Power control method and device for multi-energy complementary combined power generation system

Abstract

The invention discloses a power control method and device for a multi-energy complementary combined power generation system, and relates to the technical field of new energy power generation. Working condition parameters of the multi-energy complementary combined power generation system are collected according to preset monitoring time, and multi-energy power generation power analysis is carried out on the working condition parameters; the method comprises the following steps: obtaining a system power parameter and an average renewable energy power difference, carrying out power deviation analysis on the system power parameter and a working condition parameter to obtain a corresponding power control parameter, and carrying out dynamic power control on the multi-energy complementary combined power generation system by adopting the power control parameter and the average renewable energy power difference. The technical problems that an existing multi-energy complementary combined power generation system uses a high-capacity energy storage battery to protect a device, power generation equipment is cut off after the voltage is larger than a set value, the energy storage battery is used for independently supplying power to a load, and the operation reliability of the multi-energy complementary combined power generation system is reduced are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of renewable energy power generation, and in particular to a power control method and device for a multi-energy complementary combined power generation system. Background Art

[0002] With the continuous progress of various new energy technologies such as wind energy, solar energy, and wave energy, a large number of distributed wind, solar, and wave power generation devices have begun to be used. Due to the inherent limitations of renewable energy, the power of this type of multi-energy complementary combined power generation system shows strong randomness and volatility, which has an adverse effect on electrical equipment and power grids in practical applications. How to balance the power of multi-energy complementary combined power generation systems and maximize the use of wind, solar, and thermal resources is of great significance to energy conservation and emission reduction.

[0003] At present, the existing multi-energy complementary combined power generation system uses high-capacity energy storage batteries to protect the device. When the voltage is greater than the set value, the power generation equipment is cut off and the load is powered by the energy storage battery alone. The working status of the system is not judged from the perspective of the entire device, and the working status of each power generation equipment is not dynamically adjusted, which reduces the reliability of the operation of the multi-energy complementary combined power generation system. Summary of the invention

[0004] The present invention provides a power control method and device for a multi-energy complementary combined power generation system, which solves the technical problem that the existing multi-energy complementary combined power generation system uses a high-capacity energy storage battery to protect the device, cuts off the power generation equipment after the voltage is greater than the set value, uses the energy storage battery to power the load alone, does not judge the working state of the system from the perspective of the entire device, and dynamically adjusts the working state of each power generation equipment, thereby reducing the reliability of the operation of the multi-energy complementary combined power generation system.

[0005] A first aspect of the present invention provides a power control method for a multi-energy complementary combined power generation system, comprising:

[0006] Collecting the operating parameters of the multi-energy complementary combined power generation system according to the preset monitoring time, and performing multi-energy power generation power analysis on the operating parameters to obtain the system power parameters and the average renewable energy power difference;

[0007] Performing power deviation analysis on the system power parameter and the operating condition parameter to obtain corresponding power control parameters;

[0008] The power control parameter and the average renewable energy power difference are used to perform dynamic power control on the multi-energy complementary combined power generation system.

[0009] Optionally, the operating parameters include DC load power, AC load power, station power, total power of wave power generator group, total power of wind power generator group, total power of photovoltaic power generation group, total power consumption of hydrogen production module group, total energy storage charging power, renewable power generation power, total power generation power of hydrogen fuel cell group and total energy storage discharge power. The step of performing multi-energy power generation power analysis on the operating parameters to obtain the system power parameters and the average renewable energy power difference includes:

[0010] Adding the DC load power, the AC load power and the station power to obtain a corresponding total load power;

[0011] The total power of the wave energy generator group, the total power of the wind energy generator group and the total power of the photovoltaic power generation group are added together to obtain the corresponding renewable power generation power;

[0012] The total load power, the total power consumption of the hydrogen production module group and the total energy storage charging power are added together to obtain a corresponding total power consumption;

[0013] The renewable power generation power, the total power generation power of the hydrogen fuel cell group and the total energy storage discharge power are added together to obtain the corresponding total power generation power;

[0014] Using the total load power, the renewable power generation power, the total power consumption and the total power generation power as system power parameters;

[0015] The renewable power generation power and the total load power are subjected to difference processing to obtain an average renewable energy power difference.

[0016] Optionally, the step of performing power deviation analysis on the system power parameter and the operating condition parameter to obtain corresponding power control parameters includes:

[0017] Adding the renewable power generation to the total power generation of the hydrogen fuel cell group to obtain a first sum value;

[0018] The total load power and the total power consumption of the hydrogen production module group are added together to obtain a second sum value;

[0019] Performing difference processing on the first sum value and the second sum value to obtain an adjusted power;

[0020] The total generated power and the total consumed power are subjected to difference processing to obtain a real-time power deviation value, and the real-time power deviation and the adjusted power are used as power control parameters.

[0021] Optionally, the step of dynamically controlling the power of the multi-energy complementary combined power generation system by using the power control parameter and the average renewable energy power difference comprises:

[0022] Performing average power control on the multi-energy complementary combined power generation system based on the average renewable energy power difference;

[0023] Based on the power control parameters, real-time power difference control is performed on the multi-energy complementary combined power generation system.

[0024] Optionally, the step of performing average power control on the multi-energy complementary combined power generation system based on the average renewable energy power difference comprises:

[0025] When the average renewable energy power difference is less than a preset average power adjustment threshold, the number of hydrogen fuel cells started in the multi-energy complementary combined power generation system is obtained according to a preset first adjustment time;

[0026] Performing absolute value processing on the average renewable energy power difference to obtain a first absolute value;

[0027] Performing ratio processing on the first absolute value and a preset first optimal power generation to obtain a first theoretical startup number;

[0028] When the number of hydrogen fuel cells started is not equal to the first theoretical number of hydrogen fuel cells started, the hydrogen fuel cell group of the multi-energy complementary combined power generation system is controlled to perform power generation adjustment operations until the total power generation power of the hydrogen fuel cell group of the multi-energy complementary combined power generation system is equal to the first absolute value;

[0029] When the average renewable energy power difference is greater than the average power adjustment threshold, the hydrogen fuel cell group is turned off, and the number of hydrogen production modules of the multi-energy complementary combined power generation system is obtained according to the first adjustment time;

[0030] The average renewable energy power difference is processed by ratio with a preset second optimal power generation power to obtain a second theoretical startup number;

[0031] When the number of the hydrogen production modules is not equal to the second theoretical startup number, the hydrogen production module group is controlled to perform charging power adjustment operations until the total power consumption of the hydrogen production module group of the multi-energy complementary joint power generation system is equal to the average renewable energy power difference.

