Primary frequency modulation response control method and system, medium and electronic equipment

Abstract

The invention provides a primary frequency modulation response control method and system, a medium and electronic equipment. The method comprises the steps that a frequency modulation signal is sent to an energy management platform and a primary frequency modulation controller; the energy management platform locks an instruction issued by the automatic power generation control module, and the primary frequency modulation controller determines a wind turbine generator capable of participating in control and determines an active power target value of the wind turbine generator; on the basis of the power prediction nervous system, determining the active power of each wind turbine generator set under the current wind condition; determining a single power target value of each wind turbine generator set in combination with the active power and the active power target value so as to perform power distribution on the corresponding wind turbine generator set; and when the sum of the actual generated power reaches an active power target value, the primary frequency modulation controller quits power control, and the energy management platform controls the automatic generation control module to perform active regulation and control. The frequency modulation response control method solves the problems that an existing frequency modulation response control method is slow in adjustment time and poor in adjustment precision.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid frequency regulation, and in particular to a primary frequency modulation response control method, system, medium and electronic equipment. Background Art

[0002] The power generation system is an electricity production and use system consisting of power plants, power transmission and transformation lines, power distribution stations, and power consumption. The traditional power system mainly uses thermal power and hydropower, and conducts grid power regulation, mainly including voltage, frequency, and power regulation. Under normal circumstances, the total active power generated and consumed by the power grid are balanced, and the frequency of the power grid system can be maintained at around the industrial frequency. When the power generated is greater than the power consumed, the system frequency rises; when the power generated is lower than the power consumed, the system frequency decreases.

[0003] When the grid frequency fluctuates, a frequency modulation response is required for the entire wind power generation field to stabilize the grid frequency around the operating frequency. However, the existing control method for primary frequency modulation response has a slow adjustment time and poor adjustment accuracy. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a primary frequency modulation response control method, system, medium and electronic device, which solve the problems of slow adjustment time and poor adjustment accuracy in the prior art frequency modulation response control method.

[0005] At least one embodiment of the present invention provides a primary frequency modulation response control method, comprising:

[0006] The frequency modulation signal is sent to the energy management platform and the primary frequency modulation controller respectively;

[0007] The energy management platform blocks the command issued by the automatic power generation control module after receiving the frequency modulation signal, and the primary frequency modulation controller determines the wind turbines that can participate in the control after receiving the frequency modulation signal;

[0008] Determining the active power target value of the wind turbine generator set that can participate in the control according to the frequency modulation signal;

[0009] Based on the power prediction neural system, determine the active power that each wind turbine that can participate in the control should generate under the current wind conditions;

[0010] Determine a single power target value of each wind turbine that can participate in the control by combining the active power to be generated and the active power target value, so as to distribute power to the corresponding wind turbine according to the single power target value;

[0011] When the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value, the primary frequency regulation controller exits power control, and the energy management platform controls the automatic power generation control module to perform active power regulation.

[0012] The technical solution disclosed in the present invention has at least the following beneficial effects:

[0013] The present invention sends the frequency modulation signal to the energy management platform and the primary frequency modulation controller respectively, and the primary frequency modulation controller directly determines the wind turbines that can participate in the control after receiving the frequency modulation signal. Compared with the prior art, in which the primary frequency modulation controller transmits information through the energy management platform, the adjustment speed is faster.

[0014] At the same time, the present invention also determines the active power target value of the wind turbines that can participate in the control according to the frequency modulation signal, and then determines the active power that each wind turbine that can participate in the control should generate under the current wind conditions based on the power prediction neural system, and then combines the active power that should be generated and the active power target value to determine the single power target value of each wind turbine that can participate in the control, so as to allocate power to the corresponding wind turbines according to the single power target value, so that the present invention greatly increases its adjustment accuracy during the primary frequency modulation response control, and meets the higher primary frequency modulation technical index requirements put forward by the power grid.

[0015] In a primary frequency modulation response control method provided in one embodiment of the present invention, combining the active power to be generated and the active power target value, determining a single power target value of each wind turbine that can participate in the control, so as to allocate power to the corresponding wind turbine according to the single power target value, including:

[0016] S1. Determine a single power target value of each wind turbine that can participate in control according to the proportion of active power that should be generated by each wind turbine that can participate in control under the current wind conditions, so as to allocate power to the corresponding wind turbine according to the single power target value;

[0017] S2. Obtain the actual power generation of each wind turbine that can participate in the control, take the sum of the actual power generation of all wind turbines that can participate in the control as the actual power generation of the entire field, and return to step S1 until the difference between the actual power generation of the entire field and the active power target value is less than a first preset value, then it is considered that the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value.

