Control methods, devices and systems for wind power and coal power

Abstract

The present application provides a method, device and system for controlling wind power and coal power. The method includes: obtaining the wind power curtailment cost of the wind turbine in each time period and the coal power operation cost and coal power startup cost of the coal power unit in each time period, the wind power curtailment output is used to characterize the power required for the wind turbine to generate reactive power when working; using a wind power and coal power scheduling model, outputting a scheduling result based on the wind power curtailment output, coal power operation cost and coal power startup cost, the scheduling result includes the wind power curtailment output of the wind turbine in the whole year, and the coal power operation cost and coal power startup cost of the coal power unit in the whole year. By adding the consideration of wind power curtailment output, coal power operation cost and coal power startup cost, the accuracy of the subsequent output scheduling results is improved, thereby solving the problem of low accuracy of wind power and coal power scheduling results in the existing scheme.

Description

Technical Field

[0001] The present application relates to the field of wind power and coal power control technology, and more specifically, to a wind power and coal power control method, device, computer-readable storage medium, and system. Background Art

[0002] Wind power is random, volatile, and intermittent, making it difficult to accurately characterize its typical daily power generation curve. Coal-fired power generation typically has year-round power requirements. When coal-fired power is bundled with wind power for transmission, it is subject to channel capacity constraints and must be coordinated with wind power to ensure efficient power transmission. Existing modeling methods focus on calculation cycles over the next day or several days. Because they fail to account for the year-round randomness, volatility, and intermittency of wind power and the year-round power constraints of coal power, this technology cannot accurately evaluate the optimal scheduling results for bundled wind and coal power. Summary of the Invention

[0003] The main purpose of this application is to provide a control method, device, computer-readable storage medium and system for wind power and coal power, so as to at least solve the problem of low accuracy of wind power and coal power scheduling results in existing solutions.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a method for controlling wind power and coal-fired power is provided, which includes: obtaining the wind power curtailment output of the wind turbine in each time period and the coal-fired power operating costs and coal-fired power startup costs of the coal-fired power group in each time period, wherein the wind power curtailment output is used to characterize the power required for the wind turbine to generate reactive power when working; adopting a wind power and coal-fired power scheduling model, and outputting a scheduling result based on the wind power curtailment output, the coal-fired power operating costs and the coal-fired power startup costs, wherein the scheduling result includes the wind power curtailment output of the wind turbine throughout the year, and the coal-fired power operating costs and the coal-fired power startup costs of the coal-fired power group throughout the year.

[0005] Optionally, a wind power and coal-fired power dispatching model is adopted to output a dispatching result based on the wind power curtailment output, the coal-fired power operating cost and the coal-fired power startup cost, including: obtaining the curtailment penalty coefficient of the wind turbine and the effective power generation coefficient of the wind turbine, the curtailment penalty coefficient is used to characterize the degree of impact caused by the wind turbine generating invalid power during operation, and the effective power generation coefficient is used to characterize the degree of ability of the wind turbine generating effective power during operation; adopting the wind power and coal-fired power dispatching model, the dispatching result is output based on the curtailment penalty coefficient, the effective power generation coefficient of the wind turbine, the wind power curtailment output, the coal-fired power operating cost and the coal-fired power startup cost.

[0006] Optionally, in the process of adopting the wind power and coal power dispatch model and outputting the dispatch result according to the wind power curtailment output, the coal power operation cost and the coal power startup cost, the method further includes:

[0007] use The wind power and coal power dispatch model is constrained, where P i,t is the output of the i-th coal-fired power unit in time period t, is the abandoned power output of the jth wind turbine in time period t, J is the total number of wind turbines, I is the total number of coal-fired power units, D t is the total load brought by the wind turbine group and the coal-fired power group in the time period t.

[0008] Optionally, in the process of adopting the wind power and coal power dispatch model and outputting the dispatch result according to the wind power curtailment output, the coal power operation cost and the coal power startup cost, the method further includes:

[0009] use The wind power and coal power dispatch model is constrained, where α i,t is the start and stop status of the i-th coal-fired power unit in time period t, is the minimum output of the i-th coal-fired power unit in time period t, is the maximum output of the i-th coal-fired power unit in time period t, P i,t is the output of the i-th coal-fired power unit in time period t.