[0032] Optionally, the step of performing real-time power difference control on the multi-energy complementary combined power generation system based on the power control parameter comprises:

[0033] When the real-time power deviation of the power control parameter is not equal to the preset real-time power adjustment threshold, the energy storage battery group of the multi-energy complementary combined power generation system is divided according to the preset division condition to obtain a charging group and a discharging group;

[0034] When the adjustment power of the power control parameter is greater than the real-time power adjustment threshold, the charging group is controlled to perform a charging operation and the discharging group is controlled to perform a charging regulation operation until the total energy storage discharge power of the multi-energy complementary combined power generation system is equal to the real-time power adjustment threshold, and the real-time power deviation of the multi-energy complementary combined power generation system within a preset second adjustment time is obtained as the target power deviation data;

[0035] When the regulated power is less than the real-time power regulation threshold, the discharging group is controlled to perform a discharging operation and the charging group is controlled to perform a discharging regulation operation until the total energy storage charging power of the multi-energy complementary combined power generation system is equal to the real-time power regulation threshold;

[0036] Performing absolute value processing on the regulated power to obtain a second absolute value, and obtaining the maximum discharge power of the energy storage battery group at the current moment;

[0037] When the maximum discharge power of the energy storage group is less than the second absolute value, performing difference processing between the second absolute value and the maximum discharge power of the energy storage group to obtain a first difference;

[0038] Controlling the hydrogen fuel cell group of the multi-energy complementary combined power generation system to perform a power compensation operation until the increased power generation of the hydrogen fuel cell group is greater than the first difference, and obtaining the real-time power deviation of the multi-energy complementary combined power generation system within a preset second adjustment time as target power deviation data;

[0039] Power regulation and control is performed on the multi-energy complementary combined power generation system according to the target power deviation data.

[0040] Optionally, the step of performing power control processing on the multi-energy complementary combined power generation system according to the target power deviation data includes:

[0041] When any real-time power deviation in the target power deviation data is equal to the real-time power adjustment threshold, the multi-energy complementary combined power generation system is kept in the current operating state and continues to operate;

[0042] When each real-time power deviation in the target power deviation data is greater than the real-time power adjustment threshold, the average power generation power of each power generation equipment in the multi-energy complementary joint power generation system is obtained according to the preset third adjustment time;

[0043] Performing ratio processing on each average power generation and a preset rated power respectively to obtain a first ratio corresponding to each power generation device;

[0044] A power generation device corresponding to a minimum value is selected from each of the first ratios as a target power generation device, and the target power generation device is cut off, and the step of obtaining the real-time power deviation of the multi-energy complementary combined power generation system as a target power deviation according to the preset second adjustment time is jumped to execute until the target power deviation is equal to the real-time power adjustment threshold;

[0045] When each real-time power deviation in the target power deviation data is less than the real-time power adjustment threshold, the importance value of each load in the multi-energy complementary joint power generation system is obtained;

[0046] A load corresponding to the minimum value is selected from each of the importance values ​​as the target load, and the target load is cut off, and the step of obtaining the real-time power deviation of the multi-energy complementary combined power generation system as the target power deviation according to the preset second adjustment time is jumped to execute until the target power deviation is equal to the real-time power adjustment threshold.

[0047] A second aspect of the present invention provides a power control device for a multi-energy complementary combined power generation system, comprising:

[0048] A collection module is used to collect the operating parameters of the multi-energy complementary combined power generation system according to a preset monitoring time, and perform multi-energy power generation power analysis on the operating parameters to obtain the system power parameters and the average renewable energy power difference;

[0049] An analysis module, used for performing power deviation analysis on the system power parameter and the operating condition parameter to obtain corresponding power control parameters;

[0050] A control module is used to dynamically control the power of the multi-energy complementary combined power generation system by using the power control parameter and the average renewable energy power difference.

[0051] A third aspect of the present invention provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the power control method of a multi-energy complementary combined power generation system as described in any one of the above items.

[0052] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed, implements a power control method for a multi-energy complementary combined power generation system as described in any one of the above items.

[0053] It can be seen from the above technical solutions that the present invention has the following advantages:

[0054] The present invention collects the operating parameters of the multi-energy complementary combined power generation system according to the preset monitoring time, determines the power control parameters and the average renewable energy power of the multi-energy complementary combined power generation system according to the operating parameters, and judges the power generation state of the multi-energy complementary combined power generation system through the power control parameters and the average renewable energy power, so as to better adjust the utilization ratio of each energy source and improve the overall power generation efficiency. It solves the technical problem that the existing multi-energy complementary combined power generation system uses a high-capacity energy storage battery to protect the device, cuts off the power generation equipment after the voltage is greater than the set value, uses the energy storage battery to power the load alone, does not judge the working state of the system from the perspective of the entire device, and dynamically adjusts the working state of each power generation equipment, which reduces the reliability of the operation of the multi-energy complementary combined power generation system. And it enables the system to absorb new energy electricity to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0056] Figure 1 A flowchart of a power control method for a multi-energy complementary combined power generation system provided in Embodiment 1 of the present invention;

[0057] Figure 2 A flowchart of a power control method for a multi-energy complementary combined power generation system provided in Embodiment 2 of the present invention;

[0058] Figure 3 A schematic diagram of the structure of a multi-energy complementary combined power generation system provided in Embodiment 2 of the present invention;

[0059] Figure 4 A structural block diagram of a power control device for a multi-energy complementary combined power generation system provided in Embodiment 3 of the present invention;

[0060] Figure 5 This is a structural block diagram of a computer device provided in Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0061] The embodiment of the present invention provides a power control method and device for a multi-energy complementary combined power generation system, which is used to solve the technical problem that the existing multi-energy complementary combined power generation system uses a high-capacity energy storage battery to protect the device, cuts off the power generation equipment after the voltage is greater than the set value, and uses the energy storage battery to power the load alone. The working status of the system is not judged from the perspective of the entire device, and the working status of each power generation equipment is not dynamically adjusted, which reduces the reliability of the operation of the multi-energy complementary combined power generation system.

[0062] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] See also Figure 1 , Figure 1 A flowchart of the steps of a power control method for a multi-energy complementary combined power generation system provided in Embodiment 1 of the present invention.

[0064] The present invention provides a power control method for a multi-energy complementary combined power generation system, comprising:

[0065] Step 101: collecting operating parameters of the multi-energy complementary joint power generation system according to a preset monitoring time, and performing multi-energy power generation power analysis on the operating parameters to obtain system power parameters and average renewable energy power difference;

[0066] In an embodiment of the present invention, status signals of each unit and load in a real-time multi-energy complementary combined power generation system are obtained, and the status signals are analyzed to obtain operating parameters of the multi-energy complementary combined power generation system, wherein the operating parameters include DC load power, AC load power, station power consumption, total power of wave power generator group, total power of wind power generator group, total power of photovoltaic power generation group, total power consumption of hydrogen production module group, total charging power of energy storage, renewable power generation power, total power generation power of hydrogen fuel cell group and total discharge power of energy storage. Multi-energy power generation power analysis is performed on the operating parameters to obtain system power parameters and average renewable energy power difference.