[0018] The technical solution disclosed in the present invention has at least the following beneficial effects:

[0019] By determining the single power target value of each wind turbine that can participate in control according to the proportion of active power that should be generated by each wind turbine that can participate in control under the current wind conditions, power is allocated to the corresponding wind turbine according to the single power target value. Since the execution speed of each wind turbine is slow after power allocation, and the power allocated each time is limited, in order to ensure regulation and control, the present invention also detects and obtains the actual power generation power of each wind turbine that can participate in control in real time, and repeatedly allocates power to the wind turbines until the difference between the actual power generation power of the entire field and the active power target value is less than a first preset value. Only then is it considered that the sum of the actual power generation powers of the wind turbines that can participate in control reaches the active power target value, thereby ensuring the regulation accuracy of a frequency modulation response control.

[0020] In a primary frequency modulation response control method provided in one embodiment of the present invention, combining the active power to be generated and the active power target value, determining a single power target value of each wind turbine that can participate in the control, so as to allocate power to the corresponding wind turbine according to the single power target value, including:

[0021] S1, obtaining the actual power generation of each wind turbine that can participate in the control, and taking the sum of the actual power generation of all wind turbines that can participate in the control as the actual power generation of the entire field, if the difference between the actual power generation of the entire field and the active power target value is greater than a first preset value, then proceeding to step S2, if the difference between the actual power generation of the entire field and the active power target value is less than the first preset value, then proceeding to step S3;

[0022] S2, according to the proportion of active power that each wind turbine that can participate in control should generate under the current wind conditions, determine the single power target value of each wind turbine that can participate in control, so as to distribute power to the corresponding wind turbine according to the single power target value, and return to step S1;

[0023] S3. Based on the actual power generation of the entire site, the active power that should be generated by each wind turbine that can participate in the control under the current wind conditions and the active power target value, power allocation is performed according to the preset fine-tuning logic, and the process returns to step S1 until the difference between the actual power generation of the entire site and the active power target value is less than a second preset value. It is then considered that the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value.

[0024] The technical solution disclosed in the present invention has at least the following beneficial effects:

[0025] The present invention enters the coarse adjustment logic control of step S2 and the fine adjustment logic control of step S3 respectively according to the difference between the actual power generation of the whole field and the active power target value, that is, if the difference between the actual power generation of the whole field and the active power target value is greater than the first preset value, the single power target value of each wind turbine that can participate in the control is determined according to the proportion of the active power that should be generated by each wind turbine that can participate in the control under the current wind conditions, so as to distribute power to the corresponding wind turbine according to the single power target value, until the difference between the actual power generation of the whole field and the active power target value is less than the first preset value, and then enters the fine adjustment logic control of step S3;

[0026] Through the above-mentioned coarse adjustment and fine adjustment logic control, the adjustment accuracy of the primary frequency modulation response control is further increased.

[0027] In a primary frequency modulation response control method provided in one embodiment of the present invention, step S2 includes:

[0028] Subtract the sum of all single power target values ​​from the actual power generation of the entire site, and add the product of the difference multiplied by the first preset parameter to the actual power generation of the entire site to obtain a difference variable;

[0029] If the difference variable is less than 0, the single power target value of all wind turbines that can participate in the control is adjusted to the minimum power allowed, and the process returns to step S1;

[0030] If the difference variable is greater than 0, the single power target value of each wind turbine that can participate in the control is determined according to the proportion of active power that each wind turbine that can participate in the control should generate under the current wind conditions, so as to allocate power to the corresponding wind turbine according to the single power target value and return to step S1.

[0031] The technical solution disclosed in the present invention has at least the following beneficial effects:

[0032] By using the results of more differentiated variables in the coarse adjustment logic control and adjusting the single power target value of the wind turbine that can participate in the control according to different adjustment methods, the adjustment accuracy of the primary frequency response control can be further increased.

[0033] In a primary frequency modulation response control method provided by one of the embodiments of the present invention, the primary frequency modulation controller and the wind turbine generator set are connected in communication via a high-speed text communication protocol.

