JP6154329B2 - Wind power generator management device and management method - Google Patents

Description

  The present invention relates to a wind power generator management device and a management method.

  In recent years, wind power generation has attracted attention from the viewpoint of environmental protection. The wind power generator is connected to the power system and supplies the generated power to the power system.

  In patent document 1, the electric power generation output of a wind power generator is restrict | limited beforehand so that electric power can further be supplied to an electric power system according to the fall of the frequency or voltage which arose in the electric power system. And in patent document 1, the rotation speed of a rotor is measured for every wind power generator, and the limitation amount of the power generation output of a wind power generator is set based on the rotation speed of a rotor.

  Patent Document 2 describes that in order to adjust the output of a wind power generator with respect to a system load that changes every moment, it is necessary for an operator to operate the instrument while constantly monitoring it. In Patent Document 2, there is a description that in manual output adjustment, wind power generators are often subjected to an output limit more than necessary, and wind energy is wasted.

JP 2012-97596 A Japanese Patent No. 3461495

  When the wind power generator connected to the power system fluctuates greatly due to an accident or the like, the wind power generator releases the connection with the power system in order to protect the device. Canceling the connection with the power system is called disconnection.

  As the number of wind power generators connected to the power system increases, a decrease in power supply due to simultaneous disconnection of a plurality of wind power generators becomes a problem. That is, when a system fault occurs and the voltage is greatly reduced, a plurality of wind power generators are disconnected at the same time. As a result, the amount of power supplied from the wind power generator to the power system is reduced. Therefore, the power supply becomes unstable.

  As a countermeasure, the amount of power lost due to disconnection of the wind power generator when a grid fault occurs (disconnection amount) is monitored, and the power supply becomes unstable when power from the wind power generator is lost (restriction) A method of limiting the output of the wind power generator in advance so as not to exceed (value) is conceivable. However, on the other hand, in order to make effective use of wind energy, it is desirable that the operation be performed with no limitation on the output of the wind power generator as much as possible. However, since the output value of the wind power generator and the state of the power system change every moment, it is difficult to appropriately manage the wind power generator in almost real time.

  The present invention has been made paying attention to the above-mentioned problems, and its object is to provide a wind power generator management device and a management method capable of operating a wind power generator efficiently while stably operating an electric power system. There is to do.

  In order to solve the above-mentioned problems, a wind power generator management device according to the present invention is a wind power generator management device that manages a plurality of wind power generators linked to an electric power system, and in a predetermined case among the wind power generators. A total amount of power generation of a predetermined wind power generator that is disconnected from the power system is calculated as a parallel amount, and a predetermined wind power generator is calculated from the difference between the parallel amount and a predetermined constraint value. An upper limit calculation unit that calculates an individual distribution amount for distribution and calculates a total value of the individual distribution amount and the power generation amount of a predetermined wind power generator as an upper limit value of the power generation amount of the predetermined wind power generator .

  According to the present invention, in preparation for a predetermined case, each wind power generator can output up to the upper limit value, and both stabilization of the power system and efficient operation of the wind power generator can be achieved.

Explanatory drawing which shows the whole structure of a wind generator management apparatus. A table that manages wind power generators that are disconnected when an accident occurs in the power system. Explanatory drawing which shows the table which manages the amount of arrangement | sequences, and the table which manages the upper limit (output upper limit) of the electric power generation amount in each wind power generator. The flowchart which shows the process which sets the output upper limit of each wind power generator. Explanatory drawing which shows a mode that the amount of line-separation is estimated for every system fault, and the difference of a line-separation amount and a constraint value is distributed to each wind power generator as a distribution amount. Explanatory drawing following FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The wind power generator management apparatus and management method according to the present embodiment sets the upper limit value of the power generation amount of the wind power generator in advance so that the stability of the power system is not lost even if a grid fault occurs.

  As a background of the wind power generation business, it is desired that wind power generation can generate maximum power without being suppressed as much as possible. Therefore, it is necessary to operate the wind power generator so that it can generate power to the maximum while keeping the amount of disconnection at the time of a grid fault not exceeding the limit value.

  Therefore, in the present embodiment, an output upper limit value that is the maximum value for allowing each wind power generator to generate power is defined. Since the power supply / demand state and the wind power generation state change from moment to moment, in this embodiment, the output upper limit value is dynamically set according to the state of the power system.