[0067] Step 102: Perform power deviation analysis on system power parameters and operating condition parameters to obtain corresponding power control parameters;

[0068] In the embodiment of the present invention, the renewable power generation power of the system power parameter, the total power consumption of the hydrogen fuel cell group and the hydrogen production module group and the total load power of the operating condition parameter are input into the preset regulating power function to obtain the regulating power. The difference between the total power generation power and the total power consumption of the operating condition parameter is calculated to obtain the real-time power deviation value, and the real-time power deviation and the regulating power are used as power control parameters.

[0069] Step 103: Dynamically control the power of the multi-energy complementary combined power generation system by using the power control parameter and the average renewable energy power difference.

[0070] In the embodiment of the present invention, the average power of the multi-energy complementary combined power generation system is controlled according to the average renewable energy power difference, and the real-time power difference of the multi-energy complementary combined power generation system is controlled according to the power control parameter, so as to realize the multi-energy complementary combined power generation system to absorb new energy power to the greatest extent.

[0071] In an embodiment of the present invention, the operating parameters of the multi-energy complementary combined power generation system are collected according to a preset monitoring time, and the power control parameters and average renewable energy power of the multi-energy complementary combined power generation system are determined according to the operating parameters. The power generation state of the multi-energy complementary combined power generation system is judged by the power control parameters and the average renewable energy power, so as to better adjust the utilization ratio of each energy source and improve the overall power generation efficiency. This solves the technical problem that the existing multi-energy complementary combined power generation system uses a high-capacity energy storage battery to protect the device, cuts off the power generation equipment when the voltage is greater than the set value, and uses the energy storage battery to power the load alone, without judging the working state of the system from the perspective of the entire device, and dynamically adjusting the working state of each power generation equipment, which reduces the reliability of the operation of the multi-energy complementary combined power generation system. This improves the reliability of the multi-energy complementary system.

[0072] See also Figure 2 , Figure 2 A flowchart of the steps of a power control method for a multi-energy complementary combined power generation system provided in Embodiment 2 of the present invention.

[0073] The present invention provides a power control method for a multi-energy complementary combined power generation system, comprising:

[0074] Step 201: collecting operating parameters of the multi-energy complementary combined power generation system according to a preset monitoring time, and performing multi-energy power generation power analysis on the operating parameters to obtain system power parameters and average renewable energy power difference;

[0075] It should be noted that, see Figure 3As shown, the multi-energy complementary joint power generation system includes a wind power generator group, a wave power generator group, a photovoltaic power generation component group, an energy storage battery group, a hydrogen production module group, a hydrogen storage module, a hydrogen fuel cell group, a DC bus, an inverter boost module, an AC bus, and a control module. The wind power generator group consists of a number of wind turbines, which can be of the same model or different models. To ensure the stability of the system, the power of each unit should be at the same order of magnitude, and the rated power of the largest unit should not exceed twice the rated power of the smallest unit. Each wind turbine has a start-up or shutdown control function. The electric energy generated by the wind power generator is directly rectified and then fed into the DC bus. The wave power generator group consists of a number of wave power generators, which can be of the same model or different models. To ensure the stability of the system, the power of each unit should be at the same order of magnitude, and the rated power of the largest unit should not exceed twice the rated power of the smallest unit. Each wave power generator has a start-up or shutdown control function. The electric energy generated by the wave energy generator set is directly rectified and then fed into the DC bus. The photovoltaic power generation component group is composed of a number of photovoltaic components, which should be of the same model and specification, and each photovoltaic power generation component has a start-up or shutdown control function. The energy storage battery group is composed of a number of energy storage batteries, which should be of the same model and specification. The hydrogen production module group is composed of a number of water electrolysis hydrogen production modules, which should be of the same model and specification, and each water electrolysis hydrogen production module has a start-up and shutdown control and power control functions. Considering the operating performance of the water electrolysis hydrogen production module, the minimum power consumption, optimal power consumption and maximum power consumption are set for the water electrolysis hydrogen production module. The total minimum power consumption and maximum power consumption of the hydrogen production module group are equal to the minimum power consumption and maximum power consumption of a single water electrolysis hydrogen production module multiplied by the number of water electrolysis hydrogen production modules. The hydrogen fuel cell group is composed of a number of hydrogen fuel cells, which should be of the same model and specification. Each hydrogen fuel cell has a start-up and shutdown control and power control functions. Considering the operating performance of hydrogen fuel cells, the optimal power generation and maximum power generation are set for hydrogen fuel cells. The maximum power generation of a hydrogen fuel cell group is the maximum power generation of a single hydrogen fuel cell multiplied by the number of hydrogen fuel cells that are turned on. The hydrogen storage module is used to provide hydrogen to the hydrogen fuel cell group. The hydrogen supply rate of the hydrogen storage module should be able to ensure that all hydrogen fuel cell groups work at the maximum power generation, and the maximum hydrogen storage capacity should be able to ensure that all hydrogen fuel cell groups work at the maximum power generation for more than 1 hour. The DC bus connects wind power generator groups, wave power generator groups, photovoltaic power generation component groups, energy storage battery groups, hydrogen production module groups, hydrogen fuel cell groups, control modules, and DC loads for collecting and outputting electrical energy. The inverter boost module is used to transmit DC bus power to the AC bus. The AC bus is used to supply power to AC loads.The control module monitors the operating status of each module in real time, and collects signals including the power of each wave power generator set, the power of each wind power generator set, the power of each photovoltaic power generation module, the charging power, discharging power and remaining power of each energy storage battery, the power consumption of each hydrogen production module, the hydrogen storage capacity of the hydrogen storage module, the power generation power of each hydrogen fuel cell, the DC bus voltage, the AC bus voltage, the DC load power, the AC load power, the station power consumption (the power consumption of the multi-energy complementary power generation system operation and maintenance), and other parameters, and controls the operation of the multi-energy complementary combined power generation system according to the control logic of steps 101-103.

[0076] Further, the operating parameters include DC load power, AC load power, station power, total power of wave power generator group, total power of wind power generator group, total power of photovoltaic power generation group, total power consumption of hydrogen production module group, total energy storage charging power, renewable power generation power, total power generation power of hydrogen fuel cell group and total energy storage discharge power. Step 201 includes the following sub-steps:

[0077] S11, adding the DC load power, the AC load power and the station power to obtain the corresponding total load power;

[0078] In the embodiment of the present invention, the sum of the DC load power, the AC load power and the station power is calculated to obtain the total load power.

