Heat and power load distribution method and device for combined heat and power generation machine group, and electronic equipment

Abstract

The invention discloses a heat and power load distribution method and device for a combined heat and power generation machine group and electronic equipment, and relates to the technical field of thermal power generation. The method comprises the following steps: acquiring a thermoelectric operable region of each cogeneration unit in a cogeneration unit group in a target heat supply mode, and standard coal consumption of each cogeneration unit under different power generation loads and different heat supply loads in the thermoelectric operable region; according to the standard coal consumption under the different power generation loads and the different heat supply loads, a heat and power load energy consumption curve of each combined heat and power generation unit in the target heat supply mode is fitted; constructing a thermoelectric load distribution model based on the thermoelectric load energy consumption curve and the thermoelectric operable region of each cogeneration unit in the target heat supply mode; and according to the thermoelectric load distribution model, solving the generating capacity and the heat supply capacity of each cogeneration unit when the total coal consumption is minimum. According to the invention, the thermoelectric load distribution research cost and workload of the combined heat and power generation machine group can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of thermal power generation, and in particular to a method, device and electronic equipment for distributing thermal power loads in a cogeneration group. Background Art

[0002] With the development of urbanization in my country and the continuous advancement of cogeneration and centralized heating, large-scale thermal power generation enterprises are gradually deepening their multi-unit and multi-form heating, and the distribution of thermal power loads of each unit in the fleet has become an urgent problem to be solved.

[0003] At present, the research on thermal power load distribution of thermal power units is mainly concentrated in unit-type units. The heating form is relatively simple and can be distributed based on simple load distribution principles. It is not suitable for complex thermal power load distribution under multiple heating forms of multi-unit fleets.

[0004] At present, the performance test is mainly used for the distribution of heat and power load of cogeneration units. However, the performance test method will lead to a large workload and high investment on site. Summary of the invention

[0005] In view of this, the present application provides a method, device and electronic equipment for allocating thermal power loads of a cogeneration group, the main purpose of which is to reduce the research cost and workload of thermal power load allocation of the cogeneration group.

[0006] According to a first aspect of the present application, a method for distributing thermal power loads of a cogeneration group is provided, the method comprising:

[0007] Obtaining a heat and power operable domain of each cogeneration unit in the cogeneration group under a target heating mode, and a standard coal consumption of each cogeneration unit under different power generation loads and different heating loads in the heat and power operable domain;

[0008] According to the standard coal consumption under the different power generation loads and the different heating loads, respectively fitting the thermal power load energy consumption curve of each cogeneration unit under the target heating mode;

[0009] Building a thermal power load allocation model based on the thermal power load energy consumption curve and the thermal power operable domain of each cogeneration unit under the target heating mode;

[0010] According to the thermal power load distribution model, the power generation and heat supply of each cogeneration unit are solved when the total coal consumption is minimum.

[0011] According to a second aspect of the present application, a heat and power load distribution device for a cogeneration group is provided, the device comprising:

[0012] An acquisition unit, used to acquire a heat and power operable domain of each cogeneration unit in a cogeneration group under a target heating mode, and a standard coal consumption of each cogeneration unit under different power generation loads and different heating loads in the heat and power operable domain;

[0013] A fitting unit, for fitting the thermal power load energy consumption curve of each cogeneration unit under the target heating mode according to the standard coal consumption under the different power generation loads and the different heating loads;

[0014] A construction unit, configured to construct a thermal power load allocation model based on the thermal power load energy consumption curve and the thermal power operable domain of each cogeneration unit under the target heating mode;

[0015] The solving unit is used to solve the power generation and heating supply of each cogeneration unit when the total coal consumption is minimum according to the thermal power load distribution model.

[0016] According to a third aspect of the present application, a storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the method for distributing thermal power loads of the above-mentioned cogeneration group is implemented.

[0017] According to the fourth aspect of the present application, an electronic device is provided, comprising a storage medium, a processor, and a computer program stored on the storage medium and executable on the processor, wherein when the processor executes the program, the thermal power load distribution method of the above-mentioned cogeneration group is implemented.