  In order to set an optimum output upper limit value for all wind power generators, a large amount of combination calculation is required, and thus it takes a long time to calculate the output upper limit value. One calculation example will be described. First, all the combinations of the output upper limit values of the wind power generator whose disengagement amount does not exceed the constraint value are listed for all assumed system faults. Next, a combination that maximizes the total output upper limit value of the wind power generator is obtained from combinations of output upper limit values of the wind power generator that do not exceed the constraint value.

In the above calculation example, as the number of assumed grid faults and the number of wind power generators increases, the amount of calculation for obtaining the combination of the output power upper limit values of the wind power generators in which the amount of disconnection does not exceed the constraint value is increased. Become enormous.
Therefore, in a relatively large-scale power system with a large number of grid faults that must be envisaged and a large number of wind power generators linked to the power system, it is suitable for each wind power generator. It is difficult to set the output upper limit value dynamically. This is because it is necessary to perform enormous calculations in a short time depending on the state of the power system and the wind conditions.

  Therefore, in the present embodiment, attention is paid to a system fault in which the amount of disconnection is the largest. In a grid fault where the amount of disconnection is the maximum, the output upper limit value of the wind power generator is determined based on the wind generators to be disconnected, their generator outputs, and the amount of disconnection.

  As described above, in the present embodiment, the output upper limit value is sequentially determined for the wind turbines to be disconnected based on the system fault in which the disconnection amount is maximum. In the present embodiment, the output upper limit value may be determined by the number of system faults to be assumed. For this reason, the output upper limit value of all the wind power generators can be determined with a relatively small amount of calculation. Therefore, according to the present embodiment, even if the number of wind power generators connected to the power system increases, the calculation time is hardly affected. Therefore, wind power generation is dynamically performed in a large-scale power system. The output upper limit value of the machine can be set.

  FIG. 1 is a functional configuration diagram of the wind power generator management device 10. First, the configuration of the power system will be described. For example, a thermal power plant 2, a nuclear power plant 3, a wind power plant 4, and a customer 5 are connected to the power network 1. The electric power generated at each of the power plants 2, 3, and 4 is supplied to consumers through a power transmission / distribution system. The power system may include a solar power generator, a storage battery, an electric vehicle, and the like as a distributed power source. In the following description, the wind power plant is referred to as a wind power generator.

The wind power generator management device 10 is configured as a computer device, for example, and is connected to each wind power generator 4 via a communication network CN. Further, the wind power generator management device 10 may be connected to a power management system (not shown) used by a power system manager via the communication network CN or another communication network.
A predetermined computer program stored in the memory is read and executed by the microprocessor, thereby realizing the separation amount calculation unit 11, the upper limit calculation unit 12, and the setting unit 13.

  The amount-of-disconnection calculation unit 11 calculates the amount of separation for each assumed system fault. For example, information related to the power network configuration and information related to the power generation amount of each wind power generator 4 are input to the disconnected amount calculation unit 11. The disconnected amount calculation unit 11 assumes an accident case that may occur in the power system (110), and identifies the wind power generator 4 to be disconnected for each assumed system failure (111). That is, when a certain grid fault occurs, the wind power generator 4 that is disconnected from the grid due to the fault is specified. Then, the amount-of-disconnection calculation unit 11 calculates the amount of separation for each assumed system fault (112). The accident case may be assumed by the amount-of-disconnection calculation unit 11 by a simulation calculation, or may be acquired from a power management system used by a power system manager.

  The upper limit calculation unit 12 calculates the upper limit value of each wind power generator 4. The upper limit value is an upper limit value that can be generated by the wind power generator 4, and is also referred to as an output upper limit value. The upper limit calculation unit 12 determines an accident case to be calculated (120), and for the system fault to be processed, the difference between the amount of sequence calculated by the sequence amount calculation unit 11 and a predetermined constraint value is used as the distribution amount. Calculate (121). Here, the predetermined constraint value is a lower limit value of the power supply amount necessary for maintaining the power system in a stable state. In the following description, the predetermined constraint value may be abbreviated as “constraint value”. When the amount of power supply that is greater than the constraint value is lost, the stable state that the power system should maintain is lost. In other words, even if a system fault occurs and some of the wind power generators 4 are disconnected, if the amount of disconnection does not reach the constraint value, the stable state of the power system can be maintained.

  The upper limit calculator 12 calculates the individual distribution amount to be distributed to each wind power generator 4 by dividing the distribution amount that is the difference between the disengagement amount and the constraint value by the number of wind power generators 4 to be disengaged. Then, an upper limit value is calculated by adding the individual distribution amount to the power generation amount of the wind power generator 4 (122).