[0010] Optionally, in the process of adopting the wind power and coal power dispatch model and outputting the dispatch result according to the wind power curtailment output, the coal power operation cost and the coal power startup cost, the method further includes:

[0011] use

[0012] and

[0013] The wind power and coal power dispatch model is constrained, where P i,t-1 is the output of the i-th coal-fired power unit in the t-1 period, α i,t-1 is the start and stop status of the i-th coal-fired power unit in the t-1 period, ΔP i U is the change in output of the i-th coal-fired power unit in time period t, ΔP i D is the change in output drop of the i-th coal-fired power unit in time period t.

[0014] Optionally, in the process of adopting the wind power and coal power dispatch model and outputting the dispatch result according to the wind power curtailment output, the coal power operation cost and the coal power startup cost, the method further includes:

[0015] use and The wind power and coal power dispatch model is constrained, wherein: are the continuous start-up time and continuous shutdown time of the i-th coal-fired power unit in time period t, T D 、T U are respectively the minimum continuous start-up time and the minimum continuous shutdown time of the i-th coal-fired power unit in time period t.

[0016] Optionally, in the process of adopting the wind power and coal power dispatch model and outputting the dispatch result according to the wind power curtailment output, the coal power operation cost and the coal power startup cost, the method further includes:

[0017] use and The wind power and coal power dispatch model is constrained, where η i,t , γ i,t are the startup variables and shutdown variables of the i-th coal-fired power unit in time period t, are the maximum number of starts and the maximum number of shutdowns of the i-th coal-fired power unit in time period t, E min 、E max are the minimum and maximum power generation of the coal-fired power generation units in the whole year, I is the total number of coal-fired power generation units, T is the total number of time periods, P i,t is the output of the i-th coal-fired power unit in time period t.

[0018] According to another aspect of the present application, a control device for wind power and coal power is provided, which includes an acquisition unit and a processing unit; the acquisition unit is used to obtain the wind power curtailment output of the wind turbine in each time period and the coal power operation cost and coal power startup cost of the coal turbine in each time period, and the wind power curtailment output is used to characterize the power required for the wind turbine to generate reactive power when working; the processing unit is used to adopt a wind power and coal power scheduling model, and output a scheduling result according to the wind power curtailment output, the coal power operation cost and the coal power startup cost, and the scheduling result includes the wind power curtailment output of the wind turbine throughout the year, and the coal power operation cost and the coal power startup cost of the coal turbine throughout the year.

[0019] According to another aspect of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes a stored program, wherein when the program is run, the device where the computer-readable storage medium is located is controlled to execute any one of the wind power and coal power control methods.

[0020] According to another aspect of the present application, a control system for wind power and coal power is provided, which includes one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for executing any one of the wind power and coal power control methods.

[0021] By applying the technical solution of the present application, the accuracy of subsequent output scheduling results is improved by taking into account the wind power curtailment output, the coal-fired power operating costs and the coal-fired power startup costs, thereby solving the problem of low accuracy of wind power and coal-fired power scheduling results in existing solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings that constitute part of this application are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation on this application. In the drawings:

[0023] Figure 1 A hardware structure block diagram of a mobile terminal for executing a method for controlling wind power and coal power provided in an embodiment of the present application is shown;

[0024] Figure 2 A schematic flow chart of a method for controlling wind power and coal power provided according to an embodiment of the present application is shown;

[0025] Figure 3 The figure shows a structural block diagram of a wind power and coal power control device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] As introduced in the background technology, the model method in the existing scheme focuses on the calculation cycle of the next day or the next few days. Because it cannot take into account the randomness, volatility, and intermittent characteristics of wind power throughout the year and cannot take into account the annual power limit requirements of coal-fired power, this technology cannot accurately evaluate the optimized scheduling results under the bundled transmission of wind power and coal-fired power. In order to solve the problem of low accuracy of wind power and coal-fired power scheduling results in the existing scheme, the embodiments of the present application provide a control method, device, computer-readable storage medium and system for wind power and coal-fired power.

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0031] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 This is a hardware structure block diagram of a mobile terminal for a method for controlling wind power and coal power according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown) a processor 102 (the processor 102 may include but is not limited to a microprocessor MCU or a programmable logic device FPGA and other processing devices) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input and output device 108 for communication functions. It will be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components than shown, or with Figure 1 Different configurations shown.