[0018] Through the above-mentioned technical scheme, the present application provides a method, device and electronic equipment for distributing thermal power loads of a cogeneration group. By fitting the thermal power load energy consumption curve of each cogeneration unit under the target heating mode, and based on the thermal power load energy consumption curve of each cogeneration unit under the target heating mode and the thermal power operating domain, a thermal power load distribution model is constructed. Based on the thermal power load distribution model, the power generation and heating capacity of each cogeneration unit when the total coal consumption is minimized can be solved, thereby avoiding the use of performance tests and reducing the research cost and workload of thermal power load distribution of the cogeneration group.

[0019] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 A schematic flow chart of a method for distributing thermal power loads of a cogeneration group provided in an embodiment of the present application is shown;

[0022] Figure 2 A schematic flow chart of another method for distributing thermal power loads of a cogeneration group provided in an embodiment of the present application is shown;

[0023] Figure 3 A schematic diagram of a thermoelectric operable domain provided in an embodiment of the present application is shown;

[0024] Figure 4 A schematic diagram of standard coal consumption under different power generation loads and different heating loads provided in an embodiment of the present application is shown;

[0025] Figure 5 A schematic diagram of a thermoelectric load energy consumption curve provided in an embodiment of the present application is shown;

[0026] Figure 6 A schematic structural diagram of a heat and power load distribution device for a cogeneration group provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0027] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0028] Currently, the performance test method results in a large workload and high investment on site.

[0029] In order to solve the above problems, the embodiment of the present invention provides a method for distributing heat and power loads of a cogeneration group, such as Figure 1 As shown, the method includes:

[0030] Step 101: Obtain the heat and power operable domain of each cogeneration unit in the cogeneration group under the target heating mode, and the standard coal consumption of each cogeneration unit under different power generation loads and different heating loads in the heat and power operable domain.

[0031] Among them, the number of cogeneration units in the cogeneration group is at least two. The heat and power operable domain includes the upper limit of the heat feasible domain, the lower limit of the heat feasible domain, the upper limit of the electricity feasible domain and the lower limit of the electricity feasible domain. The target heating mode includes at least one of the following heating modes: extraction condensing heating mode, cylinder cutting heating mode, high back pressure heating mode and high back pressure extraction steam combined heating mode. It should be noted that a single unit can also operate in a pure condensing state, that is, without heating.

[0032] The embodiment of the present invention is mainly applicable to the heat and power load distribution scenario of the cogeneration group. The execution subject of the embodiment of the present invention is a device or equipment that can distribute the heat and power load of the cogeneration group.

[0033] For the embodiment of the present invention, the heat balance method can be used to simulate and calculate each cogeneration unit in the cogeneration group to obtain the heat and power operation domain of each cogeneration unit under the target heating mode, and the standard coal consumption of each cogeneration unit under different power generation loads and different heating loads in the heat and power operation domain, such as Figure 2 and Figure 3 shown.

[0034] Step 102: fitting the thermal power load energy consumption curve of each cogeneration unit under the target heating mode according to the standard coal consumption under the different power generation loads and the different heating loads.

[0035] According to the embodiment of the present invention, the thermal power load energy consumption curve F of each cogeneration unit under the target heating mode is fitted by using a binary polynomial regression method according to the standard coal consumption under different power generation loads and different heating loads. i =f(P i ,Q i ),like Figure 4 As shown. Among them, F i represents the standard coal consumption of the i-th cogeneration unit, in t / h; P i represents the power generation load of the i-th cogeneration unit, in MW; Q i Represents the heating load of the ith CHP unit, in MW.

[0036] Step 103: construct a thermal power load distribution model based on the thermal power load energy consumption curve and the thermal power operable domain of each cogeneration unit under the target heating mode.

[0037] For the embodiment of the present invention, in order to construct a thermal power load distribution model, step 103 specifically includes: accumulating the fitting formulas corresponding to the thermal power load energy consumption curves of each cogeneration unit to obtain an optimization function; and constructing a thermal power load distribution model based on the optimization function and the thermal power operating domain.

[0038] When constructing a thermal power load distribution model based on the optimization function and the thermal power operable domain, the total power generation load and the total heating load of the cogeneration group are obtained; based on the total power generation load and the total heating load, equality constraints are set; based on the thermal power operable domain of each cogeneration unit under the target heating mode, inequality constraints are set; and based on the equality constraints, the inequality constraints and the optimization function, the thermal power load distribution model is constructed.

