present invention relates to a power generation system, a control device, and a method of setting a power generation target value.

  As for the existing wind power generation facilities in a certain area, the 20-year power sale period to the electric power grid defined by the contract of FIT (Renewable Energy Fixed Price Purchase System) contract will be ended soon. Operation of the wind power generation facility after the end of the sale of electricity was desired.

  On the other hand, as a feature of wind power generation, the amount of power generation may fluctuate significantly depending on the season or the wind conditions of the day, and it may be difficult to stably supply power within the region. For this reason, according to Patent Document 1, the storage battery connected to the wind power generation device and the generated power of the wind power generation device are detected, and charging of the storage battery is performed from the reference value determined from the generated power of the previous cycle and the detected generated power. A wind power generation control device is disclosed that has a storage battery controller that performs discharge control, and suppresses power generation output fluctuation of a wind power generator due to wind speed fluctuation.

Patent No. 3905692

  However, as shown in Patent Document 1, new equipment investment is required for the method of additionally providing a storage battery and discharging power from the storage battery to level the generated power and supply it to the demand end when the wind is not blowing. It leads to cost increase. In addition, in order to make effective use of existing wind power generation facilities, it has been desired to switch to power supply to self-consumption type in the area and to operate.

  The present invention has been made to solve the above-described problems, and a power generation system capable of switching to and using an electric power supply to a self-consumption type in an area to operate effectively the wind power generation facility, It is an object of the present invention to provide a control device and a method of setting a power generation target value.

  In order to achieve the above object, the power generation system of the present invention includes a first power generation facility that generates power using renewable energy, a second power generation facility that operates a heat engine to generate power, and a power generation output of the first power generation facility. Control device for controlling supply of electric power to the managed area based on a total output value obtained by summing the first output value and the second output value obtained by operating the second power generation facility. The control system has a first power generation mode and a second power generation mode, and in the first power generation mode, a first actual value and a first power generation facility obtained from the power demand amount performance of a predetermined period of the area The first target value determined by the difference with the second actual value obtained from the output results of the predetermined period of time is set as the target value of the second power generation facility, power is generated by the second power generation facility, and in the second power generation mode, After a certain time of the area The difference between the predicted value of the first power generation facility determined by applying the situation information to the predetermined calculation method and the current first output value of the first power generation facility is reversed to the current second output value of the second power generation facility A second target value, which is a value determined by addition with a code, is set as a target value of the second power generation facility after a predetermined time, and power generation by the second power generation facility is performed. Other aspects of the invention are described in the embodiments described below.

  ADVANTAGE OF THE INVENTION According to this invention, in order to plan effective utilization of a wind-power-generation installation, it can switch and operate to the electric power supply to a self-consumption type | mold in an area.

It is a figure showing composition of a power generation system concerning this embodiment. It is a figure which shows the structure of the management apparatus which concerns on this embodiment. It is a figure which shows the electricity demand of a management area, and the actual value information of the electric power generation output of a 1st power generation installation. It is a flow chart which shows control processing of a controlling device. It is an explanatory view showing control processing of the 1st power generation mode and the 2nd power generation mode.

Embodiments for carrying out the present invention will be described in detail with appropriate reference to the drawings.
FIG. 1 is a diagram showing a configuration of a power generation system 100 according to the present embodiment. The power generation system 100 includes a first power generation facility 10 that is one or more renewable energy that supplies power to a specific management area (a predetermined area), and one or more second power generation facility 20 that operates a heat engine to generate power. And the management apparatus 40 (control apparatus) which controls the electric power supply amount to a management area. The management area has one or more consumers 30 that consume power. A commercial power system 60 is also connected to the distribution system in the management area. The weather information providing organization 50 is connected to the management device 40 via a communication line such as the Internet, and provides, for example, information on the wind condition to the management device 40.

  The management area includes, for example, relatively high demand customers such as agricultural houses, factories, hotels, and hospitals or low demand consumers such as public facilities, schools, and municipalities. .

  The first power generation facility 10 is, for example, a wind power generator. In the wind power generator, for example, the angle of the blades of the wind turbine is controlled based on the power generation instruction from the management device 40, and the generated power is adjusted.

