A power supply method and device for coordinated control of wind power generation and thermal power generation

Abstract

The present invention discloses a power supply method, device, equipment and computer-readable storage medium for coordinated control of wind power generation and thermal power generation, which obtains the total wind curtailment of the wind turbine, the operating parameters of the wind turbine and the operating parameters of the thermal power unit; determines the virtual energy storage energy information of the wind turbine according to the total wind curtailment and the operating parameters of the wind turbine; determines the transferable amount of plant electricity according to the operating parameters of the thermal power unit; and controls the wind turbine to supply energy to the thermal power unit according to the virtual energy storage information of the wind turbine and the transferable amount of plant electricity. The present invention utilizes the technical concept of virtual energy storage to calculate the virtual energy storage corresponding to the total wind curtailment of the wind turbine that can be utilized, and uses this energy to power the thermal power plant's own electrical equipment, that is, to transfer the load of the thermal power plant's plant power system from the thermal power plant generator to the wind turbine generator. While ensuring that the total on-grid load of the thermal power plant remains unchanged, the power generation efficiency of a unit amount of fossil fuel is improved.

Description

Technical Field

[0001] The present invention relates to the field of power dispatching, and in particular to a power supply method, device, equipment and computer-readable storage medium for coordinated control of wind power generation and thermal power generation. Background Art

[0002] As a controllable and reliable power generation method, thermal power generation has long been the mainstream choice for electricity supply worldwide. However, in traditional thermal power plants, the power generation equipment itself, such as coal mills, forced draft fans, induced draft fans, and electric feedwater pumps, consumes significant amounts of electricity. Typically, these power generation equipment must be self-sufficient, requiring the power plant to use a portion of its generated electricity for its own consumption. However, with the demand for clean energy, improving the efficiency of electricity output per unit of fossil fuel is gaining increasing attention.

[0003] Currently, with the gradual growth of renewable energy generation capacity, the proportion of wind power in my country's power grid is continuing to rise rapidly. According to data released by the State Grid Corporation of China, as of the end of 2020, installed wind power capacity in the State Grid's operating area had increased by 37% year-on-year, the highest year-on-year growth among various clean energy generation methods. However, due to practical absorption issues in wind power generation, some wind farms have implemented power rationing measures, which reduces the efficiency of wind resource utilization and causes some wind farms to operate in a state of curtailment.

[0004] Therefore, how to find a method to improve the efficiency of electricity output per unit amount of fossil fuel while improving the utilization rate of wind energy is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide a power supply method, device, equipment and computer-readable storage medium for coordinated control of wind power generation and thermal power generation, so as to solve the problems of waste of wind energy and low power output per unit amount of fossil fuel caused by self-supply of thermal power plants in the prior art.

[0006] To solve the above technical problems, the present invention provides a power supply method for coordinated control of wind power generation and thermal power generation, comprising:

[0007] Obtain the total abandoned wind volume of wind turbines, wind turbine operating parameters and thermal power unit operating parameters;

[0008] Determining wind turbine virtual energy storage energy information according to the total abandoned wind volume and the wind turbine operating parameters;

[0009] Determining the transferable amount of auxiliary power according to the operating parameters of the thermal power unit;

[0010] According to the virtual energy storage information of the wind turbine and the transferable amount of the plant power, the wind turbine group is controlled to supply energy to the thermal power group.

[0011] Optionally, in the power supply method for coordinated control of wind power generation and thermal power generation, obtaining the total wind curtailment of the wind turbine generator set, wind turbine generator set operating parameters, and thermal power generator set operating parameters includes:

[0012] Get the total abandoned wind volume of wind turbines;

[0013] Determining whether the total abandoned air volume exceeds a start threshold;

[0014] When the total abandoned wind volume exceeds the startup threshold, the wind turbine operating parameters and the thermal power unit operating parameters are obtained.

[0015] Optionally, in the power supply method for coordinated control of wind power generation and thermal power generation, obtaining the total wind curtailment of the wind turbine generator set, wind turbine generator set operating parameters, and thermal power generator set operating parameters includes:

[0016] Obtain the total abandoned wind volume of wind turbines, wind turbine operating parameters, minimum unit load of thermal power units, and thermal power unit operating parameters;

[0017] Accordingly, determining the transferable amount of auxiliary power according to the operating parameters of the thermal power unit includes:

[0018] The transferable amount of plant electricity is determined based on the operating parameters of the thermal power unit and the minimum load of the unit.