[0039] Specifically, according to the total power generation load and total heating load of the cogeneration group, a total power generation load and a total heating load of the group are set respectively. Then, according to the total power generation load and the total heating load, the equality constraint conditions are set. The specific formula is as follows:

[0040]

[0041] Among them, P i represents the power generation load of the i-th cogeneration unit, in MW; Q i represents the heating load of the ith cogeneration unit, in MW; P is the total power generation load; Q is the total heating load.

[0042] At the same time, according to the heat and power operation domain of each cogeneration unit under the target heating mode, the inequality constraint conditions are set. The specific formula is as follows:

[0043]

[0044] in, and are the upper limit and lower limit of the electrical feasible region respectively, and are the upper and lower limits of the thermally feasible region, respectively.

[0045] Then the fitting formula F corresponding to the thermal power load energy consumption curve of each cogeneration unit is i =f(P i ,Q i ) are accumulated to obtain the optimization function. The specific formula is as follows:

[0046]

[0047] Among them, F is the total coal consumption, F i Represents the standard coal consumption of the i-th cogeneration unit.

[0048] Furthermore, according to the above-mentioned equality constraints, inequality constraints and optimization function, the thermal power load distribution model, namely the cuckoo solution model, is constructed.

[0049] It should be noted that when obtaining the total power generation load and total heating load of the cogeneration group, the total power generation load and total heating load of the cogeneration group can be determined based on the total power generation capacity and total heating capacity of the cogeneration group.

[0050] Step 104: According to the thermal power load distribution model, solve the power generation and heating supply of each cogeneration unit when the total coal consumption is minimum.

[0051] For the embodiment of the present invention, when solving the power generation and heating supply of each cogeneration unit, step 104 specifically includes: according to the equation constraint and the inequality constraint, taking the minimum total coal consumption as the optimization goal, solving the optimization function to obtain the power generation and heating supply of each cogeneration unit.

[0052] A method for distributing thermal power loads of a cogeneration group provided in an embodiment of the present invention fits the thermal power load energy consumption curve of each cogeneration unit under a target heating mode, and constructs a thermal power load distribution model based on the thermal power load energy consumption curve of each cogeneration unit under the target heating mode and the thermal power operating domain. Based on the thermal power load distribution model, the power generation and heating capacity of each cogeneration unit when the total coal consumption is minimized can be solved, thereby avoiding the use of performance tests and reducing the research cost and workload of thermal power load distribution of the cogeneration group.

[0053] Further, as a refinement and extension of the specific implementation of the above embodiment, in order to fully illustrate the implementation of this embodiment, this embodiment also provides another method for distributing heat and power loads of a cogeneration group, such as Figure 5 As shown, the method includes:

[0054] Step 201: Obtain the heat and power operable domain of each cogeneration unit in the cogeneration group under the target heating mode, and the standard coal consumption of each cogeneration unit under different power generation loads and different heating loads in the heat and power operable domain.

[0055] For example, the heat balance method is used to simulate and calculate Unit 1 and Unit 2 in the cogeneration group, and the thermal power operating domain of Unit 1 and Unit 2 under the cylinder cutting heating mode is obtained, as well as the standard coal consumption of Unit 1 and Unit 2 under different power generation loads and different heating loads in the thermal power operating domain.

[0056] Step 202: According to the standard coal consumption under the different power generation loads and the different heating loads, a binary polynomial regression method is used to fit the thermal power load energy consumption curve of each cogeneration unit under the target heating mode.

[0057] For example, according to the standard coal consumption of Unit 1 under different power generation loads and different heating loads in its thermal power operation domain, the binary polynomial regression method is used to fit the thermal power load energy consumption curve of Unit 1 under the cylinder cutting heating mode. Similarly, according to the standard coal consumption of Unit 2 under different power generation loads and different heating loads in its thermal power operation domain, the binary polynomial regression method is used to fit the thermal power load energy consumption curve of Unit 2 under the cylinder cutting heating mode.

[0058] Step 203: construct a thermal power load distribution model based on the thermal power load energy consumption curve and the thermal power operable domain of each cogeneration unit under the target heating mode.