  The second power generation facility 20 is, for example, a wood gasification generator, a liquefied natural gas generator, or a biogas generator. The wood gasification generator has an advantage of being able to achieve cost reduction in the power generation system 100 since the wood gasification generator generates electricity using thinning material and the like to be discarded.

  The configurations of the first power generation facility 10 and the second power generation facility 20 are not particularly limited, but the first power generation facility 10 is preferably a generator using renewable energy, and the second power generation facility 20 Is preferably a private generator with low cost of power generation.

  In the present embodiment, since the existing wind power generation facility in the management area (area) has a power sale period for the 20-year power grid defined by the contract of the FIT (fixed energy purchase system for renewable energy), it will soon be completed. We planned to operate wind power generation facilities after the end of the sale period. By operating the wind power generation facility, power can be supplied to the area without increasing the fuel cost.

  In addition, when the amount of power generation in the wind power generation facility is not sufficient for the demand load of the demand destination, the wood gasification generator performs additional cooking operation to increase the power generation output, and of the power system supplied to the area. It is possible to switch the supply destination and additionally supply power to the demand destination whose power generation capacity is insufficient with the wind power generation facility alone.

  Specifically, a value corresponding to the actual amount of power demand of the demand destination in the past relevant area (management area) of a specific area is taken as the first actual value, and the amount of power generation by wind power generation for each past season This is the second actual value. The difference between the first actual value and the second actual value is set as an output target value to be generated by the wood gasification generator. That is, the total target value to be generated in the area of the day is the sum of the first output value, which is the generated output of the first power generation facility 10, and the second output value obtained by operating the second power generation facility 20. Power is supplied to the management area based on the output value. This is referred to as a first power generation mode M1 (see FIG. 4).

  Next, when it is predicted that the amount of power generation by wind power generation will fluctuate due to the wind conditions on the day after the start of power supply to the area on the day, and the difference with the total target value is expected, the output by the wood gasification generator The target value is adjusted according to the difference, and stable power supply is performed so as to be equal to the total target value. This is referred to as a second power generation mode M2 (see FIG. 4).

  In the present embodiment, the power generation system 100 can easily determine the additional power generation amount of the wood gasification generator by obtaining the difference between the past demand power and the power generation amount by wind power generation at the start of operation. Even in the case of self-consumption type power supply in the area, stable power supply can be performed on the demand side.

  Further, the power generation system 100 preferentially supplies power by wind power generation, which does not require fuel costs, to a demand destination in the case of self-consumption type power supply in a region, and when power runs out, a wood gasification generator Supply additional power generated by This enables stable power supply to the area at a minimum cost.

In addition, if it is a wood gasification generator that uses thinning material etc. in the area that will be originally discarded compared to a generator that uses natural gas and oil as its fuel, considering the transportation cost etc. It goes without saying that the cost performance is excellent.
The details of the power generation system 100 will be described with reference to FIGS.

  FIG. 2 is a diagram showing a configuration of the management device 40 according to the present embodiment. The management device 40 includes a processing unit 41, a storage unit 42, an input unit 43, a display unit 44, and a communication unit 45. The processing unit 41 is a central processing unit (CPU), and the power demand acquisition unit 411 acquires the power demand of the customer 30, and the first power generation output acquisition acquires the power generation output of the first power generation facility 10. Unit 412, second power generation facility output acquiring unit 413 for acquiring the power generation output of the second power generation facility 20, actual value of past power demand and actual value of past power generation of the first power facility 10 First power generation facility output prediction unit 415 which calculates a predicted value of the first power generation facility 10 to be determined by applying the wind condition information after a predetermined time ΔT from the present to the predetermined calculation method A first target value calculation unit 416 that calculates a first target value that is an output target value of the second power generation facility 20 in mode M1 (see FIG. 4), and a second power generation facility 20 in the second power generation mode M2 (see FIG. 4). Target output value of A second target value calculating section 417 for calculating a target value.

  The storage unit 42 includes the power demand amount information 421 acquired by the power demand amount acquisition unit 411, the first power generation facility output information 422 acquired by the first power generation facility output acquisition unit 412, and the actual value calculated by the actual value calculation unit 414. Information 424 (see FIG. 3), first power generation facility prediction information 425 calculated by the first power generation facility output prediction unit 415, first target value information 426 of the second power generation facility 20 calculated by the first target value calculation unit 416, The second target value information 427 and the like of the second power generation facility 20 calculated by the second target value calculation unit 417 are stored.