[0034] The technical solution disclosed in the present invention has at least the following beneficial effects:

[0035] By adjusting the traditional single communication channel to a dual-channel communication mode and using high-speed text communication in wind power communication, the higher primary frequency regulation technical index requirements of the power grid can be met.

[0036] One embodiment of the present invention further provides a primary frequency modulation response control system, comprising: a host computer module connected to an energy management platform and a primary frequency modulation controller respectively, wherein the energy management platform and the primary frequency modulation controller are also respectively connected to a wind turbine generator set for communication;

[0037] The host computer module is used to send the frequency modulation signal to the energy management platform and the primary frequency modulation controller respectively;

[0038] The energy management platform blocks the command issued by the automatic power generation control module after receiving the frequency modulation signal, and the primary frequency modulation controller determines the wind turbines that can participate in the control after receiving the frequency modulation signal;

[0039] The primary frequency modulation controller is used to determine the active power target value of the wind turbine generator set that can participate in the control according to the frequency modulation signal;

[0040] The primary frequency regulation controller is used to determine the active power that each wind turbine that can participate in the control should generate under the current wind conditions based on the power prediction neural system;

[0041] The primary frequency modulation controller is used to determine the single power target value of each wind turbine that can participate in the control by combining the active power to be generated and the active power target value, so as to distribute power to the corresponding wind turbine according to the single power target value;

[0042] The primary frequency modulation controller is used to exit power control when the sum of the active power actually generated by the wind turbines that can participate in the control reaches the active power target value, and the energy management platform controls the automatic power generation control module to perform active power regulation.

[0043] In a primary frequency modulation response control system provided in one embodiment of the present invention, the primary frequency modulation controller further includes:

[0044] S1, obtaining the actual power generation of each wind turbine that can participate in the control, and taking the sum of the actual power generation of all wind turbines that can participate in the control as the actual power generation of the entire field, if the difference between the actual power generation of the entire field and the active power target value is greater than a first preset value, then proceeding to step S2, if the difference between the actual power generation of the entire field and the active power target value is less than the first preset value, then proceeding to step S3;

[0045] S2, according to the proportion of active power that each wind turbine that can participate in control should generate under the current wind conditions, determine the single power target value of each wind turbine that can participate in control, so as to distribute power to the corresponding wind turbine according to the single power target value, and return to step S1;

[0046] S3. Based on the actual power generation of the entire site, the active power that should be generated by each wind turbine that can participate in the control under the current wind conditions and the active power target value, power allocation is performed according to the preset fine-tuning logic, and the process returns to step S1 until the difference between the actual power generation of the entire site and the active power target value is less than a second preset value. It is then considered that the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value.

[0047] In a primary frequency modulation response control system provided in one embodiment of the present invention, the primary frequency modulation controller and the wind turbine generator set are connected in communication via a high-speed text communication protocol.

[0048] The present invention also provides a computer-readable storage medium, in which instructions are stored. When the instructions are executed on a terminal device, the terminal device executes a primary frequency modulation response control method as described above.

[0049] The present invention also provides an electronic device, comprising a memory, a processor, and a program stored in the memory and running on the processor, wherein the processor implements the above-mentioned primary frequency modulation response control method when executing the program. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a flow chart of a primary frequency modulation response control method of the present invention;

[0051] Figure 2 The present invention is a flow chart of a primary frequency modulation response control system. DETAILED DESCRIPTION

[0052] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0053] The present invention provides a primary frequency modulation response control method, please refer to Figure 1 As shown, including:

[0054] The frequency modulation signal is sent to the energy management platform and the primary frequency modulation controller respectively;

[0055] The energy management platform blocks the command issued by the automatic power generation control module after receiving the frequency modulation signal, and the primary frequency modulation controller determines the wind turbines that can participate in the control after receiving the frequency modulation signal;

[0056] Determining the active power target value of the wind turbine generator set that can participate in the control according to the frequency modulation signal;

[0057] Based on the power prediction neural system, determine the active power that each wind turbine that can participate in the control should generate under the current wind conditions;

[0058] Determine a single power target value of each wind turbine that can participate in the control by combining the active power to be generated and the active power target value, so as to distribute power to the corresponding wind turbine according to the single power target value;

[0059] When the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value, the primary frequency regulation controller exits power control, and the energy management platform controls the automatic power generation control module to perform active power regulation.