[0059] For example, according to the total power generation load and total heating load of Unit 1 and Unit 2, set the equality constraint condition, and according to the thermal power operation domain of Unit 1 and Unit 2 in the cylinder cutting heating mode, set the inequality constraint condition. Then, the fitting formula corresponding to the thermal power load energy consumption curve of Unit 1 and Unit 2 is accumulated to obtain the optimization function. Then, according to the optimization function, equality constraint condition and inequality constraint condition, the thermal power load distribution model is constructed.

[0060] Step 204: According to the thermal power load distribution model, solve the power generation and heating supply of each cogeneration unit when the total coal consumption is minimum.

[0061] For example, when the total power generation load is 450MW and the total heating load is 180MW, the power generation of Unit 1 is 217.3MW and the heating load is 82.7MW when the total coal consumption is the minimum, and the power generation of Unit 2 is 232.6MW and the heating load is 97.4MW.

[0062] Step 205: guiding the operation of the cogeneration group according to the solved power generation and heating supply of each cogeneration unit.

[0063] For the embodiment of the present invention, different total power generation load and total heating load values ​​can be exhaustively enumerated within the total power generation capacity and total heating capacity of the cogeneration group to determine the power generation and heating capacity of each cogeneration unit under each total power generation load and total heating load in the cogeneration group, thereby guiding the actual operation of the cogeneration group.

[0064] Another method for distributing thermal power loads of a cogeneration group provided in an embodiment of the present invention is to fit the thermal power load energy consumption curve of each cogeneration group under the target heating mode, and to construct a thermal power load distribution model based on the thermal power load energy consumption curve and the thermal power operable domain of each cogeneration group under the target heating mode. Based on the thermal power load distribution model, the power generation and heating capacity of each cogeneration group when the total coal consumption is minimized can be solved. It can be seen that the simulation calculation method of the embodiment of the present invention can obtain considerable energy-saving benefits with less investment by quantitatively studying the energy consumption level of the heating unit and then calculating the thermal power load distribution by optimizing the method. Compared with the performance test method, the embodiment of the present invention can reduce the cost and workload of thermal power load distribution research of the cogeneration group. Compared with the intelligent algorithm calculation method, the embodiment of the present invention can reduce the amount of calculation and ensure the accuracy of the thermal power load distribution results.

[0065] Further, as Figure 1 and Figure 5 The specific implementation of the method shown in the figure, the embodiment of the present invention provides a heat and power load distribution device for a cogeneration group, such as Figure 6 As shown, the device includes: an acquisition unit 31, a fitting unit 32, a construction unit 33 and a solution unit 34.

[0066] The acquisition unit 31 can be used to obtain the heat and power operable domain of each cogeneration unit in the cogeneration group under the target heating mode, and the standard coal consumption of each cogeneration unit under different power generation loads and different heating loads in the heat and power operable domain.

[0067] The fitting unit 32 may be used to fit the thermal power load energy consumption curve of each cogeneration unit under the target heating mode according to the standard coal consumption under the different power generation loads and the different heating loads.

[0068] The construction unit 33 may be used to construct a thermal power load allocation model based on the thermal power load energy consumption curve and the thermal power operable domain of each cogeneration unit in the target heating mode.

[0069] The solving unit 34 can be used to solve the power generation and heating supply of each cogeneration unit when the total coal consumption is minimum according to the thermal power load allocation model.

[0070] In some embodiments, the fitting unit 32 can be specifically used to fit the thermal power load energy consumption curve of each cogeneration unit under the target heating mode by using a binary polynomial regression method according to the standard coal consumption under the different power generation loads and the different heating loads.

[0071] In some embodiments, the device further comprises: a guidance unit.

[0072] The guiding unit may be used to guide the operation of the cogeneration group according to the solved power generation and heat supply of each cogeneration unit.

[0073] In some embodiments, the construction unit 33 includes: an accumulation module and a construction module.

[0074] The accumulation module can be used to accumulate the fitting formulas corresponding to the thermal power load energy consumption curves of each cogeneration unit to obtain an optimization function.

[0075] The construction module can be used to construct a thermal power load distribution model based on the optimization function and the thermal power operable domain.

[0076] In some embodiments, the construction module includes: an acquisition submodule, a setting submodule and a construction submodule.

[0077] The acquisition submodule may be used to acquire the total power generation load and the total heating load of the cogeneration group.