  The input unit 43 is a device for inputting an instruction to a computer such as a keyboard and a mouse, and inputs an instruction such as program activation. The display unit 44 is a display or the like, and displays an execution state, an execution result, and the like of a process by the management device 40. The communication unit 45 exchanges various data and commands with other devices via a network or the like.

  For example, the management device 40 receives weather information from the weather information providing organization 50 via a communication line such as the Internet. The weather information includes information on wind conditions including mean wind speed, mean wind direction, maximum instantaneous wind speed, standard deviation of wind speed, and the like.

  FIG. 3 is a diagram showing the power demand amount of the management area and the actual value information 424 of the power generation output of the first power generation facility 10. Refer to FIG. 2 as appropriate. Here, the power demand amount of the management area is referred to as a first actual value, and the actual value of the power generation output of the first power generation facility 10 is referred to as a second actual value.

  The first actual value is obtained by dividing each one year of the predetermined period of the area into two or more periods according to a predetermined method (for example, every month or every three months), and the power of the management area for each same division period The second performance value is the average value per unit time determined from the sum of demand volume results, and the second performance value divides each one year of the predetermined period of the first power generation facility into two or more periods according to a predetermined method, and It is an average value per unit time obtained from the sum total of the output performance of the first power generation facility 10 for each divided period. The actual value calculation unit 414 calculates the first actual value and the second actual value.

  In FIG. 3, as a specific example, one year is divided every one month, and the first average value (first actual value) and the second average value (first actual value) for 20 years (1998 to 2017) as past actual values The second actual value) is shown.

  FIG. 4 is a flowchart showing control processing of the management device 40. Refer to FIG. 2 and FIG. 3 as appropriate. The first power generation mode M1 corresponds to steps S41 to S44, and the second power generation mode M2 corresponds to steps S46 to S49.

  As shown in FIG. 3, the actual value calculation unit 414 divides each one year of the predetermined period of the management area into two or more periods by a predetermined method, and the power demand amount actual results for each same divided period. The first average value per unit time is obtained from the sum of the above (step S41). Then, the actual value calculation unit 414 divides each one year of the predetermined period of the first power generation facility 10 into two or more periods according to a predetermined method, and outputs the first power generation facility 10 for each same divided period. A second average value per unit time is determined from the sum of the results (step S42). The first target value calculation unit 416 obtains a first target value to be determined by the difference between the first average value and the second average value, and sets the first target value as an initial value of the power generation target value of the second power generation facility (step S43). The first target value calculation unit 416 determines whether the predetermined time ΔT has elapsed (step S44), and if the predetermined time ΔT has not elapsed (step S44, No), the process returns to step S44, and if the predetermined time ΔT has elapsed (step S44) Step S44, Yes) Go to step S46.

  In step S46, the first power generation facility output prediction unit 415 applies the predetermined calculation method to the wind condition information after the predetermined time ΔT of the management area to determine the output prediction value of the first power generation facility 10.

  The second target value calculation unit 417 adds the difference between the predicted value of the first power generation facility 10 and the current first output value of the first power generation facility 10 to the current second output value of the second power generation facility with a reverse sign. A second target value which is a value to be determined is determined and set as a target value of the second power generation facility after a predetermined time (step S47).

  The second target value calculation unit 417 determines whether or not there is a termination instruction of power generation of the second power generation facility 20 (step S48), and when there is a termination instruction (step S48, Yes), the processing is terminated and terminated. If there is no command (Step S48, No), the process proceeds to Step S49.

  In step S49, the second target value calculation unit 417 determines whether or not the predetermined time ΔT has elapsed. If the predetermined time ΔT has not elapsed (No in step S49), the process returns to step S49. Step S49, Yes) Go to Step S46.

  FIG. 5 is an explanatory view showing control processing of the first power generation mode M1 and the second power generation mode M2. The first power generation mode M1 is a mode at startup, and the second power generation mode M2 is a mode after startup. The horizontal axis represents the elapsed time, and the vertical axis represents the power generation output of the first power generation facility 10. Times t1, t2, t3,... Are “relative times” for each predetermined time ΔT with reference to time t0. In principle, the power generation output of the first power generation facility 10 at time t1 is predicted at time t0, the power generation output of the first power generation facility 10 at time t2 is predicted at time t1, and the power generation output of the first power generation facility 10 at time t3 at time t2 Predict power generation output.