[0060] It should be understood that in the actual primary regulation response control process of the present invention, power allocation is also required for wind turbines that cannot participate in the control. Considering that the power allocated to wind turbines that cannot participate in the control is always their actual power generation power, for the convenience of understanding and description, the power allocation, active power target value, single-unit active power target value and actual active power of the entire field referred to in this article do not take into account wind turbines that cannot participate in the control.

[0061] The present invention sends the frequency modulation signal to the energy management platform and the primary frequency modulation controller respectively, and the primary frequency modulation controller directly determines the wind turbines that can participate in the control after receiving the frequency modulation signal. Compared with the prior art, in which the primary frequency modulation controller transmits information through the energy management platform, the adjustment speed is faster.

[0062] In order to meet the requirement that wind power generation equipment has the ability to execute primary frequency regulation response technical indicators that are higher than the national standard technical indicators, the present invention proposes the above-mentioned frequency regulation response through dual-channel energy control. First, an efficient communication method is established based on the industrial computer hardware. Secondly, the current energy control allocation logic is decomposed, and the primary frequency regulation function of the current energy management platform is cancelled. According to the IEC61131-3 standard, the primary frequency regulation power calculation and allocation function is developed on the industrial computer using the ST language. Finally, by opening the communication interface between the primary frequency regulation controller and the energy management platform and the wind turbine and the host computer, the power control locking function of the energy management platform and the primary frequency regulation controller during the frequency regulation period is realized.

[0063] At the same time, the present invention also determines the active power target value of the wind turbines that can participate in the control according to the frequency modulation signal, and then determines the active power that each wind turbine that can participate in the control should generate under the current wind conditions based on the power prediction neural system, and then combines the active power that should be generated and the active power target value to determine the single power target value of each wind turbine that can participate in the control, so as to allocate power to the corresponding wind turbines according to the single power target value, so that the present invention greatly increases its adjustment accuracy during the primary frequency modulation response control, and meets the higher primary frequency modulation technical index requirements put forward by the power grid.

[0064] In one of the embodiments, the above-mentioned combination of the active power to be generated and the active power target value to determine the single power target value of each wind turbine that can participate in the control, so as to allocate power to the corresponding wind turbine according to the single power target value, can be:

[0065] S1. Determine a single power target value of each wind turbine that can participate in control according to the proportion of active power that should be generated by each wind turbine that can participate in control under the current wind conditions, so as to allocate power to the corresponding wind turbine according to the single power target value;

[0066] S2. Obtain the actual power generation of each wind turbine that can participate in the control, take the sum of the actual power generation of all wind turbines that can participate in the control as the actual power generation of the entire field, and return to step S1 until the difference between the actual power generation of the entire field and the active power target value is less than a first preset value, then it is considered that the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value.

[0067] By determining the single power target value of each wind turbine that can participate in control according to the proportion of active power that should be generated by each wind turbine that can participate in control under the current wind conditions, power is allocated to the corresponding wind turbine according to the single power target value. Since the execution speed of each wind turbine is slow after power allocation, and the power allocated each time is limited, in order to ensure regulation and control, the present invention also detects and obtains the actual power generation power of each wind turbine that can participate in control in real time, and repeatedly allocates power to the wind turbines until the difference between the actual power generation power of the entire field and the active power target value is less than a first preset value. Only then is it considered that the sum of the actual power generation powers of the wind turbines that can participate in control reaches the active power target value, thereby ensuring the regulation accuracy of a frequency modulation response control.

[0068] In another embodiment, the above-mentioned combination of the active power to be generated and the active power target value is used to determine the single power target value of each wind turbine that can participate in the control, so as to allocate power to the corresponding wind turbine according to the single power target value. It can also be:

[0069] S1, obtaining the actual power generation of each wind turbine that can participate in the control, and taking the sum of the actual power generation of all wind turbines that can participate in the control as the actual power generation of the entire field, if the difference between the actual power generation of the entire field and the active power target value is greater than a first preset value, then proceeding to step S2, if the difference between the actual power generation of the entire field and the active power target value is less than the first preset value, then proceeding to step S3;

[0070] S2, according to the proportion of active power that each wind turbine that can participate in control should generate under the current wind conditions, determine the single power target value of each wind turbine that can participate in control, so as to distribute power to the corresponding wind turbine according to the single power target value, and return to step S1;

[0071] S3. Based on the actual power generation of the entire site, the active power that should be generated by each wind turbine that can participate in the control under the current wind conditions and the active power target value, power allocation is performed according to the preset fine-tuning logic, and the process returns to step S1 until the difference between the actual power generation of the entire site and the active power target value is less than a second preset value. It is then considered that the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value.