[0019] Optionally, in the power supply method for coordinated control of wind power generation and thermal power generation, controlling the wind turbine to supply energy to the thermal power generation group based on the wind turbine virtual energy storage information and the transferable amount of auxiliary power includes:

[0020] According to the virtual energy storage information of the wind turbine, the transferable amount of the plant power and the preset primary frequency regulation capability parameters of the power grid, the wind turbine group is controlled to supply energy to the thermal power group.

[0021] A power supply device for coordinated control of wind power generation and thermal power generation, comprising:

[0022] An acquisition module is used to obtain the total abandoned wind volume of the wind turbine, the operating parameters of the wind turbine and the operating parameters of the thermal power unit;

[0023] A virtual energy module, configured to determine virtual energy storage information of the wind turbine according to the total abandoned wind volume and the operating parameters of the wind turbine set;

[0024] Auxiliary power module, used to determine the transferable amount of auxiliary power according to the operating parameters of the thermal power unit;

[0025] The control module is used to control the wind turbine to supply energy to the thermal power generation group according to the virtual energy storage information of the wind turbine and the transferable amount of the auxiliary power.

[0026] Optionally, in the power supply device for coordinated control of wind power generation and thermal power generation, the acquisition module includes:

[0027] A total wind curtailment detection unit is used to obtain the total wind curtailment amount of the wind turbine;

[0028] A judgment unit, configured to judge whether the total amount of abandoned air exceeds a starting threshold;

[0029] The starting unit is used to obtain the operating parameters of the wind turbine group and the thermal power group when the total wind curtailment exceeds the starting threshold.

[0030] Optionally, in the power supply device for coordinated control of wind power generation and thermal power generation, the acquisition module includes:

[0031] A multiple acquisition unit is used to obtain the total wind curtailment of the wind turbine, the operating parameters of the wind turbine, the minimum load of the thermal power unit and the operating parameters of the thermal power unit;

[0032] Accordingly, the auxiliary power module includes:

[0033] The minimum auxiliary power unit is used to determine the transferable amount of auxiliary power according to the operating parameters of the thermal power unit and the minimum load of the unit.

[0034] Optionally, in the power supply device for coordinated control of wind power generation and thermal power generation, the control module includes:

[0035] A primary frequency regulation control unit is used to control the wind turbine to supply energy to the thermal power unit based on the virtual energy storage information of the wind turbine, the transferable amount of the plant power and the preset primary frequency regulation capability parameters of the power grid.

[0036] A power supply device for coordinated control of wind power generation and thermal power generation, comprising:

[0037] memory for storing computer programs;

[0038] A processor is configured to implement the steps of any of the above-described power supply methods for coordinated control of wind power generation and thermal power generation when executing the computer program.

[0039] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of any of the above-mentioned power supply methods for coordinated control of wind power generation and thermal power generation.

[0040] The power supply method for coordinated control of wind power generation and thermal power generation provided by the present invention obtains the total wind curtailment of the wind turbine, the operating parameters of the wind turbine, and the operating parameters of the thermal power unit; determines the virtual energy storage energy information of the wind turbine based on the total wind curtailment and the operating parameters of the wind turbine; determines the transferable amount of plant power based on the operating parameters of the thermal power unit; and controls the wind turbine to supply energy to the thermal power unit based on the virtual energy storage information of the wind turbine and the transferable amount of plant power. The present invention utilizes the technical concept of virtual energy storage to calculate the virtual energy storage corresponding to the total wind curtailment of the wind turbine that can be utilized, and uses this energy to power the power equipment of the thermal power plant itself, that is, to transfer the load of the plant power system of the thermal power plant from the thermal power plant generator to the wind turbine generator. While ensuring that the total on-grid load of the thermal power plant remains unchanged, the fuel consumption of the plant is reduced, the proportion of thermal power generation in electricity is further reduced, the utilization rate of wind energy is improved, and energy conservation and emission reduction are further promoted. From another perspective, the power generation efficiency per unit amount of fossil fuel is also improved. The present invention also provides a power supply device, equipment and computer-readable storage medium for coordinated control of wind power generation and thermal power generation having the above-mentioned beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0042] Figure 1 A flow chart of a specific embodiment of the power supply method for coordinated control of wind power generation and thermal power generation provided by the present invention;