[0078] The setting submodule can be used to set equality constraints based on the total power generation load and the total heating load.

[0079] The setting submodule may also be used to set inequality constraints based on the heat and power operable domain of each cogeneration unit under the target heating mode.

[0080] The construction submodule can be used to construct the thermal power load distribution model according to the equality constraint condition, the inequality constraint condition and the optimization function.

[0081] In some embodiments, the acquisition submodule may be specifically configured to determine the total power generation load and the total heating load of the cogeneration group based on the total power generation capacity and the total heating capacity of the cogeneration group.

[0082] In some embodiments, the solving unit 34 can be specifically used to solve the optimization function according to the equality constraint and the inequality constraint, with the minimum total coal consumption as the optimization goal, to obtain the power generation and heating supply of each cogeneration unit.

[0083] In some embodiments, the target heating mode includes at least one of an extraction-condensing heating mode, a cylinder-cutting heating mode, a high back-pressure heating mode, and a high back-pressure extraction-steam combined heating mode.

[0084] It should be noted that for other corresponding descriptions of the functional units involved in the heat and power load distribution device of a cogeneration group provided in an embodiment of the present invention, reference can be made to Figure 1 and Figure 5 The corresponding description in will not be repeated here.

[0085] Based on the above Figure 1 and Figure 5 The method shown in the embodiment also provides a storage medium on which a computer program is stored. When the program is executed by a processor, the above-mentioned Figure 1 and Figure 5 The heat and power load allocation method of the cogeneration group is shown.

[0086] Based on this understanding, the technical solution of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, USB flash drive, mobile hard disk, etc.), including a number of instructions for enabling an electronic device (which can be a personal computer, server, or network device, etc.) to execute the methods of various implementation scenarios of the present application.

[0087] Based on the above Figure 1 and Figure 5 The method shown, and Figure 6 In order to achieve the above-mentioned purpose, the embodiment of the present application also provides an electronic device, which can be a personal computer, a tablet computer, a server, or other network equipment, etc. The device includes a storage medium and a processor; the storage medium is used to store a computer program; the processor is used to execute the computer program to achieve the above-mentioned Figure 1 and Figure 5 The heat and power load allocation method of the cogeneration group is shown.

[0088] Optionally, the above-mentioned physical device may also include a user interface, a network interface, a camera, a radio frequency (RF) circuit, a sensor, an audio circuit, a WI-FI module, etc. The user interface may include a display, an input unit such as a keyboard, etc., and the optional user interface may also include a USB interface, a card reader interface, etc. The network interface may optionally include a standard wired interface, a wireless interface (such as a WI-FI interface), etc.

[0089] Those skilled in the art will appreciate that the above-mentioned physical device structure provided in this embodiment does not constitute a limitation on the physical device, and may include more or fewer components, or a combination of certain components, or different arrangements of components.

[0090] The storage medium may also include an operating system and a network communication module. The operating system is a program that manages the hardware and software resources of the above-mentioned physical device, and supports the operation of the information processing program and other software and / or programs. The network communication module is used to realize the communication between the components inside the storage medium, and the communication with other hardware and software in the information processing physical device.

[0091] Through the description of the above implementation methods, those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general hardware platform, or by hardware.

[0092] The embodiment of the present invention fits the thermal power load energy consumption curve of each cogeneration unit under the target heating mode, and constructs a thermal power load distribution model based on the thermal power load energy consumption curve of each cogeneration unit under the target heating mode and the thermal power operating domain. Based on the thermal power load distribution model, it can solve the power generation and heating capacity of each cogeneration unit when the total coal consumption is minimized. It can be seen that the simulation calculation method of the embodiment of the present invention can obtain considerable energy-saving benefits with less investment by quantitatively studying the energy consumption level of the heating unit and then calculating the thermal power load distribution by optimizing the method. Compared with the performance test method, the embodiment of the present invention can reduce the cost and workload of thermal power load distribution research of the cogeneration group. Compared with the intelligent algorithm calculation method, the embodiment of the present invention can reduce the amount of calculation and ensure the accuracy of the thermal power load distribution results.

[0093] Those skilled in the art will appreciate that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily necessary for implementing the present application. Those skilled in the art will appreciate that the modules in the devices in the implementation scenario can be distributed in the devices of the implementation scenario according to the description of the implementation scenario, or can be changed accordingly and located in one or more devices different from the present implementation scenario. The modules of the above-mentioned implementation scenario can be combined into one module, or can be further split into multiple submodules.