[0032] The memory 104 can be used to store computer programs, such as software programs and modules of application software, such as the computer program corresponding to the device information display method in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, implementing the above-mentioned method. The memory 104 may include a high-speed random access memory and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely located relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the above-mentioned networks include but are not limited to the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof. The transmission device 106 is used to receive or send data via a network. Specific examples of the above-mentioned network may include a wireless network provided by the mobile terminal's communication provider. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, abbreviated as NIC), which can be connected to other network devices via a base station to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0033] In this embodiment, a method for controlling wind power and coal power running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0034] Figure 2 This is a flow chart of a method for controlling wind power and coal power according to an embodiment of the present application. Figure 2 As shown, the method includes the following steps:

[0035] Step S201, obtaining the wind power curtailment cost of the wind turbine in each time period and the coal-fired power operation cost and coal-fired power startup cost of the coal-fired power unit in each time period, wherein the wind power curtailment output is used to represent the power required by the wind turbine to generate reactive power when operating;

[0036] Coal-fired power operating costs refer to the costs required to maintain the operation of coal-fired power units. Coal-fired power startup costs refer to the costs required to start coal-fired power units. The type of wind turbine unit is an offshore wind turbine unit.

[0037] Step S202: adopting the wind power and coal power dispatching model, outputting the dispatching result according to the above-mentioned wind power curtailment output, the above-mentioned coal power operation cost and the above-mentioned coal power startup cost. The above-mentioned dispatching result includes the above-mentioned wind power curtailment output of the above-mentioned wind turbine unit in the whole year, and the above-mentioned coal power operation cost and the above-mentioned coal power startup cost of the above-mentioned coal turbine unit in the whole year.

[0038] By taking into account the curtailed wind power output, the above-mentioned coal-fired power operating costs and the above-mentioned coal-fired power startup costs, the accuracy of subsequent output scheduling results is improved, thereby solving the problem of low accuracy of wind power and coal-fired power scheduling results in the existing scheme.

[0039] Specifically, the wind power and coal power dispatch model is:

[0040] Among them, C i,t (P i,t ) is the coal-fired power operation cost of the i-th coal-fired power unit in time period t, is the coal-fired power startup cost of the i-th coal-fired power unit in time period t, M1 is the power abandonment penalty coefficient, is the abandoned power output of the j-th wind turbine in time period t, C is the effective power generation coefficient of the wind turbine, J is the total number of wind turbines, I is the total number of coal-fired power units, and T is the total number of time periods.

[0041] Among them, the above-mentioned wind power and coal-fired power scheduling model is a model trained using multiple sets of historical wind turbine data and multiple sets of historical coal-fired power data. Each of the above-mentioned multiple sets of historical coal-fired power data includes the above-mentioned coal-fired power operating costs and the above-mentioned coal-fired power startup costs of the above-mentioned coal-fired power units in each time period obtained during the historical time period. Each of the above-mentioned multiple sets of historical wind turbine data includes the above-mentioned wind power curtailment output of the above-mentioned wind turbine units in each time period obtained during the historical time period.

[0042] In one embodiment of the present application, in the process of outputting a scheduling result using a wind power and coal power scheduling model based on the above-mentioned wind power curtailment output, the above-mentioned coal power operating cost, and the above-mentioned coal power startup cost, the above-mentioned method further includes:

[0043] use The above wind power and coal power dispatch model is constrained, where P i,t is the output of the i-th coal-fired power unit in time period t, is the abandoned power output of the j-th wind turbine in time period t, J is the total number of wind turbines, I is the total number of coal-fired power units, D t is the total load brought by the above-mentioned wind turbines and coal-fired power units in time period t.

[0044] Specifically, the output of coal-fired power units and the output of wind power units in each time period are added to obtain the total load, so as to constrain the scheduling results output by the wind power and coal power scheduling models.

[0045] In one embodiment of the present application, in the process of outputting a scheduling result using a wind power and coal power scheduling model based on the above-mentioned wind power curtailment output, the above-mentioned coal power operating cost, and the above-mentioned coal power startup cost, the above-mentioned method further includes:

[0046] use Constrain the above wind power and coal power dispatch model, where α i,t is the start and stop status of the i-th coal-fired power unit in time period t, is the minimum output of the i-th coal-fired power unit in time period t, is the maximum output of the i-th coal-fired power unit in time period t, P i,t is the output of the i-th coal-fired power unit in time period t. The start-stop state can effectively limit the output of coal-fired power.

[0047] Specifically, by adding the maximum and minimum output values, the output of the coal-fired power unit in the time period t is limited, thereby constraining the scheduling results output by the wind power and coal power scheduling model.