  The setting unit 13 transmits the upper limit value calculated by the upper limit value calculation unit 12 to each wind power generator 4 and sets it. Each wind power generator 4 generates power so as not to exceed the upper limit value received from the wind power generator management device 10.

  FIG. 2 is an example of a disconnected generator management table T1 for managing wind generators that are disconnected for each assumed system fault. The disconnected generator management table T1 manages, for example, the accident case number C10, the accident case contents C11, and the disconnected wind generator C12 in association with each other.

  The accident case number C10 is identification information for specifying a system fault. The accident case content C11 is information indicating the content of the system fault identified by the accident case number C10. The disconnected wind power generator C12 is identification information for specifying the wind power generator 4 to be disconnected from the power system when the system fault specified by the accident case number C10 occurs. The wind power generator management device 10 can know which wind power generator 4 is to be disconnected when a certain system fault occurs by referring to the disconnected power generator management table T1.

  FIG. 3 shows a configuration example of the two tables T2 and T3. The amount-of-disconnection management table T2 shown on the upper side of FIG. 3 manages the amount of separation and the distribution amount when a system fault occurs. The disengagement amount management table T2 manages, for example, the accident case number C20, the disengagement wind power generator C21, the disengagement amount C22, and the distribution amount C23 in association with each other.

  The accident case number C20 is information for identifying an accident that occurs in the power system, similar to the accident case number C10 described in FIG. The disengagement amount management table T2 is created for each system fault case. FIG. 3 shows a separation amount management table T2 for one accident case.

  The disconnected wind power generator C21 specifies the wind power generator 4 to be disconnected when the system fault identified by the accident case number C20 occurs, similarly to the disconnected wind power generator C12 described in FIG. Identification information. Hereinafter, a wind power generator that is disconnected when an assumed grid fault occurs may be referred to as a wind power generator to be disconnected.

  The disengagement amount C22 indicates the disengagement amount ΣK1 that is the total value of the power supply amount lost by the wind power generator 4 to be disengaged when the system fault identified by the accident case number C20 occurs. That is, the total amount of power generated by the operating wind power generator 4 shown in the disconnected wind power generator C21 is the disconnected power ΣK1 (in FIG. 3, ΣK1 = K11 + K13). The distribution amount C23 indicates a distribution amount ΔW1 that is a difference from a predetermined constraint value required for the power system.

  An output upper limit value management table T3 is shown on the lower side of FIG. 3. The output upper limit value management table T3 indicates the distribution amount that is the difference between the disengagement amount and the constraint value for each wind power generation to be disengaged It is a table for distributing to the machine 4. The output upper limit management table T3 manages, for example, the accident case number C30, the output upper limit C31 for each parallel wind turbine generator, and the distribution amount C32. An output upper limit management table T3 is also created for each accident case. FIG. 3 shows an output upper limit management table T3 for the same accident case as the amount-of-separation management table T2.

  The accident case number C30 is the same as the accident case numbers C10 and C20 described above. The output upper limit value C31 for each wind power generator indicates the output upper limit value of the wind power generator to be disconnected (the wind power generator currently operating and supplying power to the power system). The distribution amount C32 is the same as the above-described distribution amount C23.

  When a system fault identified by the accident case number C30 occurs, the upper limit value that can be output by the wind power generator 4 disconnected from the power system is distributed from the current power generation amount (K11, K13) and the distribution amount ΔW1. And the individual distribution amount (W11, W13). The current power generation amount means the latest value known by the wind power generator management device 10.

  The distribution amount ΔW1 takes either a positive or negative sign depending on the status of the power system. When the total value of the power generation amount of the wind power generator to be disconnected exceeds the constraint value, the distribution amount ΔW1 takes a negative sign (distribution amount = constraint value−total power generation amount value of the wind power generator to be disconnected). Therefore, in this case, since the individual distribution amount also takes a negative sign, the output upper limit value of the wind turbine generator to be disconnected decreases by the amount by which the individual distribution amount is subtracted from the current power generation amount.

  FIG. 3 shows an example in which the output upper limit values of the wind power generators “G11” and “G13” that are disconnected when the system fault of the accident case number “1” occurs are calculated as “K11 + W11” and “K13 + W13”, respectively. It is shown. The table configurations shown in FIGS. 2 and 3 are examples, and are not limited to the illustrated configurations.