[0079] S12, adding the total power of the wave energy generator group, the total power of the wind energy generator group and the total power of the photovoltaic power generation group to obtain the corresponding renewable power generation power;

[0080] In the embodiment of the present invention, the sum of the total power of the wave energy generator group, the total power of the wind energy generator group and the total power of the photovoltaic power generation group is calculated to obtain the renewable power generation power.

[0081] S13, adding the total load power, the total power consumption of the hydrogen production module group and the total charging power of the energy storage to obtain the corresponding total power consumption;

[0082] In the embodiment of the present invention, the total load power, the total power consumption of the hydrogen production module group and the total energy storage charging power are calculated to obtain the total power consumption.

[0083] S14, adding the renewable power generation power, the total power generation power of the hydrogen fuel cell group and the total energy storage discharge power to obtain the corresponding total power generation power;

[0084] S15, using total load power, renewable power generation power, total power consumption and total power generation as system power parameters;

[0085] In the embodiment of the present invention, the sum of the renewable power generation power, the total power generation power of the hydrogen fuel cell group and the total energy storage discharge power is calculated to obtain the total power generation power. The total load power, the renewable power generation power, the total power consumption power and the total power generation power are used as system power parameters.

[0086] S16. Perform difference processing on the renewable power generation power and the total load power to obtain an average renewable energy power difference.

[0087] In the embodiment of the present invention, the difference between the renewable power generation power and the total load power is calculated to obtain the average renewable energy power difference.

[0088] It should be noted that when performing difference processing on the renewable power generation power and the total load power, the renewable power generation power and the total load power are average values ​​within the past 10 minutes.

[0089] Step 202: Perform power deviation analysis on system power parameters and operating condition parameters to obtain corresponding power control parameters;

[0090] Further, step 202 includes the following sub-steps:

[0091] S21, adding the renewable power generation power and the total power generation power of the hydrogen fuel cell group to obtain a first sum value;

[0092] S22, adding the total load power and the total power consumption of the hydrogen production module group to obtain a second sum value;

[0093] S23, performing difference processing on the first sum and the second sum to obtain an adjusted power;

[0094] In an embodiment of the present invention, the renewable power generation power, the total power generation power of the hydrogen fuel cell group, the total load power and the total power consumption of the hydrogen production module group are input into a preset regulating power function to obtain the regulated power.

[0095] It should be noted that the adjustment power function is specifically:

[0096] Regulated power = renewable power generation + total power generation of hydrogen fuel cell group - total load power - total power consumption of hydrogen production module group.

[0097] S24, performing difference processing on the total power generation and the total power consumption to obtain a real-time power deviation value, and using the real-time power deviation and the adjustment power as power control parameters.

[0098] In the embodiment of the present invention, the difference between the total generated power and the total consumed power is calculated to obtain a real-time power deviation value, and the real-time power deviation and the adjusted power are used as power control parameters.

[0099] Step 203: Perform average power control on the multi-energy complementary combined power generation system based on the average renewable energy power difference;

[0100] Further, step 203 includes the following sub-steps:

[0101] S31, when the average renewable energy power difference is less than the preset average power adjustment threshold, obtaining the number of hydrogen fuel cells started in the multi-energy complementary combined power generation system according to the preset first adjustment time;

[0102] The average power regulation threshold refers to the average renewable energy power difference when the multi-energy complementary joint power generation system absorbs the maximum amount of new energy electricity, and its value is 0.

[0103] In an embodiment of the present invention, when the average renewable energy power difference is less than 0, the number of hydrogen fuel cells in the multi-energy complementary combined power generation system that are in the on-state is obtained every one minute.

[0104] It should be noted that when the average renewable energy power difference is equal to the average power regulation threshold, the multi-energy complementary combined power generation system is kept in the current operating state and continues to operate.

[0105] S32, performing absolute value processing on the average renewable energy power difference to obtain a first absolute value;

[0106] S33, performing ratio processing on the first absolute value and a preset first optimal power generation to obtain a first theoretical startup number;

[0107] The first optimal power generation refers to the optimal power generation of the hydrogen fuel cell.

[0108] The first theoretical startup number refers to the theoretical startup number of hydrogen fuel cells.

[0109] In an embodiment of the present invention, the average renewable energy power difference and the pre-acquired optimal power generation power of the hydrogen fuel cell are input into a preset first theoretical startup number function to obtain a first theoretical startup number.

[0110] It should be noted that the first theoretical startup number function is specifically:

[0111] The theoretical number of hydrogen fuel cells in operation = [absolute value of average renewable power difference / optimal power generation of hydrogen fuel cells] ([ ] indicates rounding).

[0112] S34, when the number of hydrogen fuel cells started is not equal to the first theoretical number of hydrogen fuel cells started, controlling the hydrogen fuel cell group of the multi-energy complementary combined power generation system to perform power generation adjustment operations until the total power generation power of the hydrogen fuel cell group of the multi-energy complementary combined power generation system is equal to the first absolute value;

[0113] In an embodiment of the present invention, when the number of hydrogen fuel cells turned on is not equal to the first theoretical number of turns on, the hydrogen fuel cells of the multi-energy complementary joint power generation system are not turned on or off temporarily, and the power generation power of the hydrogen fuel cells is adjusted so that the total power generation power of the hydrogen fuel cell group is equal to the first absolute value. If it cannot be adjusted to be equal, the power of the turned-on hydrogen fuel cell is adjusted to the maximum or minimum power to make it as close to the first absolute value as possible. And jump to execute S31-S34. If the first theoretical number of turns on for 5 consecutive iterations is different from the number of hydrogen fuel cells turned on, the number of hydrogen fuel cells turned on is adjusted, and the number of hydrogen fuel cells turned on is increased or decreased according to the latest calculated value of the theoretical number of hydrogen fuel cells turned on, and the power of each hydrogen fuel cell is adjusted to the first optimal power generation power so that the total power generation power of the hydrogen fuel cell group is equal to the first absolute value.

[0114] It should be noted that when the number of hydrogen fuel cells started is equal to the first theoretical number of started, the multi-energy complementary combined power generation system is kept in the current operating state and continues to operate.

[0115] S35. When the average renewable energy power difference is greater than the average power adjustment threshold, the number of hydrogen production modules of the multi-energy complementary combined power generation system is obtained according to the first adjustment time;

[0116] In an embodiment of the present invention, when the average renewable energy power difference is greater than 0, the hydrogen fuel cell group is shut down, and the number of hydrogen production modules of the multi-energy complementary combined power generation system to the first optimal power generation power is obtained every 1 minute.

[0117] S36, performing ratio processing on the average renewable energy power difference and the preset second optimal power generation power to obtain a second theoretical startup number;

[0118] The second optimal power generation power refers to the optimal power consumption of the hydrogen production module.