[0072] The present invention enters the coarse adjustment logic control of step S2 and the fine adjustment logic control of step S3 respectively according to the difference between the actual power generation of the whole field and the active power target value, that is, if the difference between the actual power generation of the whole field and the active power target value is greater than the first preset value, the single power target value of each wind turbine that can participate in the control is determined according to the proportion of the active power that should be generated by each wind turbine that can participate in the control under the current wind conditions, so as to distribute power to the corresponding wind turbine according to the single power target value, until the difference between the actual power generation of the whole field and the active power target value is less than the first preset value, and then enters the fine adjustment logic control of step S3;

[0073] Through the above-mentioned coarse adjustment and fine adjustment logic control, the adjustment accuracy of the primary frequency modulation response control is further increased.

[0074] Specifically, the step S2 includes:

[0075] Subtract the sum of all single power target values ​​from the actual power generation of the entire site, and add the product of the difference multiplied by the first preset parameter to the actual power generation of the entire site to obtain a difference variable;

[0076] If the difference variable is less than 0, the single power target value of all wind turbines that can participate in the control is adjusted to the minimum power allowed, and the process returns to step S1;

[0077] If the difference variable is greater than 0, the single power target value of each wind turbine that can participate in the control is determined according to the proportion of active power that each wind turbine that can participate in the control should generate under the current wind conditions, so as to allocate power to the corresponding wind turbine according to the single power target value and return to step S1.

[0078] By using the results of more differentiated variables in the coarse adjustment logic control and adjusting the single power target value of the wind turbine that can participate in the control according to different adjustment methods, the adjustment accuracy of the primary frequency response control can be further increased.

[0079] Specifically, the primary frequency modulation controller and the wind turbine generator set are connected in communication via a high-speed text communication protocol.

[0080] By adjusting the traditional single communication channel to a dual-channel communication mode and using high-speed text communication in wind power communication, the higher primary frequency regulation technical index requirements of the power grid can be met.

[0081] In summary, the control principle of the present invention is as follows:

[0082] The first frequency modulation response controller uses a high-speed communication text structure to establish a high-speed communication channel with the wind turbine generator set, forming a dual-channel energy control mode with the energy management platform;

[0083] The frequency modulation signal is sent to the energy management platform and the primary frequency modulation controller respectively;

[0084] The energy management platform blocks the command issued by the automatic power generation control module after receiving the frequency modulation signal, and the primary frequency modulation controller determines the wind turbines that can participate in the control after receiving the frequency modulation signal;

[0085] Determining the active power target value of the wind turbine generator set that can participate in the control according to the frequency modulation signal;

[0086] By acquiring the long-term operation data of all wind turbines in the field: wind speed, power, power generation speed, blade angle and other key data, the power curve to be generated can be dynamically fitted, and then the active power to be generated by each wind turbine that can participate in the control under the current wind conditions can be determined based on the power prediction neural system;

[0087] S1. Obtain the actual power generation of each wind turbine that can participate in the control, and take the sum of the actual power generation of all wind turbines that can participate in the control as the actual power generation of the whole field. At the same time, take the difference between the active power target value and the actual power generation of the whole field in this cycle as the first sent value, take the difference between the largest first sent value and the current sent value within the first preset time of 60s as the first pending sent value, take the difference between the smallest first sent value and the current sent value within 60s as the second pending sent value, and take the larger of the first pending sent value and the second pending sent value as the judgment sent value; if the difference between the actual power generation of the whole field and the active power target value is greater than the first preset value of 5000kw and the judgment sent value is greater than the second preset value of 100kw, then enter the coarse control logic step S2; if the difference between the actual power generation of the whole field and the active power target value is less than the first preset value of 5000kw or the judgment sent value is less than 100kw, then enter the fine control logic step S3;