  In addition, although it is a problem only at the time of starting, ideally, the output prediction of the first power generation facility 10 should be performed from the wind conditions and the like after the next predetermined time ΔT at time t0, but the first power generation facility Since there is a time lag from 10 starting up to reaching the output target value, it becomes impossible to predict the power generation output at time t1 based on the power generation output value of the first power generation facility at time t0. Therefore, in FIG. 4, in step S44, the predetermined time ΔT is determined.

Here, the concept of the setting of the output target value of the second power generation facility 20 will be described.
(1) At the start of the first power generation mode M1 (different depending on the operation, such as every day (Daily), every month (Monthly), etc.)
・ Daily ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ The first power generation facility 10 (wind power generation facility) has wind condition in the range from 0 to rated It generates electricity freely based on the situation, and operates in continuous operation after startup.
The difference between the average value of the electric power demand amount of the past predetermined period in the managed area and the average value of the power generation output of the first power generation facility is set as the output target value of the second power generation facility.

(2) In the second power generation mode M2, after a predetermined time has elapsed since startup,
At present, based on conditions such as wind conditions, the output predicted value of the first power generation facility after the next time lapse is calculated, and the difference between this predicted value and the current output value of the first power generation facility is the current second power generation. A value obtained by adding or subtracting the output of the facility is set as an output target value of the second power generation facility at the next elapsed time.

This will be described in more detail using formulas.
S1: First power generation facility 10 (renewable energy)
S2: Second power generation facility 20 (heat engine)
PS1 (t): 1st output value of each time (generation output of 1st power generation facility)
PS2 (t): second output target value at each time (generation output target value of second power generation facility)
PS2 present (t): Power generation output PDa (t) of the second power generation facility at the current time: First actual value of each time (Amount of power demand for a predetermined period of area)
PS1a (t): Second actual value of each time (output of the first power generation facility for a predetermined period)
PS1p (t): Predicted value of the first generation facility at each time (estimated value on the day of operation)
If you

(1) First power generation mode M1 (at the start of power supply: when starting the second power generation facility)
The first output value is PS1 (t0)
The second output target value is PS2 (t0) = first target value (t0)
= PDa (t0)-PS1a (t0) ... Formula 1

(2) Second power generation mode M2 (set an output target value of the second power generation facility at time t2 after ΔT, with time t1 as the current time)
The first output value is PS1 (t1)
The second output target value is PS2 (t2) = PS2 present (t1) + difference Equation 2

Here, the difference is the difference between the predicted value PS1p (t2) of the power generation output of the first power generation facility at time t2 on the day of operation and the power generation output PS1 (t1) of the first power generation facility at current time t1.
Difference = PS1p (t2) −PS1 (t1) Formula 3
It is.

(2-1) When the difference is plus (+) (equation 3 is +)
That is, in the case of [PS1p (t2)> PS1 (t1)], the predicted value of the power generation output of the first power generating facility on the day of operation at time t2 is larger than the output at time t1.
In this case, it is necessary to reduce the power generation output of the second power generation facility 20.
Since this is added to PS2 present (t1) by the reverse code to determine the second output target value PS2 (t2), Equation 3 is multiplied by −1 to obtain the reverse code.
Difference = − (PS1p (t2) −PS1 (t1)) Formula 4
At this time, the value of equation 4 is minus (-).
Substituting the equation 4 into the equation 2, the second output target value PS2 (t2) becomes
PS2 (t2) = PS2 present (t1) + difference PS2 (t2) = PS2 present (t1)-(PS1 p (t2)-PS1 (t1)) Formula 5

(2-2) When the difference is minus (-) (Equation 3 is-)
That is, in the case of [PS1 p (t2) <PS1 (t1)], the predicted value of the power generation output of the first power generation facility at time t2 on the day of operation is smaller than the output at time t1.
In this case, it is necessary to increase the power generation output of the second power generation facility 20.
Since this is added to PS2 present (t1) by the reverse code to determine the second output target value PS2 (t2), Equation 3 is multiplied by −1 to obtain the reverse code.
Difference = − (PS1p (t2) −PS1 (t1)) Formula 4
At this time, the value of Equation 4 is plus (+).
Substituting the equation 4 into the equation 2, the second output target value PS2 (t2) becomes
PS2 (t2) = PS2 present (t1) + difference PS2 (t2) = PS2 present (t1)-(PS1 p (t2)-PS1 (t1)) Formula 5

Finally, even if equation 3 is + or-, equation 5 above is obtained.
That is, the second output target value in the second power generation mode M2 is operated based on Expression 5.