[0119] The second theoretical startup function refers to the theoretical startup quantity of the hydrogen production module.

[0120] In an embodiment of the present invention, the average renewable energy power difference and the optimal power consumption of the hydrogen production module are input into a preset second theoretical startup function to obtain a second theoretical startup number.

[0121] It should be noted that the second theoretical startup function is specifically:

[0122] Theoretical number of hydrogen production modules to be started = [average renewable power difference / optimal power consumption of hydrogen production modules] ([ ] indicates rounding calculation).

[0123] S37. When the number of hydrogen production modules is not equal to the second theoretical startup number, the hydrogen production module group is controlled to perform charging power adjustment operation until the total power consumption of the hydrogen production module group of the multi-energy complementary joint power generation system is equal to the average renewable energy power difference.

[0124] In an embodiment of the present invention, when the number of hydrogen production modules is not equal to the second theoretical startup number, the hydrogen production module is temporarily not turned on or off, and the total power consumption of the hydrogen production module group is equal to the average renewable power difference by adjusting the power generation power of the hydrogen production module. If it cannot be adjusted to be equal, the power of the hydrogen production modules turned on is adjusted to the maximum or minimum power to make the total power consumption of the hydrogen production module group as close to the average renewable power difference as possible. And jump to execute S35-S37. If the number of hydrogen production modules in five consecutive iterations is different from the second theoretical startup number, the number of hydrogen production modules turned on is adjusted, and the number of hydrogen production modules turned on is increased or decreased according to the latest calculated value of the theoretical startup number of hydrogen production modules, and the power of each hydrogen production module is adjusted to the second optimal power generation power to make the total power consumption of the hydrogen production module group equal to the average renewable power difference.

[0125] It should be noted that when the number of hydrogen production modules is equal to the second theoretical startup number, the multi-energy complementary combined power generation system is kept in the current operating state and continues to operate.

[0126] It is worth mentioning that when the hydrogen storage system's hydrogen storage capacity is sufficient for the hydrogen fuel cell group to operate in the current state for less than 10 minutes, the hydrogen fuel cell group will no longer accept power increase instructions. The current total power generation of the hydrogen fuel cell group will be used as the reference power. If the calculation requires a power reduction and the reduction is greater than 5% of the reference power value, the power will be reduced according to the calculation requirements. Otherwise, the total power generation of the hydrogen fuel cell group will be adjusted according to the target of reducing the reference power by 5% per minute until the entire hydrogen fuel cell group is shut down.

[0127] Step 204: Perform real-time power difference control on the multi-energy complementary combined power generation system based on the power control parameters.

[0128] Further, step 204 includes the following sub-steps:

[0129] S41, when the real-time power deviation of the power control parameter is not equal to the preset real-time power adjustment threshold, the energy storage battery group of the multi-energy complementary combined power generation system is divided according to the preset division condition to obtain a charging group and a discharging group;

[0130] The real-time power regulation threshold refers to the real-time power deviation when the multi-energy complementary joint power generation system absorbs the maximum amount of new energy electricity, and its value is 0.

[0131] In an embodiment of the present invention, when the real-time power deviation of the power control parameter is not equal to 0, the energy storage battery group of the multi-energy complementary joint power generation system is divided according to a preset division condition to obtain a charging group and a discharging group. The division condition is specifically: energy storage batteries with a remaining power of less than 30% are divided into a charging group, energy storage batteries with a remaining power of more than 90% are divided into a discharging group, and energy storage batteries with a remaining power between 30% and 90% are divided equally into a charging group and a discharging group.

[0132] S42. When the adjustment power of the power control parameter is greater than the real-time power adjustment threshold, the charging group is controlled to perform the charging operation and the discharging group is controlled to perform the charging regulation operation until the total energy storage discharge power of the multi-energy complementary combined power generation system is equal to the real-time power adjustment threshold, and the real-time power deviation of the multi-energy complementary combined power generation system within the preset second adjustment time is obtained as the target power deviation data;

[0133] In the embodiment of the present invention, when the adjustment power of the power control parameter is greater than 0, the charging group is controlled to perform the charging operation. When the charging power is insufficient, the energy storage batteries with a remaining power between 30% and 90% originally classified in the discharge group are adjusted to the charging group. The adjustment sequence is from low to high according to the remaining power until the total energy storage charging power of the multi-energy complementary combined power generation system is equal to the real-time power adjustment threshold. The real-time power deviation of the multi-energy complementary combined power generation system at each moment within 1 minute is obtained as the target power deviation data.

[0134] S43, when the adjustment power is less than the real-time power adjustment threshold, the discharge group is controlled to perform a discharge operation and the charging group is controlled to perform a discharge control operation until the total energy storage charging power of the multi-energy complementary combined power generation system is equal to the real-time power adjustment threshold;

[0135] In an embodiment of the present invention, when the adjustment power is less than 0, the discharge group is controlled to perform the discharge operation; when the discharge power is insufficient, the energy storage batteries originally classified in the charging group with a remaining power between 30% and 90% are adjusted to the discharge group, and the adjustment sequence is carried out from high to low according to the remaining power until the total energy storage discharge power of the multi-energy complementary joint power generation system is equal to the real-time power adjustment threshold.

[0136] It is worth mentioning that the regulating power of the multi-energy complementary joint power generation system is obtained in real time. When the regulating power fluctuates in real time, the charging and discharging power of each energy storage battery is adjusted so that the total charging power / discharging power of the energy storage is always equal to the absolute value of the regulating power.

[0137] S44, performing absolute value processing on the adjusted power to obtain a second absolute value, and obtaining the maximum discharge power of the energy storage battery group at the current moment;

[0138] In the embodiment of the present invention, the absolute value of the regulated power is calculated to obtain the second absolute value, and the maximum discharge power of the energy storage battery group at the current moment is obtained.

[0139] S45. When the maximum discharge power of the energy storage group is less than the second absolute value, performing difference processing between the second absolute value and the maximum discharge power of the energy storage group to obtain a first difference;

[0140] In the embodiment of the present invention, when the maximum discharge power of the energy storage group is lower than the second absolute value, the difference between the second absolute value and the maximum discharge power of the energy storage group is calculated to obtain the first difference.

[0141] S46, controlling the hydrogen fuel cell group of the multi-energy complementary combined power generation system to perform a power compensation operation until the adjusted power generation of the hydrogen fuel cell group is greater than the first difference, and obtaining the real-time power deviation of the multi-energy complementary combined power generation system within a preset second adjustment time as the target power deviation data;

[0142] In an embodiment of the present invention, the operating state of the hydrogen fuel cell group is temporarily adjusted, the power generation power of the hydrogen fuel cell is increased or the hydrogen fuel cell is started up to increase the total power generation power of the hydrogen fuel cell group until the increased power generation power of the hydrogen fuel cell group is greater than the first difference, and the real-time power deviation of the multi-energy complementary combined power generation system at each moment within 1 minute is obtained as the target power deviation data.