[0088] S2. Subtract the sum of the power target values ​​of all single units from the actual power generation of the entire site, and add the product of the difference multiplied by the first preset parameter to the actual power generation of the entire site to obtain a difference variable;

[0089] If the difference variable is less than 0, the single power target value of all wind turbines that can participate in the control is adjusted to the minimum power allowed, and the process returns to step S1;

[0090] If the difference variable is greater than 0, then the single power target value of each wind turbine that can participate in the control is determined according to the proportion of active power that should be generated by each wind turbine that can participate in the control under the current wind conditions, so as to allocate power to the corresponding wind turbine according to the single power target value, and return to step S1;

[0091] S3, according to the actual power generation of the whole field, the active power that should be generated by each wind turbine that can participate in the control under the current wind conditions and the active power target value, power allocation is performed according to the preset fine-tuning logic, and the process returns to step S1, until the difference between the actual power generation of the whole field and the active power target value is less than the second preset value, then it is considered that the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value;

[0092] Specifically, the preset fine-tuning logic includes multiplying the second preset parameter 0.95 by the first issued value as a judgment parameter. Figure 2In the figure, △ indicates that if the judgment parameter is greater than 0, and the judgment parameter is greater than 0.95 times of the second preset parameter of the actual power generation of the wind turbine group that can participate in the control, then for the wind turbine group that can participate in the control and the difference between the set power generation and the actual power generation is less than 20kw, its set value is updated to the actual power generation plus 1 / 2 times the judgment parameter multiplied by the active power to be generated, and then divided by the sum of the active powers to be generated; if the judgment parameter is less than 0.95 times of the second preset parameter of the actual power generation of the wind turbine group that can participate in the control, then for the wind turbine group that can participate in the control and the difference between the set power generation and the actual power generation is less than 20kw, its set value is updated to the actual power generation + 1 / 2 multiplied by the difference between the active power to be generated and the actual power generation, and then divided by the sum of the active powers to be generated. The sum of the power and the actual power generation, and finally add 1 / 2 multiplied by the judgment parameter and then multiplied by the corresponding active power to be generated divided by the sum of the active powers to be generated; if the judgment parameter is less than 0, judge whether the judgment parameter is less than -500*0.95. If the judgment parameter is less than -500*0.95, divide the judgment parameter by 200 as the number N of units that need to reduce power, and for the first N wind turbines that can participate in control according to the actual power generation from large to small, update the set value of the above wind turbine to the actual power generation -200, and for other wind turbines that can participate in control, update their set value to the smaller of the actual power generation + 20kw and the set value to avoid over-generation; if the judgment parameter is greater than -500*0.95, no power allocation adjustment is made in this cycle.

[0093] When the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value, the primary frequency regulation controller exits power control, and the energy management platform controls the automatic power generation control module to perform active power regulation.

[0094] Finally, the present invention can also adjust the first preset parameter, the first preset duration, the first preset value, and the second preset value according to the effect of the current active control, so as to achieve a more accurate or faster control effect.

[0095] One embodiment of the present invention further provides a primary frequency modulation response control system, comprising: a host computer module connected to an energy management platform and a primary frequency modulation controller respectively, wherein the energy management platform and the primary frequency modulation controller are also respectively connected to a wind turbine generator set for communication;

[0096] The host computer module is used to send the frequency modulation signal to the energy management platform and the primary frequency modulation controller respectively;

[0097] The energy management platform blocks the command issued by the automatic power generation control module after receiving the frequency modulation signal, and the primary frequency modulation controller determines the wind turbines that can participate in the control after receiving the frequency modulation signal;

[0098] The primary frequency modulation controller is used to determine the active power target value of the wind turbine generator set that can participate in the control according to the frequency modulation signal;

[0099] The primary frequency regulation controller is used to determine the active power that each wind turbine that can participate in the control should generate under the current wind conditions based on the power prediction neural system;

[0100] The primary frequency modulation controller is used to determine the single power target value of each wind turbine that can participate in the control by combining the active power to be generated and the active power target value, so as to distribute power to the corresponding wind turbine according to the single power target value;

[0101] The primary frequency modulation controller is used to exit power control when the sum of the active power actually generated by the wind turbines that can participate in the control reaches the active power target value, and the energy management platform controls the automatic power generation control module to perform active power regulation.