  FIG. 4 is a flowchart showing a process for setting the output upper limit value of the wind power generator 4. This process may be performed automatically, for example, when a configuration change of the power system is detected, or may be performed at an arbitrary timing designated by the user.

  In this process, for each assumed system fault (for each accident case), the amount of disconnection is calculated based on the wind generator to be disconnected and the generator output (S12). In this process, based on the system fault with the largest amount of disengagement (S13), the distribution amount that is the difference between the constraint value and the disengagement amount is distributed and added to the generator output of each wind turbine to be disengaged (S14 to S17).

  In this process, the value after the distribution is completed is determined as the output upper limit value of each wind power generator, and the processed system fault is excluded from the subsequent processing targets, and the amount of disengagement for the unprocessed system fault is the same as described above. Is recalculated (S18). By repeating this series of processes, the output upper limit value of all wind power generators is determined.

  That is, the wind power generator management device 10 performs a simulation calculation of an accident case (system fault) that may occur in the power system (S10), and specifies the wind power generator 4 to be disconnected for each accident case (S11). Thereby, the wind power generator management apparatus 10 can create the disconnected generator management table T1. Furthermore, the wind power generator management device 10 calculates the amount of separation for each accident case, and updates the amount of separation management table T2 (S12).

  The wind power generator management device 10 selects the accident case with the maximum amount of disengagement among the assumed accident cases (S13), and calculates the distribution amount by the difference between the amount of disengagement and the constraint value (S14). The wind power generator management device 10 calculates the individual distribution amount to be distributed to the wind turbine generators 4 to be disconnected based on the distribution amounts calculated in step S14 and the number of wind power generators 4 to be disconnected. The total value of the distribution amount and the current power generation amount is obtained as the output upper limit value of the wind power generator 4 (S15).

  The wind power generator management device 10 updates the amount of disengagement (power generation amount) of each wind power generator 4 with the output upper limit value of the wind power generator 4 to be disconnected calculated in step S15 (S16). The wind power generator management apparatus 10 also updates the distribution amount with the update in step S16 (S17).

  The wind power generator management device 10 determines whether the processing has been completed for all accident cases assumed in step S10 (S18). The completion of the process means that the calculation of the output upper limit value has been completed for the wind power generator 4 to be disconnected in a certain accident case.

  When there is an unprocessed accident case (S18: NO), the wind power generator management device 10 returns to step S13, selects an accident case with the maximum amount of separation among unprocessed accident cases, and performs steps S14 to S18. repeat.

  When the wind power generator management device 10 calculates the output upper limit value for all assumed accident cases (S18: YES), the wind power generator management device 10 transmits and sets the calculated output upper limit value to each wind power generator 4 (S19). Accordingly, each wind power generator 4 generates power so as not to exceed the output upper limit value, and supplies the generated power to the power system. Note that the flowchart shown in FIG. 4 is an example and is not limited to the illustrated configuration. For example, step S10 for calculating an accident case may be replaced with a step for obtaining a result of a simulation calculation performed in advance by another computer. In addition, a new step (not shown) can be added to FIG. 4, several steps shown in FIG. 4 can be combined into one step, and vice versa. Also good.

  An example of a method for setting the output upper limit value of each wind power generator 4 from the current amount of separation will be described with reference to FIGS. 5 and 6. 5 and FIG. 6, an explanation will be given by taking an example of the amount-of-disconnection management table T2 for three accident cases.

  FIG. 5A shows a stage in which the wind power generator 4 to be disconnected is specified for each accident case (system fault) and the amount of disconnection is calculated. The wind power generator whose numerical value is set under the identification information G1 to G4 for identifying the wind power generator is the wind power generator to be disconnected.

  In the accident case 1 shown in FIG. 5A, the wind power generators G1 and G3 are to be disconnected, and the amount of disconnection is “6”. Similarly, in accident case 2, the wind power generators G2 and G4 are to be disconnected, and the amount of disconnection is “5”. In accident case 3, the wind power generators G2 and G3 are to be disconnected, and the amount of disconnection is “5”. The distribution amount column is blank.

  In the example shown in FIG. 5, it can be seen that the wind power generator G2 is disconnected in both accident cases 2 and 3, and the wind power generator G3 is disconnected in both accident cases 1 and 3. As described above, a plurality of wind power generators may be associated with one grid fault, or a single wind power generator 4 may be a target to be disconnected in a plurality of grid faults.