[0094] The above serial numbers of this application are only for description and do not represent the advantages and disadvantages of the implementation scenarios. The above disclosure is only a few specific implementation scenarios of this application, but this application is not limited to them, and any changes that can be thought of by technicians in this field should fall within the scope of protection of this application.

Claims

1. A method for distributing heat and power loads of a cogeneration group, characterized in that: include: Obtaining a heat and power operable domain of each cogeneration unit in the cogeneration group under a target heating mode, and a standard coal consumption of each cogeneration unit under different power generation loads and different heating loads in the heat and power operable domain; According to the standard coal consumption under the different power generation loads and the different heating loads, respectively fitting the thermal power load energy consumption curve of each cogeneration unit under the target heating mode; Building a thermal power load allocation model based on the thermal power load energy consumption curve and the thermal power operable domain of each cogeneration unit under the target heating mode; According to the thermal power load distribution model, the power generation and heat supply of each cogeneration unit are solved when the total coal consumption is minimum.

2. The method according to claim 1, characterized in that According to the standard coal consumption under the different power generation loads and the different heating loads, respectively fitting the thermal power load energy consumption curve of each cogeneration unit under the target heating mode includes: According to the standard coal consumption under the different power generation loads and the different heating loads, a binary polynomial regression method is used to fit the thermal power load energy consumption curve of each cogeneration unit under the target heating mode; and / or The method further comprises: The operation of the cogeneration group is guided according to the solved power generation and heat supply of each cogeneration unit.

3. The method according to claim 1, characterized in that Based on the thermal power load energy consumption curve and thermal power operable domain of each cogeneration unit under the target heating mode, a thermal power load allocation model is constructed, including: Accumulating the fitting formulas corresponding to the thermal and electric load energy consumption curves of the cogeneration units to obtain an optimization function; Based on the optimization function and the thermoelectric operable domain, a thermoelectric load distribution model is constructed.

4. The method according to claim 3, characterized in that Based on the optimization function and the thermoelectric operable domain, a thermoelectric load distribution model is constructed, including: Obtaining the total power generation load and the total heating load of the cogeneration group; Based on the total power generation load and the total heating load, setting an equality constraint condition; Based on the heat and power operable domain of each cogeneration unit under the target heating mode, setting inequality constraints; The thermal power load distribution model is constructed according to the equality constraint condition, the inequality constraint condition and the optimization function.

5. The method according to claim 4, characterized in that Obtaining the total power generation load and total heating load of the cogeneration group, including: Based on the total power generation capacity and the total heating capacity of the cogeneration group, the total power generation load and the total heating load of the cogeneration group are determined.

6. The method according to claim 4, characterized in that According to the thermal power load distribution model, solving the power generation and heating supply of each cogeneration unit when the total coal consumption is minimum includes: According to the equality constraint and the inequality constraint, taking the minimum total coal consumption as the optimization goal, the optimization function is solved to obtain the power generation and heating supply of each cogeneration unit.

7. The method according to any one of claims 1 to 6, characterized in that: The target heating mode includes at least one of an extraction-condensing heating mode, a cylinder cutting heating mode, a high back pressure heating mode, and a high back pressure extraction-steam combined heating mode.

8. A heat and power load distribution device for a cogeneration group, characterized in that: include: An acquisition unit, used to acquire a heat and power operable domain of each cogeneration unit in a cogeneration group under a target heating mode, and a standard coal consumption of each cogeneration unit under different power generation loads and different heating loads in the heat and power operable domain; A fitting unit, for fitting the thermal power load energy consumption curve of each cogeneration unit under the target heating mode according to the standard coal consumption under the different power generation loads and the different heating loads; A construction unit, configured to construct a thermal power load allocation model based on the thermal power load energy consumption curve and the thermal power operable domain of each cogeneration unit under the target heating mode; The solving unit is used to solve the power generation and heating supply of each cogeneration unit when the total coal consumption is minimum according to the thermal power load distribution model.

9. A storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

10. An electronic device comprising a storage medium, a processor, and a computer program stored in the storage medium and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 7 is implemented.

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