[0143] It should be noted that the increased power generation should be slightly greater than the recorded first difference. When the increased power generation is greater than the first difference, the process proceeds to step S41.

[0144] S48. Perform power control on the multi-energy complementary combined power generation system according to the target power deviation.

[0145] Further, S48 includes the following sub-steps:

[0146] S481. When any real-time power deviation in the target power deviation data is equal to the real-time power adjustment threshold, the multi-energy complementary combined power generation system is kept in the current operating state and continues to operate;

[0147] S482: when each real-time power deviation in the target power deviation data is greater than the real-time power adjustment threshold, the average power generation power of each power generation device in the multi-energy complementary combined power generation system is obtained according to the preset third adjustment time;

[0148] In an embodiment of the present invention, when any real-time power deviation within the target power deviation is equal to the real-time power adjustment threshold, the multi-energy complementary combined power generation system is kept in the current operating state and continues to operate; when each real-time power deviation within the target power deviation data is greater than 0, the average power generation power of each power generation equipment in the multi-energy complementary combined power generation system in the past 10 minutes is obtained.

[0149] S483, performing ratio processing on each average power generation and a preset rated power to obtain a first ratio corresponding to each power generation device;

[0150] In the embodiment of the present invention, the ratio between each average power generation and the preset rated power is calculated to obtain the first ratio corresponding to each power generation device.

[0151] S484, selecting the power generation equipment corresponding to the minimum value from each of the first ratios as the target power generation equipment, performing a removal process on the target power generation equipment, and jumping to execute the step of obtaining the real-time power deviation of the multi-energy complementary combined power generation system as the target power deviation according to the preset second adjustment time, until the target power deviation is equal to the real-time power adjustment threshold;

[0152] In the embodiment of the present invention, the first ratios are sorted from small to large to obtain a first sequence, and the generator devices are removed in sequence according to the order of the generator devices in the first sequence until the target power deviation is equal to the real-time power regulation threshold.

[0153] S485. When each real-time power deviation in the target power deviation data is less than the real-time power adjustment threshold, the importance value of each load in the multi-energy complementary combined power generation system is obtained;

[0154] In the embodiment of the present invention, when each real-time power deviation in the target power deviation data is less than 0, the importance value of each load in the multi-energy complementary joint power generation system is obtained.

[0155] S486. Select the load corresponding to the minimum value from each importance value as the target load, cut off the target load, and jump to execute the step of obtaining the real-time power deviation of the multi-energy complementary combined power generation system as the target power deviation according to the preset second adjustment time until the target power deviation is equal to the real-time power adjustment threshold.

[0156] In the embodiment of the present invention, the importance values ​​are sorted from small to large to obtain a second sequence, and the loads are removed in sequence according to the order of the loads in the second sequence until the target power deviation is equal to the real-time power adjustment threshold.

[0157] In an embodiment of the present invention, the operating parameters of the multi-energy complementary combined power generation system are collected according to a preset monitoring time, and the power control parameters and average renewable energy power of the multi-energy complementary combined power generation system are determined according to the operating parameters. The power generation state of the multi-energy complementary combined power generation system is judged by the power control parameters and the average renewable energy power, so as to better adjust the utilization ratio of each energy source and improve the overall power generation efficiency. This solves the technical problem that the existing multi-energy complementary combined power generation system uses a high-capacity energy storage battery to protect the device, cuts off the power generation equipment when the voltage is greater than the set value, and uses the energy storage battery to power the load alone, without judging the working state of the system from the perspective of the entire device, and dynamically adjusting the working state of each power generation equipment, which reduces the reliability of the operation of the multi-energy complementary combined power generation system. This improves the reliability of the multi-energy complementary system.

[0158] See also Figure 4 , Figure 4 This is a structural block diagram of a power control device for a multi-energy complementary combined power generation system provided in Embodiment 3 of the present invention.

[0159] The present invention provides a power control device for a multi-energy complementary combined power generation system, comprising:

[0160] The acquisition module 301 is used to collect the operating parameters of the multi-energy complementary combined power generation system according to the preset monitoring time, and perform multi-energy power generation power analysis on the operating parameters to obtain the system power parameters and the average renewable energy power difference;

[0161] The analysis module 302 is used to perform power deviation analysis on the system power parameters and operating condition parameters to obtain corresponding power control parameters;

[0162] The control module 303 is used to perform dynamic power control on the multi-energy complementary combined power generation system by using power control parameters and the average renewable energy power difference.

[0163] Furthermore, the acquisition module 301 includes:

[0164] The first power analysis submodule is used to add the DC load power, the AC load power and the station power to obtain the corresponding total load power;

[0165] The second power analysis submodule is used to add the total power of the wave power generator group, the total power of the wind power generator group and the total power of the photovoltaic power generation group to obtain the corresponding renewable power generation power;

[0166] The third power analysis submodule is used to add the total load power, the total power consumption of the hydrogen production module group and the total charging power of the energy storage to obtain the corresponding total power consumption;

[0167] The fourth power analysis submodule is used to add the renewable power generation power, the total power generation power of the hydrogen fuel cell group and the total energy storage discharge power to obtain the corresponding total power generation power;

[0168] a sixth power analysis submodule, for using total load power, renewable power generation power, total power consumption power and total power generation power as system power parameters;

[0169] The seventh power analysis submodule is used to perform difference processing on the renewable power generation power and the total load power to obtain an average renewable energy power difference.

[0170] Furthermore, the analysis module 302 includes:

[0171] A first power deviation submodule is used to add the renewable power generation power and the total power generation power of the hydrogen fuel cell group to obtain a first sum value;

[0172] The second power deviation submodule is used to add the total load power and the total power consumption of the hydrogen production module group to obtain a second sum value;

[0173] A third power deviation submodule is used for performing difference processing on the first sum and the second sum to obtain an adjusted power;

[0174] The fourth power deviation submodule is used to perform difference processing on the total power generation and the total power consumption to obtain a real-time power deviation value, and use the real-time power deviation and the adjustment power as power control parameters.

[0175] Furthermore, the control module 303 includes:

[0176] An average power control submodule is used to perform average power control on a multi-energy complementary combined power generation system based on an average renewable energy power difference;

[0177] The real-time power difference control submodule is used to perform real-time power difference control on the multi-energy complementary combined power generation system based on power control parameters.