[0043] Figure 2 A flow chart of another specific embodiment of the power supply method for coordinated control of wind power generation and thermal power generation provided by the present invention;

[0044] Figure 3 A flow chart of another specific embodiment of the power supply method for coordinated control of wind power generation and thermal power generation provided by the present invention;

[0045] Figure 4 A schematic structural diagram of a specific embodiment of a power supply device for coordinated control of wind power generation and thermal power generation provided by the present invention. DETAILED DESCRIPTION

[0046] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0047] The core of the present invention is to provide a power supply method for coordinated control of wind power generation and thermal power generation, a flow chart of a specific embodiment of the invention is shown as follows: Figure 1 As shown, it is called specific implementation method one, including:

[0048] S101: Obtain the total wind curtailment volume of the wind turbine generator set, the wind turbine generator set operating parameters, and the thermal power generator set operating parameters.

[0049] Assuming that there are m wind turbines in the region, the wind curtailment capacity of the i-th wind turbine can be expressed as

[0050]

[0051] in, represents the abandoned wind volume of the i-th wind turbine unit, represents the current maximum possible power generation load of the i-th wind turbine, represents the actual load of the i-th wind turbine. The total wind curtailment of wind turbines in this area can be expressed as

[0052]

[0053] S102: Determine virtual energy storage energy information of the wind turbine according to the total wind curtailment amount and the wind turbine operating parameters.

[0054] S103: Determine the transferable amount of auxiliary power according to the operating parameters of the thermal power unit.

[0055] Assume that there are n thermal power units in the region, and the power consumption of the jth thermal power unit is The workload of the unit There is a functional relationship between

[0056]

[0057] The total power consumption of thermal power units in this area can be expressed as

[0058]

[0059] S104: Controlling the wind turbine to supply energy to the thermal power generation unit according to the wind turbine virtual energy storage information and the transferable amount of the auxiliary power.

[0060] Of course, other constraint information may be further considered, such as the primary frequency regulation capability parameter of the power grid, and the wind turbine generator set supplies energy to the thermal turbine generator set. The specific steps include:

[0061] According to the virtual energy storage information of the wind turbine, the transferable amount of the plant power and the preset primary frequency regulation capability parameters of the power grid, the wind turbine group is controlled to supply energy to the thermal power group.

[0062] Using the abandoned wind power of wind turbines for power generation of thermal power plants has reduced the ability of wind turbines in the region to participate in primary frequency regulation to a certain extent. Therefore, in order to ensure the primary frequency regulation capability of the regional power grid, it is necessary to maximize the overall primary frequency regulation capability of the regional power grid when optimizing the abandoned wind power reuse.

[0063] The primary frequency regulation capability of the i-th wind turbine in the area It can be expressed as

[0064]

[0065] in, It is expressed as the amount of wind curtailment reused by the i-th wind turbine.

[0066] The primary frequency regulation capability of a thermal power unit is related to the unit workload. Here we assume that the primary frequency regulation capability of the jth thermal power unit is There is a functional relationship between the unit's workload

[0067]

[0068] Without considering other power generation methods, the power grid's ability to participate in primary frequency regulation in this area can be expressed as

[0069]

[0070] After the parameters of the primary frequency regulation capability of the power grid are limited, the primary frequency regulation capability of the power grid is taken into consideration during the power transfer and transmission process, leaving a certain margin so that if power grid fluctuations occur during power transmission, the power grid can adjust through its own frequency regulation to avoid faults and increase the stability of the power grid.