[0048] In one embodiment of the present application, in the process of outputting a scheduling result using a wind power and coal power scheduling model based on the above-mentioned wind power curtailment output, the above-mentioned coal power operating cost, and the above-mentioned coal power startup cost, the above-mentioned method further includes:

[0049] use

[0050] and

[0051] The above wind power and coal power dispatch model is constrained, where P i,t-1 is the output of the i-th coal-fired power unit in the t-1 period, α i,t-1 is the start and stop status of the i-th coal-fired power unit in the t-1 period, ΔP i U is the change in output of the i-th coal-fired power unit in time period t, ΔP i D is the change in output drop of the i-th coal-fired power unit in time period t.

[0052] Specifically, the output change is limited to ensure that the output meets the actual climbing and descending technical parameters of the coal-fired power unit.

[0053] In one embodiment of the present application, in the process of outputting a scheduling result using a wind power and coal power scheduling model based on the above-mentioned wind power curtailment output, the above-mentioned coal power operating cost, and the above-mentioned coal power startup cost, the above-mentioned method further includes:

[0054] use and Constraints are imposed on the above wind power and coal power dispatching models, where: are the continuous start-up time and continuous shutdown time of the i-th coal-fired power unit in time period t, T D 、T U are respectively the minimum continuous start-up time and the minimum continuous shutdown time of the i-th coal-fired power unit in time period t.

[0055] Specifically, the continuous startup time must be greater than the minimum continuous startup time, and the continuous shutdown time must be greater than the minimum continuous shutdown time. For example, if the minimum continuous startup time is 2s, the continuous startup time must be greater than 2s to allow the coal-fired power unit to enter the shutdown state (i.e., state switching) to protect the coal-fired power unit.

[0056] In one embodiment of the present application, in the process of outputting a scheduling result using a wind power and coal power scheduling model based on the above-mentioned wind power curtailment output, the above-mentioned coal power operating cost, and the above-mentioned coal power startup cost, the above-mentioned method further includes:

[0057] use The above wind power and coal power dispatch model is constrained, where η i,t , γ i,t are the startup variables and shutdown variables of the i-th coal-fired power unit in time period t, are the maximum number of starts and shutdowns of the i-th coal-fired power unit in time period t, E min 、E max are the minimum and maximum power generation of the above coal-fired power units in the whole year, I is the total number of the above coal-fired power units, T is the total number of time periods, P i,t is the output of the i-th coal-fired power unit in time period t.

[0058] Specifically, ensure that the total number of starts and shutdowns of coal-fired power units throughout the year is less than the maximum number of starts and shutdowns, and at the same time limit the power generation of coal-fired power units throughout the year.

[0059] Through the above embodiment, by taking into account the wind power curtailment output, the above-mentioned coal-fired power operating costs and the above-mentioned coal-fired power startup costs, the accuracy of the subsequent output scheduling results is improved, thereby solving the problem of low accuracy of wind power and coal-fired power scheduling results in the existing solution.

[0060] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the implementation process of the wind power and coal power control method of the present application will be described in detail below with reference to specific embodiments.

[0061] This embodiment relates to a specific method for controlling wind power and coal power, including the following steps:

[0062] Step S1: Obtain the 8760-hour annual time-series power generation capacity curve of offshore wind power, the annual power generation requirements of coal-fired power, the installed unit capacity and power generation characteristics of coal-fired power units, the transmission channel capacity, and the 8760-hour annual time-series load curve of the receiving power grid; the annual power generation of coal-fired power is obtained by accumulating the coal-fired power output values ​​of the entire year for 8760 hours, the installed unit capacity of coal-fired power units refers to the scale of coal-fired power units, the power generation characteristics of coal-fired power refer to the minimum technical output of coal-fired power, climbing capability, descending capability, coal consumption at different output levels, etc., and the transmission channel capacity refers to the line capacity used to transmit offshore wind power and coal-fired power.

[0063] Step S2: With the goal of minimizing system cost, the objectives include maximizing the offshore wind power absorption rate and ensuring stable transmission channel power. Constraints include offshore wind power generation capacity, coal-fired power output limits, coal-fired power output ramping, coal-fired power start-up and shutdown durations, coal-fired power unit start-up and shutdown times, and annual coal-fired power generation limits. A wind and coal power dispatch model is constructed. The absorption rate is the ratio of offshore wind power's effective power generation to its potential power generation, used to evaluate wind power utilization. A stable transmission channel power means that the channel power curve is as smooth as possible.