Here, an extreme case is assumed in Equation 5 above. That is, when the predicted value of the power generation output of the first power generation facility 10 at time t2 is 0,
Assuming that PS 1 p (t 2) = 0 (it is assumed that the wind does not blow at t 2), equation 5 becomes
Second output target value PS2 (t2) = PS2 present (t1)-(0-PS1 (t1))
= PS2 present (t1) + PS1 (t1) · · · Formula 5-1
According to Expression 5-1, in the second power generation facility 20, an excessive power generation output target including the amount of the first power generation facility 10 is set as the output target value of the second power generation facility. However, since the power generation output of the second power generation facility has a limit (upper limit),
Limit output of the second power generation facility 20 ≧ PS2 present (t1) + PS1 (t1)
The second output target value is set for the second power generation facility only when the above condition is satisfied.
Therefore, stable power supply can not be performed on the demand side during the above period. In that case, when the second target value exceeds the maximum output of the second power generation facility 20, the second power generation facility 20 is operated at the maximum output.

  In summary, the power generation system 100 includes a first power generation facility 10 (for example, S1) that generates power using renewable energy, and a second power generation facility 20 (for example, S2) that generates heat by operating a heat engine. The first output value (for example, PS1 (t)), which is the power generation output of the first power generation facility 10, and the second output value (for example, PS2 (t)) obtained by operating the second power generation facility 20 are summed. And a control device (e.g., the management device 40) that controls power supply to the management area based on the total output value.

  The control device has a first power generation mode M1 and a second power generation mode M2. In the first power generation mode M1, a first actual value (for example, PDa (t0)) obtained from the actual power demand amount in the management area for a predetermined period, and a second actual value obtained from the output actual for the first power generation facility 10 in the predetermined period ( For example, a first target value determined by a difference from PS1a (t0) is set as a target value of the second power generation facility 20, and power generation by the second power generation facility 20 is performed. In the second power generation mode M2, a predicted value (for example, PS1p (t2) of the first power generation facility 10 to be determined by applying wind condition information after a predetermined time of the management area (for example, time t2) to a predetermined calculation method And the current first output value (for example, PS1 (t1)) of the first power generation facility 10 to the current second output value (for example, PS2 current (t1)) of the second power generation facility 20 The second power generation facility 20 generates power by setting a second target value, which is a value determined by addition, as a target value of the second power generation facility 10 after a predetermined time.

  According to the power generation system 100 according to the present embodiment, the existing renewable energy generator (for example, a wind power generator), which does not require fuel costs, preferentially supplies power to the management area and runs short of power. In some cases, power can be additionally supplied to the control area by other generators requiring fuel (eg, wood gasification generators). As a result, it is possible to realize the power generation system 100 capable of supplying stable power to the customers 30 and the like while suppressing the cost.

  The second power generation facility 20 may generate power based on the second target value, and may supply heat to the management area based on a request from the management area. As a result, the amount of heat can be supplied to the customer 30 and the like while suppressing the cost.

10 first power generation facility 20 second power generation facility 30 customer 40 management device (control device)
41 processing unit 411 power demand acquisition unit 412 first power generation facility output acquisition unit 413 second power generation facility output acquisition unit 414 actual value calculation unit 415 first power generation facility output prediction unit 416 first target value calculation unit 417 second target value Calculation unit 42 Storage unit 421 Power demand information 422 First power generation facility output information 424 Actual value information 425 First power generation facility forecast information 426 First target value information 427 Second target value information 43 Input unit 44 Display unit 45 Communication unit 50 Weather information provider 60 commercial power grid 100 power generation system M1 first power generation mode M2 second power generation mode NW network

Claims (8)