[0071] The power supply method for coordinated control of wind power generation and thermal power generation provided by the present invention obtains the total wind abandonment of the wind turbine, the operating parameters of the wind turbine and the operating parameters of the thermal power; determines the virtual energy storage energy information of the wind turbine according to the total wind abandonment and the operating parameters of the wind turbine; determines the transferable amount of plant power according to the operating parameters of the thermal power; and controls the wind turbine to supply energy to the thermal power according to the virtual energy storage information of the wind turbine and the transferable amount of plant power. The present invention uses the technical concept of virtual energy storage to calculate the virtual energy storage corresponding to the total wind abandonment of the wind turbine that can be utilized, and uses this energy to power the thermal power plant's own electrical equipment, that is, to transfer the load of the thermal power plant's plant power system from the thermal power plant generator to the wind turbine generator. While ensuring that the total on-grid load of the thermal power plant remains unchanged, the fuel consumption of the plant is reduced, the utilization rate of wind energy is improved, and energy conservation and emission reduction are further promoted.

[0072] On the basis of the specific implementation method 1, the conditions for starting the energy supply are further limited to obtain the specific implementation method 2, the flow chart of which is as follows Figure 2 Shown, including:

[0073] S201: Obtain the total amount of wind curtailment of the wind turbine.

[0074] S202: Determine whether the total air curtailment volume exceeds a start threshold.

[0075] The start threshold is a preset value.

[0076] S203: When the total wind curtailment exceeds a start threshold, the operating parameters of the wind turbine generator set and the thermal power generator set are obtained.

[0077] S204: Determine virtual energy storage energy information of the wind turbine according to the total abandoned wind volume and the wind turbine operating parameters.

[0078] S205: Determine the transferable amount of auxiliary power according to the operating parameters of the thermal power unit.

[0079] S206: Control the wind turbine to supply energy to the thermal power generation unit according to the wind turbine virtual energy storage information and the transferable amount of the auxiliary power.

[0080] In this specific implementation, subsequent steps will only be performed when the total wind abandonment exceeds the starting threshold, that is, when it is large enough, thereby avoiding frequent start and stop of power supply transfer when the wind is unstable, improving the operating stability of the system, and reducing the pressure on the power grid.

[0081] On the basis of the second embodiment, further constraints are added to obtain the third embodiment, the flow chart of which is as follows: Figure 3 Shown, including:

[0082] S301: Obtain the total amount of wind curtailment of the wind turbine.

[0083] S302: Determine whether the total air curtailment volume exceeds a start threshold.

[0084] S303: When the total wind curtailment exceeds the startup threshold, the wind turbine operating parameters, the minimum load of the thermal power unit, and the thermal power unit operating parameters are obtained.

[0085] S304: Determine virtual energy storage energy information of the wind turbine according to the total wind curtailment amount and the wind turbine operating parameters.

[0086] S305: Determine the transferable amount of auxiliary power according to the operating parameters of the thermal power unit and the minimum load of the unit.

[0087] S306: Control the wind turbine to supply energy to the thermal power unit according to the virtual energy storage information of the wind turbine and the transferable amount of the auxiliary power.

[0088] The above method takes into account the minimum load of the thermal power unit. When the thermal power unit operates in the low load section, the boiler combustion stability is poor, the water-cooled wall and heating surface flue gas temperature deviation is large, and the system operation safety is reduced. Therefore, in order to ensure the safe operation of the thermal power unit, the lower limit of the thermal power unit operating load needs to be considered during the optimization process.

[0089] Specifically, it is assumed here that the minimum load of the jth thermal power unit is The workload of thermal power units in this area must meet the following requirements:

[0090]

[0091] In addition to the above-mentioned minimum load, there are other constraints on the energy supply of wind turbines to thermal power units. For example, the initial pressure and initial temperature of steam and the exhaust pressure of the turbine will affect the thermal efficiency of the Rankine cycle. Therefore, the thermal efficiency of the thermal power unit is related to the unit load. In order to reduce fossil fuel combustion and reduce carbon emissions, it is necessary to increase the thermal efficiency of coal-fired units in the region as much as possible.