[0064] Step S3: The mixed integer linear programming model is a classic model for solving the above problem. The above model is converted into a mixed integer linear programming model. The offshore wind power annual 8760-hour time-series power generation capacity curve, the annual power generation requirements of coal-fired power, the installed capacity and power generation characteristics of coal-fired power units, the transmission channel capacity, the receiving power grid annual 8760-hour time-series load curve and other data are used. The branch and bound method is used to solve the model and carry out offshore wind power and coal-fired power scheduling optimization calculations.

[0065] Step S4: Output the coal-fired power generation curve and power generation for 8,760 hours throughout the year, the offshore wind power generation curve, power generation, and curtailed power for 8,760 hours throughout the year, and the transmission channel power curve and transmitted power for 8,760 hours throughout the year. The curtailed power values ​​for the offshore wind power generation for 8,760 hours throughout the year are accumulated to obtain the curtailed power value, and the transmitted power value is accumulated to obtain the transmitted power value.

[0066] Adopting the 8760-hour annual power generation curve of offshore wind power, considering the annual power generation limit requirements of coal-fired power, the power generation characteristics of coal-fired power units, and the capacity limitations of transmission channels, optimized scheduling calculations are carried out to realize bundled power generation of coal-fired power and offshore wind power, and improve the utilization rate of transmission channels. The model method is close to engineering practice and has high calculation efficiency.

[0067] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0068] The embodiment of the present application also provides a control device for wind power and coal power. It should be noted that the control device for wind power and coal power in the embodiment of the present application can be used to execute the control method for wind power and coal power provided in the embodiment of the present application. The device is used to implement the above-mentioned embodiments and preferred implementation methods, and the details that have been explained will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and conceivable.

[0069] The following introduces the control devices for wind power and coal power provided in the embodiments of the present application.

[0070] Figure 3 This is a structural block diagram of a wind power and coal power control device provided according to an embodiment of the present application. Figure 3 As shown, the device includes an acquisition unit 31 and a processing unit 32; the acquisition unit 31 is used to obtain the wind power curtailment output of the wind turbine in each time period and the coal-fired power operation cost and coal-fired power startup cost of the coal-fired power unit in each time period, and the above-mentioned wind power curtailment output is used to characterize the power required for the above-mentioned wind turbine to generate reactive power when working; the processing unit 32 is used to adopt a wind power and coal-fired power scheduling model, and output a scheduling result according to the above-mentioned wind power curtailment output, the above-mentioned coal-fired power operation cost and the above-mentioned coal-fired power startup cost. The above-mentioned scheduling result includes the above-mentioned wind power curtailment output of the above-mentioned wind turbine in the whole year, and the above-mentioned coal-fired power operation cost and the above-mentioned coal-fired power startup cost of the above-mentioned coal-fired power unit in the whole year.

[0071] Among them, the above-mentioned wind power and coal-fired power scheduling model is a model trained using multiple sets of historical wind turbine data and multiple sets of historical coal-fired power data. Each of the above-mentioned multiple sets of historical coal-fired power data includes the above-mentioned coal-fired power operating costs and the above-mentioned coal-fired power startup costs of the above-mentioned coal-fired power units in each time period obtained during the historical time period. Each of the above-mentioned multiple sets of historical wind turbine data includes the above-mentioned wind power curtailment output of the above-mentioned wind turbine units in each time period obtained during the historical time period.

[0072] In the above-mentioned device, by taking into account the wind power curtailment output, the above-mentioned coal-fired power operating costs and the above-mentioned coal-fired power startup costs, the accuracy of the subsequent output scheduling results is improved, thereby solving the problem of low accuracy of wind power and coal-fired power scheduling results in the existing scheme.

[0073] In one embodiment of the present application, a wind power and coal-fired power dispatching model is adopted, and a dispatching result is output according to the above-mentioned wind power curtailment output, the above-mentioned coal-fired power operating cost and the above-mentioned coal-fired power startup cost, including: obtaining the curtailment penalty coefficient of the above-mentioned wind turbine and the effective power generation coefficient of the above-mentioned wind turbine, the above-mentioned curtailment penalty coefficient is used to characterize the degree of impact caused by the above-mentioned wind turbine generating invalid power during operation, and the above-mentioned effective power generation coefficient is used to characterize the degree of ability of the above-mentioned wind turbine generating effective power during operation; adopting the above-mentioned wind power and coal-fired power dispatching model, the dispatching result is output according to the above-mentioned curtailment penalty coefficient, the above-mentioned wind turbine generating effective power coefficient, the above-mentioned wind power curtailment output, the above-mentioned coal-fired power operating cost and the above-mentioned coal-fired power startup cost.