A first power generation facility that generates power using renewable energy, a second power generation facility that operates a heat engine to generate power, a first output value that is a power generation output of the first power generation facility, and the second power generation facility A control system for controlling supply of power to a managed area based on a total output value obtained by summing up the second output value obtained by operation and the control system.
The control device has a first power generation mode and a second power generation mode,
In the first power generation mode, a first target determined based on a difference between a first actual value obtained from the actual power demand amount in the predetermined period of the area and a second actual value obtained from the output result of the first power generation facility for the predetermined period Setting a value as a target value of the second power generation facility to generate power by the second power generation facility,
In the second power generation mode, the predicted value of the first power generation facility and the current first output value of the first power generation facility determined by applying wind condition information after a predetermined time of the area to a predetermined calculation method Setting a second target value, which is a value determined by adding the difference between the second power generation facility and the current second output value of the second power generation facility with a reverse sign, as a target value of the second power generation facility after a predetermined time A power generation system, wherein power generation is performed by the second power generation facility. The control device starts supplying power to the area in the first power generation mode, shifts to the second power generation mode after a predetermined time has elapsed, and supplies power to the area. The power generation system described in. The first actual value is a unit time obtained by dividing each one year of a predetermined period of the area into two or more periods according to a predetermined method, and calculating from the sum of the power demand amount records of the area for each same division period. It is the average value of per,
The second actual value is obtained by dividing each one year of a predetermined period of the first power generation facility into two or more periods according to a predetermined method, and the output performance of the first power generation facility for each of the same divided periods. It is an average value per unit time calculated | required from a total. The electric power generation system of Claim 1 characterized by the above-mentioned. The power generation system according to claim 1, wherein when the second target value exceeds the maximum output of the second power generation facility, the second power generation facility is operated at the maximum output. The power generation system according to claim 1, wherein the second power generation facility generates power based on the second target value, and supplies heat to the area based on a request from the area. The first output value that is the current power generation output of the first power generation facility that generates power using renewable energy, the output result value of the first power generation facility for a predetermined period, and the power demand for a predetermined period of the managed area An input unit for acquiring a quantity actual value,
An output unit that outputs a power generation target to a second power generation facility that generates heat by operating a heat engine;
A storage unit that stores the first output value, the output actual value, and the power demand amount actual value input from the input unit;
And a calculation unit that determines a first target value that is an initial value of a power generation target of the second power generation facility, and a second target value that is a power generation target for each predetermined time thereafter.
The calculation unit calculates the first target value based on a difference between a first actual value obtained from a power demand amount actual value of a predetermined period of the area and a second actual value obtained from an output result of the first power generation facility for a predetermined period. determined,
The calculation unit is configured to determine the predicted value of the first power generation facility and the current first output value of the first power generation facility, which are determined by applying wind condition information for each predetermined time of the area to a predetermined calculation method. A second target value, which is a value determined by calculating a difference and adding the difference to the current second output value of the second power generation facility with a reverse sign, a target value of the second power generation facility after a predetermined time A control device characterized by being set as The arithmetic unit divides each one year of a predetermined period into two or more periods according to a predetermined method, and calculates a first average value per unit time obtained from the sum of the actual power demand amount for each same division period; Each second year of the first power generation facility is divided into two or more periods by a predetermined method, and a second average value per unit time is obtained from the sum of the output results of the first power generation facility for each same divided period. The control device according to claim 6, wherein the first target value is obtained by calculating the difference between and. A power generation system comprising a first power generation facility that generates power using renewable energy, a second power generation facility that operates a heat engine to generate power, and a controller, and supplies power to a managed area,
The controller is
Dividing each one year of the predetermined period of the area into two or more periods according to a predetermined method, and obtaining a first average value per unit time from the sum of the power demand amount performance for each same division period ,
Each one year of the predetermined period of the first power generation facility is divided into two or more periods by a predetermined method, and the first output power of the first power generation facility is summed from the sum of the output results of the first power generation facility for each same divided period 2 determining the mean value,
Obtaining a first target value determined by a difference between the first average value and the second average value, and setting the first target value as an initial value of a power generation target value of the second power generation facility;
Applying a predetermined calculation method to wind condition information after a predetermined time of the area to determine a predicted value of the first power generation facility;
A value determined by adding the difference between the predicted value of the first power generation facility and the current first output value of the first power generation facility to the current second output value of the second power generation facility with a reverse sign (2) obtaining a target value and setting the target value as a target value of the second power generation facility after a predetermined time.

Images