[0092] The thermal efficiency η of the jth thermal power unit in the region j It can be expressed as:

[0093]

[0094] Among them, Q j It represents the heat contained in the fuel consumed by the unit. The average thermal efficiency η of all thermal power units in the area can be expressed as:

[0095]

[0096] In combination with the above-mentioned various embodiments, the total amount of abandoned wind volume converted into plant electricity consumption according to the present invention can be expressed as follows:

[0097] In order to reduce fossil fuel combustion and carbon emissions, it is necessary to increase the proportion of virtual energy storage transferred to plant power as much as possible in the total plant power consumption. The total amount of virtual energy storage transferred to plant power P zy It can be expressed as the sum of the transfer amounts of each wind turbine, that is:

[0098]

[0099] At the same time, the total amount of transfer should not exceed the total abandoned wind volume P of wind turbines in the area. q and the total power consumption of thermal power units P cy ,Right now:

[0100] P zy ≤P q (12)

[0101] P zy ≤P cy (13)

[0102] Combining the above points, we can get the multi-objective optimization problem of calculating the amount of wind curtailment reuse:

[0103]

[0104]

[0105]

[0106]

[0107] 0≤P zy ≤P q

[0108] 0≤P zy ≤P cy

[0109] The following is an introduction to the power supply device for coordinated control of wind power generation and thermal power generation provided by an embodiment of the present invention. The power supply device for coordinated control of wind power generation and thermal power generation described below and the power supply method for coordinated control of wind power generation and thermal power generation described above can be referenced to each other.

[0110] Figure 4 The structural block diagram of the power supply device for coordinated control of wind power generation and thermal power generation provided by the embodiment of the present invention is shown in FIG. Figure 4 The power supply device for coordinated control of wind power generation and thermal power generation may include:

[0111] An acquisition module 100 is used to obtain the total wind curtailment of the wind turbine, the operating parameters of the wind turbine and the operating parameters of the thermal power unit;

[0112] The virtual energy module 200 is used to determine the virtual energy storage energy information of the wind turbine according to the total wind curtailment amount and the operating parameters of the wind turbine;

[0113] Auxiliary power module 300, configured to determine the transferable amount of auxiliary power according to the operating parameters of the thermal power unit;

[0114] The control module 400 is configured to control the wind turbine to supply energy to the thermal power generation group according to the wind turbine virtual energy storage information and the transferable amount of the auxiliary power.

[0115] As a preferred embodiment, the acquisition module 100 includes:

[0116] A total wind curtailment detection unit is used to obtain the total wind curtailment amount of the wind turbine;

[0117] A judgment unit, configured to judge whether the total abandoned air volume exceeds a start threshold;

[0118] The starting unit is used to obtain the operating parameters of the wind turbine group and the thermal power group when the total wind curtailment exceeds the starting threshold.

[0119] As a preferred embodiment, the acquisition module 100 includes:

[0120] A multiple acquisition unit is used to obtain the total wind curtailment of the wind turbine, the operating parameters of the wind turbine, the minimum load of the thermal power unit and the operating parameters of the thermal power unit;

[0121] Accordingly, the auxiliary power module includes:

[0122] The minimum auxiliary power unit is used to determine the transferable amount of auxiliary power according to the operating parameters of the thermal power unit and the minimum load of the unit.

[0123] As a preferred embodiment, the control module 400 includes:

[0124] A primary frequency regulation control unit is used to control the wind turbine to supply energy to the thermal power unit based on the virtual energy storage information of the wind turbine, the transferable amount of the plant power and the preset primary frequency regulation capability parameters of the power grid.

[0125] The power supply device for coordinated control of wind power generation and thermal power generation provided by the present invention is configured to obtain the total wind curtailment of the wind turbine, the operating parameters of the wind turbine, and the operating parameters of the thermal turbine through an acquisition module 100; a virtual energy module 200 is configured to determine the virtual energy storage information of the wind turbine based on the total wind curtailment and the operating parameters of the wind turbine; a plant power module 300 is configured to determine the transferable plant power based on the operating parameters of the thermal turbine; and a control module 400 is configured to control the wind turbine to supply energy to the thermal turbine based on the virtual energy storage information of the wind turbine and the transferable plant power. The present invention utilizes the technical concept of virtual energy storage to calculate the virtual energy storage corresponding to the total wind curtailment of the wind turbine that can be utilized, and uses this energy to power the thermal power plant's own electrical equipment, that is, to transfer the load of the thermal power plant's plant power system from the thermal power plant generator to the wind turbine generator. While ensuring that the total on-grid load of the thermal power plant remains unchanged, the plant's fuel consumption is reduced, the utilization rate of wind energy is improved, and energy conservation and emission reduction are further promoted.