[0074] In one embodiment of the present application, in the process of outputting a scheduling result using a wind power and coal power scheduling model based on the above-mentioned wind power curtailment output, the above-mentioned coal power operating cost, and the above-mentioned coal power startup cost, the above-mentioned method further includes:

[0075] use The above wind power and coal power dispatch model is constrained, where P i,t is the output of the i-th coal-fired power unit in time period t (i.e., the power required for power generation), is the abandoned power output of the j-th wind turbine in time period t, J is the total number of wind turbines, I is the total number of coal-fired power units, D t is the total load brought by the above-mentioned wind turbines and coal-fired power units in time period t.

[0076] In one embodiment of the present application, in the process of outputting a scheduling result using a wind power and coal power scheduling model based on the above-mentioned wind power curtailment output, the above-mentioned coal power operating cost, and the above-mentioned coal power startup cost, the above-mentioned method further includes:

[0077] use Constrain the above wind power and coal power dispatch model, where α i,t is the start and stop status of the i-th coal-fired power unit in time period t, is the minimum output of the i-th coal-fired power unit in time period t, is the maximum output of the i-th coal-fired power unit in time period t, P i,t is the output of the i-th coal-fired power unit in time period t.

[0078] In one embodiment of the present application, in the process of outputting a scheduling result using a wind power and coal power scheduling model based on the above-mentioned wind power curtailment output, the above-mentioned coal power operating cost, and the above-mentioned coal power startup cost, the above-mentioned method further includes:

[0079] use

[0080] and

[0081] The above wind power and coal power dispatch model is constrained, where P i,t-1 is the output of the i-th coal-fired power unit in the t-1 period, α i,t-1 is the start and stop status of the i-th coal-fired power unit in the t-1 period, ΔP i U is the change in output of the i-th coal-fired power unit in time period t, ΔP i D is the change in output drop of the i-th coal-fired power unit in time period t.

[0082] In one embodiment of the present application, in the process of outputting a scheduling result using a wind power and coal power scheduling model based on the above-mentioned wind power curtailment output, the above-mentioned coal power operating cost, and the above-mentioned coal power startup cost, the above-mentioned method further includes:

[0083] use and Constraints are imposed on the above wind power and coal power dispatching models, where: are the continuous start-up time and continuous shutdown time of the i-th coal-fired power unit in time period t, T D 、T U are respectively the minimum continuous start-up time and the minimum continuous shutdown time of the i-th coal-fired power unit in time period t.

[0084] In one embodiment of the present application, in the process of outputting a scheduling result using a wind power and coal power scheduling model based on the above-mentioned wind power curtailment output, the above-mentioned coal power operating cost, and the above-mentioned coal power startup cost, the above-mentioned method further includes:

[0085] use and The above wind power and coal power dispatch model is constrained, where η i,t , γ i,t are the startup variables and shutdown variables of the i-th coal-fired power unit in time period t, are the maximum number of starts and shutdowns of the i-th coal-fired power unit in time period t, E min 、E max are the minimum and maximum power generation of the above coal-fired power units in the whole year, I is the total number of the above coal-fired power units, T is the total number of time periods, P i,t is the output of the i-th coal-fired power unit in time period t.

[0086] The wind power and coal power control device includes a processor and memory. The acquisition unit and processing unit are stored as program units in the memory, and the processor executes the program units stored in the memory to implement the corresponding functions. The modules are all located in the same processor; alternatively, the modules can be located in different processors in any combination.

[0087] The processor includes a core, which retrieves the corresponding program unit from the memory. One or more cores can be configured, and the low accuracy of wind and coal power dispatch results in existing solutions can be addressed by adjusting the core parameters.

[0088] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0089] An embodiment of the present invention provides a computer-readable storage medium, which includes a stored program. When the program is run, the device where the computer-readable storage medium is located is controlled to execute the wind power and coal power control method.

[0090] An embodiment of the present invention provides a processor, which is used to run a program, wherein the program executes the above-mentioned wind power and coal power control method when running.

[0091] An embodiment of the present invention provides a device comprising a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, at least the following steps are implemented: obtaining the wind power curtailment output of a wind turbine in each time period and the coal-fired power operating costs and coal-fired power startup costs of a coal-fired power unit in each time period, wherein the wind power curtailment output is used to characterize the power required by the wind turbine to generate reactive power during operation; and using a wind power and coal-fired power scheduling model to output a scheduling result based on the wind power curtailment output, the coal-fired power operating costs, and the coal-fired power startup costs. The scheduling result includes the wind power curtailment output of the wind turbine for the entire year, as well as the coal-fired power operating costs and coal-fired power startup costs of the coal-fired power unit for the entire year. The device herein may be a server, a PC, a PAD, a mobile phone, or the like.