[0178] Furthermore, the average power control submodule includes:

[0179] A first average power control unit, configured to obtain the number of hydrogen fuel cells started in the multi-energy complementary combined power generation system according to a preset first adjustment time when the average renewable energy power difference is less than a preset average power adjustment threshold;

[0180] Performing absolute value processing on the average renewable energy power difference to obtain a first absolute value;

[0181] The first absolute value is ratioed with a preset first optimal power generation to obtain a first theoretical startup number;

[0182] When the number of hydrogen fuel cells started is not equal to the first theoretical number of hydrogen fuel cells started, the hydrogen fuel cell group of the multi-energy complementary combined power generation system is controlled to perform power generation adjustment operations until the total power generation of the hydrogen fuel cell group of the multi-energy complementary combined power generation system is equal to the first absolute value;

[0183] A second average power control unit is used to obtain the number of hydrogen production modules of the multi-energy complementary combined power generation system according to the first adjustment time when the average renewable energy power difference is greater than the average power adjustment threshold;

[0184] The average renewable energy power difference is processed by ratio with the preset second optimal power generation power to obtain a second theoretical startup number;

[0185] When the number of hydrogen production modules is not equal to the second theoretical startup number, the hydrogen production module group is controlled to perform charging power adjustment operations until the total power consumption of the hydrogen production module group of the multi-energy complementary joint power generation system is equal to the average renewable energy power difference.

[0186] Furthermore, the real-time power difference control submodule includes:

[0187] A first power difference control unit, used for dividing the energy storage battery group of the multi-energy complementary combined power generation system into a charging group and a discharging group according to a preset division condition when the real-time power deviation of the power control parameter is not equal to the preset real-time power adjustment threshold;

[0188] When the adjustment power of the power control parameter is greater than the real-time power adjustment threshold, the charging group is controlled to perform the charging operation and the discharging group is controlled to perform the charging regulation operation until the total energy storage discharge power of the multi-energy complementary combined power generation system is equal to the real-time power adjustment threshold, and the real-time power deviation of the multi-energy complementary combined power generation system within the preset second adjustment time is obtained as the target power deviation data;

[0189] The second power difference control unit is used to control the discharge group to perform a discharge operation and the charging group to perform a discharge regulation operation when the regulated power is less than the real-time power regulation threshold, until the total energy storage charging power of the multi-energy complementary combined power generation system is equal to the real-time power regulation threshold;

[0190] The regulated power is processed by absolute value to obtain a second absolute value, and the maximum discharge power of the energy storage battery group at the current moment is obtained;

[0191] When the maximum discharge power of the energy storage group is less than the second absolute value, the second absolute value and the maximum discharge power of the energy storage group are subjected to difference processing to obtain a first difference;

[0192] Controlling the hydrogen fuel cell group of the multi-energy complementary combined power generation system to perform a power compensation operation until the increased power generation of the hydrogen fuel cell group is greater than the first difference, and obtaining the real-time power deviation of the multi-energy complementary combined power generation system within a preset second adjustment time as the target power deviation data;

[0193] The cutting unit is used to perform power regulation and control on the multi-energy complementary combined power generation system according to the target power deviation data.

[0194] Furthermore, the removal unit comprises:

[0195] The power generation equipment cut-off subunit is used to keep the multi-energy complementary combined power generation system in the current operating state and continue to operate when any real-time power deviation in the target power deviation data is equal to the real-time power adjustment threshold;

[0196] When each real-time power deviation in the target power deviation data is greater than the real-time power adjustment threshold, the average power generation power of each power generation equipment in the multi-energy complementary joint power generation system is obtained according to the preset third adjustment time;

[0197] Performing ratio processing on each average power generation and a preset rated power respectively to obtain a first ratio corresponding to each power generation device;

[0198] Selecting the power generation equipment corresponding to the minimum value from each of the first ratios as the target power generation equipment, performing a removal process on the target power generation equipment, and jumping to execute the step of obtaining the real-time power deviation of the multi-energy complementary combined power generation system as the target power deviation according to the preset second adjustment time until the target power deviation is equal to the real-time power adjustment threshold;

[0199] The load shedding subunit is used to obtain the importance value of each load in the multi-energy complementary combined power generation system when each real-time power deviation in the target power deviation data is less than the real-time power regulation threshold;

[0200] The load corresponding to the minimum value is selected from each importance value as the target load, and the target load is cut off, and the execution jumps to the step of obtaining the real-time power deviation of the multi-energy complementary combined power generation system as the target power deviation according to the preset second adjustment time until the target power deviation is equal to the real-time power adjustment threshold.

[0201] See also Figure 5 , Figure 5 This is a structural block diagram of a computer device provided in Embodiment 4 of the present invention.

[0202] An electronic device according to an embodiment of the present invention comprises: a memory 401 and a processor 402, wherein the memory 402 stores a computer program; when the computer program is executed by the processor 402, the processor 402 executes a power control method for a multi-energy complementary combined power generation system as in any of the above embodiments.

[0203] The memory 401 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read-only memory), an EPROM, a hard disk or a ROM. The memory 401 has a storage space 403 for a program code 413 for executing any method step in the above method. For example, the storage space 403 for the program code may include individual program codes 413 for implementing the various steps in the above method, respectively. These program codes may be read from or written to one or more computer program products. These computer program products include program code carriers such as a hard disk, a compact disk (CD), a memory card or a floppy disk. The program code may be compressed, for example, in an appropriate form. When these codes are run by a computing and processing device, the computing and processing device is caused to execute the various steps in the above-described method.

[0204] Embodiment 5 of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the power control method of the multi-energy complementary combined power generation system as in any of the above embodiments is implemented.

[0205] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0206] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0207] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0208] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0209] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0210] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power control method for a multi-energy complementary combined power generation system, characterized in that: include: Collecting the operating parameters of the multi-energy complementary combined power generation system according to the preset monitoring time, and performing multi-energy power generation power analysis on the operating parameters to obtain the system power parameters and the average renewable energy power difference; Performing power deviation analysis on the system power parameter and the operating condition parameter to obtain corresponding power control parameters; The power control parameter and the average renewable energy power difference are used to perform dynamic power control on the multi-energy complementary combined power generation system.

2. The power control method of the multi-energy complementary joint power generation system according to claim 1 is characterized in that: The operating parameters include DC load power, AC load power, station power, total power of wave power generator group, total power of wind power generator group, total power of photovoltaic power generation group, total power consumption of hydrogen production module group, total energy storage charging power, renewable power generation power, total power generation power of hydrogen fuel cell group and total energy storage discharge power. The step of performing multi-energy power generation analysis on the operating parameters to obtain system power parameters and average renewable energy power difference includes: Adding the DC load power, the AC load power and the station power to obtain a corresponding total load power; The total power of the wave energy generator group, the total power of the wind energy generator group and the total power of the photovoltaic power generation group are added together to obtain the corresponding renewable power generation power; The total load power, the total power consumption of the hydrogen production module group and the total energy storage charging power are added together to obtain a corresponding total power consumption; The renewable power generation power, the total power generation power of the hydrogen fuel cell group and the total energy storage discharge power are added together to obtain the corresponding total power generation power; Using the total load power, the renewable power generation power, the total power consumption and the total power generation power as system power parameters; The renewable power generation power and the total load power are subjected to difference processing to obtain an average renewable energy power difference.