[0126] The power supply device for coordinated control of wind power generation and thermal power generation in this embodiment is used to implement the aforementioned power supply method for coordinated control of wind power generation and thermal power generation. Therefore, the specific implementation methods of the power supply device for coordinated control of wind power generation and thermal power generation can be seen in the embodiment part of the power supply method for coordinated control of wind power generation and thermal power generation in the previous text. For example, the acquisition module 100, the virtual energy module 200, the plant power module 300, and the control module 400 are respectively used to implement steps S101, S102, S103 and S104 in the aforementioned power supply method for coordinated control of wind power generation and thermal power generation. Therefore, its specific implementation methods can refer to the descriptions of the corresponding embodiments of each part and will not be repeated here.

[0127] The present invention also provides a power supply device for coordinated control of wind power generation and thermal power generation, comprising:

[0128] memory for storing computer programs;

[0129] A processor, configured to implement the steps of any of the above-described power supply methods for coordinated control of wind power generation and thermal power generation when executing the computer program. The power supply method for coordinated control of wind power generation and thermal power generation provided by the present invention obtains the total wind curtailment of the wind turbine, the operating parameters of the wind turbine, and the operating parameters of the thermal power unit; determines the virtual energy storage energy information of the wind turbine based on the total wind curtailment and the operating parameters of the wind turbine; determines the transferable amount of plant power based on the operating parameters of the thermal power unit; and controls the wind turbine to supply energy to the thermal power unit based on the virtual energy storage information of the wind turbine and the transferable amount of plant power. The present invention utilizes the technical concept of virtual energy storage to calculate the virtual energy storage corresponding to the total wind curtailment of the wind turbine that can be utilized, and uses this energy to power the thermal power plant's own electrical equipment, that is, to transfer the load of the thermal power plant's plant power system from the thermal power plant generator to the wind turbine generator. While ensuring that the total on-grid load of the thermal power plant remains unchanged, the plant's fuel consumption is reduced, the wind energy utilization rate is improved, and energy conservation and emission reduction are further promoted.

[0130] The present invention also provides a computer-readable storage medium having a computer program stored thereon. When executed by a processor, the computer program implements the steps of any of the above-described methods for coordinated control of wind power generation and thermal power generation. The method for coordinated control of wind power generation and thermal power generation provided by the present invention obtains the total wind curtailment of the wind turbine, wind turbine operating parameters, and thermal power unit operating parameters; determines wind turbine virtual energy storage information based on the total wind curtailment and wind turbine operating parameters; determines the transferable amount of plant power based on the thermal power unit operating parameters; and controls the wind turbine to supply energy to the thermal power unit based on the wind turbine virtual energy storage information and the transferable amount of plant power. The present invention utilizes the technical concept of virtual energy storage to calculate the virtual energy storage corresponding to the total wind curtailment of the wind turbine that can be utilized, and uses this energy to power the thermal power plant's own electrical equipment, thereby transferring the load of the thermal power plant's plant power system from the thermal power plant generators to the wind turbine generators. While ensuring that the total grid-connected load of the thermal power plant remains unchanged, the plant's fuel consumption is reduced, wind energy utilization is improved, and energy conservation and emission reduction are further promoted.

[0131] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from the other embodiments. Reference can be made to the descriptions of the identical or similar parts between the various embodiments. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and the relevant parts can be referred to the descriptions of the methods.

[0132] It should be noted that, in this specification, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0133] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the above description has generally described the components and steps of each example according to their functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present invention.

[0134] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0135] The above is a detailed introduction to the power supply method, device, equipment and computer-readable storage medium for coordinated control of wind power generation and thermal power generation provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in several ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A power supply method for coordinated control of wind power generation and thermal power generation, characterized in that: include: Obtain the total abandoned wind volume of wind turbines, wind turbine operating parameters and thermal power unit operating parameters; Determining wind turbine virtual energy storage information according to the total abandoned wind volume and the wind turbine operating parameters; Determining the transferable amount of auxiliary power according to the operating parameters of the thermal power unit; Controlling the wind turbine to supply energy to the thermal power unit according to the wind turbine virtual energy storage information and the transferable amount of the auxiliary power; The controlling the wind turbine to supply energy to the thermal power generation group according to the wind turbine virtual energy storage information and the transferable amount of auxiliary power includes: Controlling the wind turbine to supply energy to the thermal power unit according to the wind turbine virtual energy storage information, the transferable amount of the auxiliary power and the preset grid primary frequency regulation capability parameters; The primary frequency regulation capability of the i-th wind turbine in the region It is expressed as follows: in, is the wind curtailment reuse amount of the i-th wind turbine generator set, represents the current maximum possible power generation load of the i-th wind turbine, Indicates the actual load of the i-th wind turbine; The grid primary frequency regulation capability parameter P tp It is expressed by the following formula: in, is the primary frequency regulation capability of the jth thermal power unit.