  FIG. 5B shows a stage in which the accident case with the maximum amount of separation is selected as a processing target and the distribution amount is obtained. Since the disengagement amount “6” is the maximum, accident case 1 is selected as a processing target. Here, the constraint value is “10”. Therefore, the distribution amount of accident case 1 is “4”.

  FIG. 5C shows a stage where the distribution amount “4” obtained in the accident case 1 is evenly distributed to the wind power generators G1 and G4 to be disconnected in the accident case 1. The initial power generation amount of the wind power generator G1 was “4”, but “2” obtained by dividing the distribution amount into two is added to this value. As a result, the power generation amount (output upper limit value) that can be output by the wind power generator G1 is “6” (6 = 4 + 2). Similarly, the power generation amount that can be output by the wind power generator G3 that is disconnected in the accident case 1 is “4” (4 = 2 + 2). Thus, in the present embodiment, the value obtained by dividing the distribution amount “4” by the number “2” of the wind power generators G1 and G3 to be disconnected is distributed as an individual distribution amount to the wind generators 4 to be disconnected. . As a result, the distribution amount “4” changes to “0”. And since the power generation amount of the wind power generators G1 and G3 to be disconnected in the accident case 1 is changed, the disconnection amount is changed from “6” to “10”.

  FIG. 5D shows a stage in which the processing result relating to the accident case 1 is reflected in the amount-of-disconnection management table T2. As described above, since the wind power generator G3 is involved in both the accident cases 1 and 3, the amount of the accident case 3 is changed from “5” to “7”. This is because the power generation amount of the wind power generator G3 has changed from “2” to “4”.

  FIG. 6A shows a stage where the accident case 2 is selected as the next processing object after the processing of the accident case 1 is completed and the distribution amount is obtained. As a result of the amount of separation increasing from “5” to “7”, accident case 2 is selected as a processing target. Since the constraint value is “10”, the distribution amount is “3”.

  FIG. 6B shows a stage in which the distribution amount “3” is distributed to the wind power generators that are disconnected in the accident case 2. In the accident case 3, the wind power generators G2 and G3 are disconnected, and among them, the power generation amount (output upper limit value) of the wind power generator G3 is already determined by the processing in the accident case 1. Therefore, all of the distribution amount “3” is distributed as individual distribution amounts to the wind power generator G2 for which the power generation amount has not yet been determined. As a result, the power generation amount that is the output upper limit value of the wind power generator G2 changes from “3” to “6”. In this way, among the wind power generators 4 that are arranged for a certain accident case, a value obtained by dividing the distribution amount by the number of unprocessed wind power generators is distributed as an individual distribution amount to the unprocessed wind generators, The total value of the power generation amount and the individual distribution amount is the output upper limit value.

  FIG. 6C shows a stage where the distribution amount is obtained by reflecting the processing result of the accident case 3 in the amount of separation of the accident case 2. Since the power generation amount of the wind power generator G2 to be disconnected in the accident case 2 has changed from “3” to “6”, the disconnection amount in the accident case 2 changes from “5” to “8”. Since the constraint value remains “10”, the distribution amount is “2”.

  FIG. 6 (d) shows a stage where the last remaining accident case 2 has been processed. The distribution amount “2” in the accident case 2 is all distributed to the unprocessed wind power generator G4 among the wind power generators G2 and G4 that are disconnected in the accident case 2.

  According to this embodiment configured as described above, the output upper limit value is sequentially determined for each wind power generator to be disconnected based on the system fault in which the amount of disconnection is the maximum. According to the present embodiment, it is only necessary to determine the output upper limit value by the number of assumed system faults, and therefore, the output upper limit values of all wind power generators can be determined in a short time with a relatively small amount of calculation. Therefore, according to this embodiment, even when the number of wind power generators connected to the power system increases, the calculation time is hardly affected. The output upper limit value of the machine can be set. As a result, the wind power generator 4 connected to the power system can generate power as much as possible within a range that does not impair the stability of the power system even when a grid fault occurs.

  As described above, in this embodiment, each wind power generator can be set with an appropriate output limit according to the configuration of the power system and the wind condition, and the stability of the power system and the efficient operation of the wind power generator You can maintain both.

  In addition, this invention is not limited to embodiment mentioned above. A person skilled in the art can make various additions and changes within the scope of the present invention.