3. The power control method of the multi-energy complementary joint power generation system according to claim 2 is characterized in that: The step of performing power deviation analysis on the system power parameter and the operating condition parameter to obtain corresponding power control parameters includes: Adding the renewable power generation to the total power generation of the hydrogen fuel cell group to obtain a first sum value; The total load power and the total power consumption of the hydrogen production module group are added together to obtain a second sum value; Performing difference processing on the first sum value and the second sum value to obtain an adjusted power; The total generated power and the total consumed power are subjected to difference processing to obtain a real-time power deviation value, and the real-time power deviation and the adjusted power are used as power control parameters.

4. The power control method of a multi-energy complementary combined power generation system according to any one of claims 1 to 3, characterized in that: The step of dynamically controlling the power of the multi-energy complementary combined power generation system by using the power control parameter and the average renewable energy power difference comprises: Performing average power control on the multi-energy complementary combined power generation system based on the average renewable energy power difference; Based on the power control parameters, real-time power difference control is performed on the multi-energy complementary combined power generation system.

5. The power control method of the multi-energy complementary joint power generation system according to claim 4 is characterized in that: The step of performing average power control on the multi-energy complementary combined power generation system based on the average renewable energy power difference comprises: When the average renewable energy power difference is less than a preset average power adjustment threshold, the number of hydrogen fuel cells started in the multi-energy complementary combined power generation system is obtained according to a preset first adjustment time; Performing absolute value processing on the average renewable energy power difference to obtain a first absolute value; Performing ratio processing on the first absolute value and a preset first optimal power generation to obtain a first theoretical startup number; When the number of hydrogen fuel cells started is not equal to the first theoretical number of hydrogen fuel cells started, the hydrogen fuel cell group of the multi-energy complementary combined power generation system is controlled to perform power generation adjustment operations until the total power generation power of the hydrogen fuel cell group of the multi-energy complementary combined power generation system is equal to the first absolute value; When the average renewable energy power difference is greater than the average power adjustment threshold, the number of hydrogen production modules of the multi-energy complementary combined power generation system is obtained according to the first adjustment time; The average renewable energy power difference is processed by ratio with a preset second optimal power generation power to obtain a second theoretical startup number; When the number of the hydrogen production modules is not equal to the second theoretical startup number, the hydrogen production module group is controlled to perform charging power adjustment operations until the total power consumption of the hydrogen production module group of the multi-energy complementary joint power generation system is equal to the average renewable energy power difference.

6. The power control method of the multi-energy complementary joint power generation system according to claim 4 is characterized in that: The step of performing real-time power difference control on the multi-energy complementary combined power generation system based on the power control parameter comprises: When the real-time power deviation of the power control parameter is not equal to the preset real-time power adjustment threshold, the energy storage battery group of the multi-energy complementary combined power generation system is divided according to the preset division condition to obtain a charging group and a discharging group; When the adjustment power of the power control parameter is greater than the real-time power adjustment threshold, the charging group is controlled to perform a charging operation and the discharging group is controlled to perform a charging regulation operation until the total energy storage discharge power of the multi-energy complementary combined power generation system is equal to the real-time power adjustment threshold, and the real-time power deviation of the multi-energy complementary combined power generation system within a preset second adjustment time is obtained as the target power deviation data; When the regulated power is less than the real-time power regulation threshold, the discharging group is controlled to perform a discharging operation and the charging group is controlled to perform a discharging regulation operation until the total energy storage charging power of the multi-energy complementary combined power generation system is equal to the real-time power regulation threshold; Performing absolute value processing on the regulated power to obtain a second absolute value, and obtaining the maximum discharge power of the energy storage battery group at the current moment; When the maximum discharge power of the energy storage group is less than the second absolute value, performing difference processing between the second absolute value and the maximum discharge power of the energy storage group to obtain a first difference; Controlling the hydrogen fuel cell group of the multi-energy complementary combined power generation system to perform a power compensation operation until the increased power generation of the hydrogen fuel cell group is greater than the first difference, and obtaining the real-time power deviation of the multi-energy complementary combined power generation system within a preset second adjustment time as target power deviation data; Power regulation and control is performed on the multi-energy complementary combined power generation system according to the target power deviation data.

7. The power control method of the multi-energy complementary joint power generation system according to claim 6 is characterized in that: The step of performing power control processing on the multi-energy complementary combined power generation system according to the target power deviation data comprises: When any real-time power deviation in the target power deviation data is equal to the real-time power adjustment threshold, the multi-energy complementary combined power generation system is kept in the current operating state and continues to operate; When each real-time power deviation in the target power deviation data is greater than the real-time power adjustment threshold, the average power generation power of each power generation equipment in the multi-energy complementary joint power generation system is obtained according to the preset third adjustment time; Performing ratio processing on each average power generation and a preset rated power respectively to obtain a first ratio corresponding to each power generation device; A power generation device corresponding to a minimum value is selected from each of the first ratios as a target power generation device, and the target power generation device is cut off, and the step of obtaining the real-time power deviation of the multi-energy complementary combined power generation system as a target power deviation according to the preset second adjustment time is jumped to execute until the target power deviation is equal to the real-time power adjustment threshold; When each real-time power deviation in the target power deviation data is less than the real-time power adjustment threshold, the importance value of each load in the multi-energy complementary joint power generation system is obtained; A load corresponding to the minimum value is selected from each of the importance values ​​as the target load, and the target load is cut off, and the step of obtaining the real-time power deviation of the multi-energy complementary combined power generation system as the target power deviation according to the preset second adjustment time is jumped to execute until the target power deviation is equal to the real-time power adjustment threshold.

8. A power control device for a multi-energy complementary combined power generation system, characterized in that: include: A collection module is used to collect the operating parameters of the multi-energy complementary combined power generation system according to a preset monitoring time, and perform multi-energy power generation power analysis on the operating parameters to obtain the system power parameters and the average renewable energy power difference; An analysis module, used for performing power deviation analysis on the system power parameter and the operating condition parameter to obtain corresponding power control parameters; A control module is used to dynamically control the power of the multi-energy complementary combined power generation system by using the power control parameter and the average renewable energy power difference.

9. An electronic device, characterized in that: It comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the power control method of the multi-energy complementary combined power generation system as described in any one of claims 1-6.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed, the power control method of the multi-energy complementary combined power generation system as described in any one of claims 1 to 6 is implemented.

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