[0092] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing an initialized program having at least the following method steps: obtaining the wind power curtailment output of the wind turbine in each time period and the coal-fired power operating costs and coal-fired power startup costs of the coal-fired power unit in each time period, the above-mentioned wind power curtailment output is used to characterize the power required for the above-mentioned wind turbine to generate reactive power when working; using a wind power and coal-fired power scheduling model, outputting a scheduling result based on the above-mentioned wind power curtailment output, the above-mentioned coal-fired power operating costs and the above-mentioned coal-fired power startup costs, the above-mentioned scheduling result including the above-mentioned wind power curtailment output of the above-mentioned wind turbine in the whole year, and the above-mentioned coal-fired power operating costs and the above-mentioned coal-fired power startup costs of the above-mentioned coal-fired power unit in the whole year.

[0093] The present application also provides a control system for wind power and coal power, which includes one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include methods for executing any one of the above-mentioned wind power and coal power control methods.

[0094] Obviously, those skilled in the art will appreciate that the various modules or steps of the present invention described above can be implemented using a general-purpose computing device, can be centralized on a single computing device, or can be distributed across a network of multiple computing devices. They can be implemented using program code executable by the computing device, and thus, can be stored in a storage device and executed by the computing device. In some cases, the steps shown or described herein can be performed in a different order than that shown, or can be fabricated as separate integrated circuit modules, or multiple modules or steps can be fabricated as a single integrated circuit module. Thus, the present invention is not limited to any particular combination of hardware and software.

[0095] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0096] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0097] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0098] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0099] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0100] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0101] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media (transitory media), such as modulated data signals and carrier waves.

[0102] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0103] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0104] 1) The wind power and coal power control method of the present application improves the accuracy of subsequent output scheduling results by taking into account the wind power curtailment output, the above-mentioned coal power operating costs and the above-mentioned coal power startup costs, thereby solving the problem of low accuracy of wind power and coal power scheduling results in existing solutions.

[0105] 2) The wind power and coal power control device of the present application improves the accuracy of subsequent output scheduling results by taking into account the wind power curtailment output, the above-mentioned coal power operating costs and the above-mentioned coal power startup costs, thereby solving the problem of low accuracy of wind power and coal power scheduling results in existing solutions.

[0106] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A method for controlling wind power and coal power, characterized in that: include: Obtaining the wind power curtailment output of the wind turbine generator set in each time period and the coal-fired power operation cost and coal-fired power startup cost of the coal-fired power generator set in each time period, wherein the wind power curtailment output is used to represent the power required by the wind turbine generator set to generate reactive power when operating; Using a wind power and coal power dispatch model, outputting a dispatch result based on the wind power curtailment output, the coal power operation cost, and the coal power startup cost, the dispatch result including the wind power curtailment output of the wind turbine unit throughout the year, and the coal power operation cost and the coal power startup cost of the coal turbine unit throughout the year; The wind power and coal power dispatching model is adopted to output a dispatching result according to the wind power curtailment output, the coal power operation cost, and the coal power startup cost, including: obtaining a curtailment penalty coefficient of the wind turbine and an effective power generation coefficient of the wind turbine, the curtailment penalty coefficient is used to characterize the degree of impact caused by the wind turbine generating reactive power when operating, and the effective power generation coefficient is used to characterize the degree of ability of the wind turbine to generate effective power when operating; the wind power and coal power dispatching model is adopted to output the dispatching result according to the curtailment penalty coefficient, the effective power generation coefficient of the wind turbine, the wind power curtailment output, the coal power operation cost, and the coal power startup cost; In the process of outputting a dispatch result based on the wind power curtailment output, the coal power operation cost, and the coal power startup cost by adopting the wind power and coal power dispatch model, the method further includes: use , constraining the wind power and coal power dispatch model, where: For the The coal-fired power units are The start and stop status of the time period, For the The coal-fired power units are The minimum output value for a time period, For the The coal-fired power units The maximum output value in a time period, For the The coal-fired power units are Output during a time period; In the process of outputting a dispatch result based on the wind power curtailment output, the coal power operation cost, and the coal power startup cost by adopting the wind power and coal power dispatch model, the method further includes: use , and , The wind power and coal power dispatch model is constrained, wherein: For the The coal-fired power units are Output during a time period, For the The coal-fired power units are The start and stop status of the time period, For the The coal-fired power units are The change in output rise during a time period, For the The coal-fired power units are The change in output drop during a time period; In the process of outputting a dispatch result based on the wind power curtailment output, the coal power operation cost, and the coal power startup cost by adopting the wind power and coal power dispatch model, the method further includes: use and , constraining the wind power and coal power dispatch model, where: 、 Respectively The coal-fired power units are The continuous start time and the continuous stop time of the time period, 、 Respectively The coal-fired power units are The minimum continuous on time and minimum continuous off time in the time period.