[0102] In a primary frequency modulation response control system provided in one embodiment of the present invention, the primary frequency modulation controller further includes:

[0103] S1, obtaining the actual power generation of each wind turbine that can participate in the control, and taking the sum of the actual power generation of all wind turbines that can participate in the control as the actual power generation of the entire field, if the difference between the actual power generation of the entire field and the active power target value is greater than a first preset value, then proceeding to step S2, if the difference between the actual power generation of the entire field and the active power target value is less than the first preset value, then proceeding to step S3;

[0104] S2, according to the proportion of active power that each wind turbine that can participate in control should generate under the current wind conditions, determine the single power target value of each wind turbine that can participate in control, so as to distribute power to the corresponding wind turbine according to the single power target value, and return to step S1;

[0105] S3. Based on the actual power generation of the entire site, the active power that should be generated by each wind turbine that can participate in the control under the current wind conditions and the active power target value, power allocation is performed according to the preset fine-tuning logic, and the process returns to step S1 until the difference between the actual power generation of the entire site and the active power target value is less than a second preset value. It is then considered that the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value.

[0106] Specifically, step S2 includes:

[0107] Subtract the sum of all single power target values ​​from the actual power generation of the entire site, and add the product of the difference multiplied by the first preset parameter to the actual power generation of the entire site to obtain a difference variable;

[0108] If the difference variable is less than 0, the single power target value of all wind turbines that can participate in the control is adjusted to the minimum power allowed, and the process returns to step S1;

[0109] If the difference variable is greater than 0, the single power target value of each wind turbine that can participate in the control is determined according to the proportion of active power that each wind turbine that can participate in the control should generate under the current wind conditions, so as to allocate power to the corresponding wind turbine according to the single power target value and return to step S1.

[0110] In a primary frequency modulation response control system provided in one embodiment of the present invention, the primary frequency modulation controller and the wind turbine generator set are connected in communication via a high-speed text communication protocol.

[0111] The present invention also provides a computer-readable storage medium, in which instructions are stored. When the instructions are executed on a terminal device, the terminal device executes a primary frequency modulation response control method as described above.

[0112] The present invention also provides an electronic device, comprising a memory, a processor, and a program stored in the memory and running on the processor, wherein the processor implements the above-mentioned primary frequency modulation response control method when executing the program.

[0113] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0114] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0115] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0116] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A primary frequency modulation response control method, characterized in that: include: The frequency modulation signal is sent to the energy management platform and the primary frequency modulation controller respectively; The energy management platform blocks the command issued by the automatic power generation control module after receiving the frequency modulation signal, and the primary frequency modulation controller determines the wind turbines that can participate in the control after receiving the frequency modulation signal; Determine the active power target value of the wind turbine generator set that can participate in the control according to the frequency modulation signal; Based on the power prediction neural system, determine the active power that each wind turbine that can participate in control should generate under the current wind conditions; Determine a single power target value of each wind turbine that can participate in the control by combining the active power to be generated and the active power target value, so as to distribute power to the corresponding wind turbine according to the single power target value; When the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value, the primary frequency regulation controller exits power control, and the energy management platform controls the automatic power generation control module to perform active power regulation.

2. A primary frequency modulation response control method according to claim 1, characterized in that: Combining the active power to be generated and the active power target value, determining a single power target value of each wind turbine that can participate in the control, so as to distribute power to the corresponding wind turbine according to the single power target value, including: S1. Determine a single power target value of each wind turbine that can participate in control according to the proportion of active power that should be generated by each wind turbine that can participate in control under the current wind conditions, so as to allocate power to the corresponding wind turbine according to the single power target value; S2. Obtain the actual power generation of each wind turbine that can participate in the control, take the sum of the actual power generation of all wind turbines that can participate in the control as the actual power generation of the entire field, and return to step S1 until the difference between the actual power generation of the entire field and the active power target value is less than a first preset value, then it is considered that the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value.