  1: power system, 4: wind power generator, 10: wind power generator management device, 11: solution amount calculation unit, 12: upper limit value setting unit, 13: setting unit

Claims (8)

A wind power generator management device that manages a plurality of wind power generators connected to an electric power system,
A disengagement amount calculation unit that calculates a total value of power generation amounts of predetermined wind power generators disconnected from the power system in a predetermined case among the wind power generators as a disengagement amount;
An individual distribution amount for allocating to the predetermined wind power generator is calculated from a difference between the amount of separation and a predetermined constraint value, and a total value of the individual distribution amount and the power generation amount of the predetermined wind power generator is calculated. An upper limit calculation unit that calculates the upper limit of the power generation amount of the predetermined wind power generator;
Wind generator management device comprising.   The wind power generator management apparatus according to claim 1, further comprising a setting unit configured to transmit and set the upper limit value calculated by the upper limit value calculation unit to the predetermined wind power generator. The predetermined case is a case where a predetermined system fault occurs in the power system,
The separation amount calculation unit is
Identify the predetermined wind generator for each grid fault assumed in advance,
Calculate the amount of disconnection for each system fault,
The upper limit calculator is
Select the system fault having the maximum amount of disengagement among the amount of disengagement for each system fault as a system fault to be processed,
From the difference between the amount of the system fault to be processed and the predetermined constraint value, an individual distribution amount for distribution between the predetermined wind generators related to the system fault to be processed is calculated,
For each of the predetermined wind power generators related to the system fault to be processed, the total value of the power generation amount of the predetermined wind power generator and the individual distribution amount is the upper limit value of the power generation amount of the predetermined wind power generator. Operate as
The wind power generator management apparatus according to claim 1. The predetermined case is a case where a predetermined system fault occurs in the power system,
The separation amount calculation unit is
Identify the predetermined wind generator for each grid fault assumed in advance,
Calculate the amount of disconnection for each system fault,
The upper limit calculator is
Select the system fault having the maximum amount of disengagement among the amount of disengagement for each system fault as a system fault to be processed,
By calculating the difference between the amount of the system fault to be processed and the predetermined constraint value based on the number of the predetermined wind power generators related to the system fault to be processed, the individual distribution amount is calculated. calculate,
The wind power generator management apparatus according to claim 1. The predetermined case is a case where a predetermined system fault occurs in the power system,
The separation amount calculation unit is
Identify the predetermined wind generator for each grid fault assumed in advance,
Calculate the amount of disconnection for each system fault,
The upper limit calculator is
Select the system fault having the maximum amount of disengagement among the amount of disengagement for each system fault as a system fault to be processed,
The difference between the amount of disconnection of the system fault to be processed and the predetermined constraint value is calculated based on the number of the predetermined wind power generators related to the system fault of the processing target and the predetermined number of systems related to the system fault of the processing target. By calculating based on the possibility that the wind power generator is disconnected from the power system even when another system fault occurs, the individual distribution amount is calculated.
The wind power generator management apparatus according to claim 1. A wind power generator management method for managing a plurality of wind power generators connected to an electric power system using a computer,
The computer
Calculate the total value of the power generation amount of a predetermined wind generator that is disconnected from the power system in a predetermined case among the wind generators as a disconnection amount,
Calculating an individual distribution amount for distribution to the predetermined wind power generator from the difference between the amount of separation and the predetermined constraint value;
Calculating the total value of the individual distribution amount and the power generation amount of the predetermined wind power generator as the upper limit value of the power generation amount of the predetermined wind power generator;
Wind generator management method. Further, the upper limit value is set by transmitting to the predetermined wind power generator,
The wind power generator management method according to claim 6 . The predetermined case is a case where a predetermined system fault occurs in the power system,
The computer
Identify the predetermined wind generator for each grid fault assumed in advance,
A removal amount calculating step for calculating the removal amount for each system fault;
A system fault selection step of selecting a system fault having the maximum amount of disconnection as a system fault to be processed among the amount of disconnection for each system fault,
A distribution amount for calculating an individual distribution amount to be distributed among the predetermined wind power generators related to the processing target system fault from the difference between the amount of the system fault to be processed and the predetermined constraint value A calculation step;
For each of the predetermined wind power generators related to the system fault to be processed, the total value of the power generation amount of the predetermined wind power generator and the individual distribution amount is the upper limit value of the power generation amount of the predetermined wind power generator. An upper limit calculation step to calculate as
For all of the assumed system faults, executing the system fault selection step, the distribution amount calculation step, and the upper limit value calculation step;
For each of the wind power generators, transmitting and setting the upper limit value calculated in the upper limit value calculating step;
Run the
The wind power generator management method according to claim 6 .

Images