2. The power supply method for coordinated control of wind power generation and thermal power generation according to claim 1, characterized in that: The acquisition of the total abandoned wind volume of the wind turbine generator set, the wind turbine generator set operating parameters and the thermal power generator set operating parameters includes: Get the total abandoned wind volume of wind turbines; Determining whether the total abandoned air volume exceeds a start threshold; When the total abandoned wind volume exceeds the startup threshold, the wind turbine operating parameters and the thermal power unit operating parameters are obtained.

3. The power supply method for coordinated control of wind power generation and thermal power generation according to claim 1, characterized in that: The acquisition of the total abandoned wind volume of the wind turbine generator set, the wind turbine generator set operating parameters and the thermal power generator set operating parameters includes: Obtain the total abandoned wind volume of wind turbines, wind turbine operating parameters, minimum unit load of thermal power units, and thermal power unit operating parameters; Accordingly, determining the transferable amount of auxiliary power according to the operating parameters of the thermal power unit includes: The transferable amount of plant electricity is determined based on the operating parameters of the thermal power unit and the minimum load of the unit.

4. A power supply device for coordinated control of wind power generation and thermal power generation, characterized in that: include: An acquisition module is used to obtain the total abandoned wind volume of the wind turbine, the operating parameters of the wind turbine and the operating parameters of the thermal power unit; A virtual energy module, configured to determine virtual energy storage information of the wind turbine according to the total abandoned wind volume and the operating parameters of the wind turbine set; Auxiliary power module, used to determine the transferable amount of auxiliary power according to the operating parameters of the thermal power unit; a control module, configured to control the wind turbine to supply energy to the thermal power generation unit according to the wind turbine virtual energy storage information and the transferable amount of auxiliary power; The control module includes: a primary frequency regulation control unit, configured to control the wind turbine to supply energy to the thermal power unit based on the wind turbine virtual energy storage information, the transferable amount of auxiliary power, and a preset grid primary frequency regulation capability parameter; The primary frequency regulation capability of the i-th wind turbine in the region It is expressed as follows: in, is the wind curtailment reuse amount of the i-th wind turbine generator set, represents the current maximum possible power generation load of the i-th wind turbine, Indicates the actual load of the i-th wind turbine; The grid primary frequency regulation capability parameter P tp It is expressed by the following formula: in, is the primary frequency regulation capability of the jth thermal power unit.

5. The power supply device for coordinated control of wind power generation and thermal power generation according to claim 4, characterized in that: The acquisition module includes: A total wind curtailment detection unit is used to obtain the total wind curtailment amount of the wind turbine; A judgment unit, configured to judge whether the total abandoned air volume exceeds a start threshold; The starting unit is used to obtain the operating parameters of the wind turbine group and the thermal power group when the total wind curtailment exceeds the starting threshold.

6. The power supply device for coordinated control of wind power generation and thermal power generation according to claim 4, characterized in that: The acquisition module includes: A multiple acquisition unit is used to obtain the total wind curtailment of the wind turbine, the operating parameters of the wind turbine, the minimum load of the thermal power unit and the operating parameters of the thermal power unit; Accordingly, the auxiliary power module includes: The minimum auxiliary power unit is used to determine the transferable amount of auxiliary power according to the operating parameters of the thermal power unit and the minimum load of the unit.

7. A power supply device for coordinated control of wind power generation and thermal power generation, characterized in that: include: memory for storing computer programs; A processor is configured to implement the steps of the power supply method for coordinated control of wind power generation and thermal power generation as described in any one of claims 1 to 3 when executing the computer program.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the power supply method for coordinated control of wind power generation and thermal power generation as described in any one of claims 1 to 3.

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