3. A primary frequency modulation response control method according to claim 1, characterized in that: Combining the active power to be generated and the active power target value, determining a single power target value of each wind turbine that can participate in the control, so as to distribute power to the corresponding wind turbine according to the single power target value, including: S1, obtaining the actual power generation of each wind turbine that can participate in the control, and taking the sum of the actual power generation of all wind turbines that can participate in the control as the actual power generation of the entire field, if the difference between the actual power generation of the entire field and the active power target value is greater than a first preset value, then proceeding to step S2, if the difference between the actual power generation of the entire field and the active power target value is less than the first preset value, then proceeding to step S3; S2, according to the proportion of active power that each wind turbine that can participate in control should generate under the current wind conditions, determine the single power target value of each wind turbine that can participate in control, so as to distribute power to the corresponding wind turbine according to the single power target value, and return to step S1; S3. Based on the actual power generation of the entire site, the active power that should be generated by each wind turbine that can participate in the control under the current wind conditions and the active power target value, power allocation is performed according to the preset fine-tuning logic, and the process returns to step S1 until the difference between the actual power generation of the entire site and the active power target value is less than a second preset value. It is then considered that the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value.

4. A primary frequency modulation response control method according to claim 3, characterized in that: The step S2 comprises: Subtract the sum of all single power target values ​​from the actual power generation of the entire site, and add the product of the difference multiplied by the first preset parameter to the actual power generation of the entire site to obtain a difference variable; If the difference variable is less than 0, the single power target value of all wind turbines that can participate in the control is adjusted to the minimum power allowed, and the process returns to step S1; If the difference variable is greater than 0, the single power target value of each wind turbine that can participate in the control is determined according to the proportion of active power that each wind turbine that can participate in the control should generate under the current wind conditions, so as to allocate power to the corresponding wind turbine according to the single power target value and return to step S1.

5. The primary frequency modulation response control method according to claim 1, characterized in that: The primary frequency modulation controller and the wind turbine generator set are connected in communication via a high-speed text communication protocol.

6. A primary frequency modulation response control system, characterized in that: include: A host computer module connected to the energy management platform and the primary frequency regulation controller respectively, wherein the energy management platform and the primary frequency regulation controller are also respectively connected to the wind turbine generator set for communication; The host computer module is used to send the frequency modulation signal to the energy management platform and the primary frequency modulation controller respectively; The energy management platform blocks the command issued by the automatic power generation control module after receiving the frequency modulation signal, and the primary frequency modulation controller determines the wind turbines that can participate in the control after receiving the frequency modulation signal; The primary frequency modulation controller is used to determine the active power target value of the wind turbine generator set that can participate in the control according to the frequency modulation signal; The primary frequency regulation controller is used to determine the active power that each wind turbine that can participate in the control should generate under the current wind conditions based on the power prediction neural system; The primary frequency modulation controller is used to determine the single power target value of each wind turbine that can participate in the control by combining the active power to be generated and the active power target value, so as to distribute power to the corresponding wind turbine according to the single power target value; The primary frequency modulation controller is used to exit power control when the sum of the active power actually generated by the wind turbines that can participate in the control reaches the active power target value, and the energy management platform controls the automatic power generation control module to perform active power regulation.

7. A primary frequency modulation response control system according to claim 6, characterized in that: The primary frequency modulation controller also includes: S1, obtaining the actual power generation of each wind turbine that can participate in the control, and taking the sum of the actual power generation of all wind turbines that can participate in the control as the actual power generation of the entire field, if the difference between the actual power generation of the entire field and the active power target value is greater than a first preset value, then proceeding to step S2, if the difference between the actual power generation of the entire field and the active power target value is less than the first preset value, then proceeding to step S3; S2, according to the proportion of active power that each wind turbine that can participate in control should generate under the current wind conditions, determine the single power target value of each wind turbine that can participate in control, so as to distribute power to the corresponding wind turbine according to the single power target value, and return to step S1; S3. Based on the actual power generation of the entire site, the active power that should be generated by each wind turbine that can participate in the control under the current wind conditions and the active power target value, power allocation is performed according to the preset fine-tuning logic, and the process returns to step S1 until the difference between the actual power generation of the entire site and the active power target value is less than a second preset value. It is then considered that the sum of the actual power generation of the wind turbines that can participate in the control reaches the active power target value.

8. A primary frequency modulation response control system according to claim 6, characterized in that: The primary frequency modulation controller and the wind turbine generator set are connected in communication via a high-speed text communication protocol.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed on a terminal device, the terminal device executes a primary frequency modulation response control method as claimed in any one of claims 1 to 5.

10. An electronic device comprising a memory, a processor, and a program stored in the memory and running on the processor, characterized in that: When the processor executes the program, a primary frequency modulation response control method as claimed in any one of claims 1 to 5 is implemented.

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