2. The method according to claim 1, characterized in that In the process of outputting a dispatch result based on the wind power curtailment output, the coal power operation cost, and the coal power startup cost by adopting the wind power and coal power dispatch model, the method further includes: use , constraining the wind power and coal power dispatch model, where: For the The coal-fired power units are Output during a time period, For the The wind turbines are The power output curtailed during the time period, is the total number of wind turbines, is the total number of coal-fired power units, For the wind turbine and the coal-fired power unit The total load brought by the time period.

3. The method according to claim 1 or 2, characterized in that In the process of outputting a dispatch result based on the wind power curtailment output, the coal power operation cost, and the coal power startup cost by adopting the wind power and coal power dispatch model, the method further includes: use 、 and , constraining the wind power and coal power dispatch model, where: 、 Respectively The coal-fired power units are Startup variables and shutdown variables of the time period, 、 Respectively The coal-fired power units are The maximum number of starts and stops in a time period, 、 are the minimum and maximum power generation of the coal-fired power unit in the whole year, is the total number of coal-fired power units, is the total number of time periods, For the The coal-fired power units are Output during a time period.

4. A control device for wind power and coal power, characterized in that: include: an acquisition unit, configured to acquire the wind power curtailment output of the wind turbine generator set in each time period and the coal-fired power operation cost and coal-fired power startup cost of the coal-fired power generator set in each time period, wherein the wind power curtailment output is used to represent the power required by the wind turbine generator set to generate reactive power when operating; a processing unit, configured to use a wind power and coal power dispatching model to output a dispatching result based on the wind power curtailment output, the coal power operation cost, and the coal power startup cost, wherein the dispatching result includes the wind power curtailment output of the wind turbine generator set throughout the year, and the coal power operation cost and the coal power startup cost of the coal turbine generator set throughout the year; The control devices of wind power and coal power are also used to perform the following steps: Obtain the curtailment penalty coefficient and effective power generation coefficient of the wind turbine. The curtailment penalty coefficient is used to characterize the extent of the impact of the wind turbine generating reactive power during operation, and the effective power generation coefficient is used to characterize the extent of the wind turbine's ability to generate effective power during operation. Adopting the wind power and coal power dispatch model, the dispatch results are output based on the curtailment penalty coefficient, the effective power generation coefficient of the wind turbine, the curtailed wind power output, the coal power operation cost and the coal power startup cost; In the process of outputting the dispatch results based on the wind power curtailment output, coal power operation cost and coal power startup cost, the wind power and coal power dispatch model are used. , constraining the wind power and coal power dispatching models, where For the coal-fired power units in The start and stop status of the time period, For the coal-fired power units in The minimum output value for a time period, For the coal-fired power units in The maximum output value in a time period, For the coal-fired power units in Output during a time period; In the process of outputting the dispatch results based on the wind power curtailment output, coal power operation cost and coal power startup cost by using the wind power and coal power dispatch model, use , and , The wind power and coal power dispatch model is constrained, wherein: For the The coal-fired power units are Output during a time period, For the The coal-fired power units are The start and stop status of the time period, For the The coal-fired power units are The change in output rise during a time period, For the The coal-fired power units are The change in output drop during a time period; In the process of outputting the dispatch result by adopting the wind power and coal power dispatch model and according to the wind power curtailment output, the coal power operation cost and the coal power startup cost, and , constraining the wind power and coal power dispatch model, where: 、 Respectively The coal-fired power units are The continuous start time and the continuous stop time of the time period, 、 Respectively The coal-fired power units are The minimum continuous on time and minimum continuous off time in the time period.

5. A computer-readable storage medium, characterized in that The computer-readable storage medium includes a stored program, wherein when the program is run, the device where the computer-readable storage medium is located is controlled to execute the wind power and coal power control method according to any one of claims 1 to 3.

6. A control system for wind power and coal power, characterized in that: include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for executing the wind power and coal power control method according to any one of claims 1 to 3.

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