Load control method and device, electronic equipment, storage medium and product

Abstract

The invention provides a load control method and apparatus, an electronic device, a storage medium and a product. The method comprises the steps of obtaining an internet load of a target power plant; sending a first control signal to a main steam pressure controller and sending a second control signal to a load controller in response to the fact that the internet access load is smaller than a first load threshold value; the first control signal is used for enabling the main steam pressure controller to control the pipeline pressure of a steam turbine of the target power plant to be in a first pressure range, and the second control signal is used for enabling the load controller to set the internet load change rate of the target power plant to be a first rate.

Description

Technical Field

[0001] The present disclosure relates to the field of load control of generator sets, and in particular to a load control method, device, electronic equipment, storage medium and product. Background Art

[0002] Since the operation of the electricity spot market, the price difference between peak and valley has gradually widened. The survey found that when the output of new energy is large, the spot clearing price on the power generation side can be as low as 0 yuan / MWH. At this stage, the greater the power generation of the power plant, the higher its cost and the smaller its profit.

[0003] The electricity charges of power generation enterprises conform to the following mathematical expression:

[0004]

[0005] Among them, R 发电企业，j is the electricity cost of power generation enterprise j, is the grid-connected load of power generation company j at time t, is the node electricity price at time t, is the contracted electricity of power generation company j at time t, is the contract price of power generation company j at time t, is the regional settlement reference point of power generation enterprise j at time t, and its value is equal to

[0006] For example, a power plant has a medium- and long-term contract of 120MW at a certain time, a contract price of 380 yuan / MWH, an on-grid load of 105MW or 95MW, a node electricity price of 0 yuan / MWH, and a power generation cost of 300 yuan / MWH.

[0007] From the above mathematical expression, we can know that when the grid-connected load of power generation enterprise j at time t is 105MW, its electricity fee is equal to 105*0+120*(380-0)=45600 yuan;

[0008] When the grid-connected load of power generation enterprise j at time t is 95MW, its electricity fee is equal to 95*0+120*(380-0)=45600 yuan;

[0009] Therefore, when the contracted electricity volume and electricity charges of the power generation enterprise are the same, when the grid-connected load of the power generation enterprise is reduced, the cost can be saved by (105-95)*300 yuan / MWH=3000 yuan.

[0010] Therefore, reasonable control of the grid load of power generation enterprises can effectively save the costs of power generation enterprises and increase their profits. Summary of the invention

[0011] The present disclosure provides a load control method, device, electronic device, storage medium and product to solve the problems in the related art.

[0012] A first aspect of the present disclosure provides a load control method, the method comprising:

[0013] Obtain the grid load of the target power plant;

[0014] In response to the online load being less than a first load threshold, a first control signal is sent to a main steam pressure controller, and a second control signal is sent to a load controller; the first control signal is used to enable the main steam pressure controller to control the pipeline pressure of the steam turbine of the target power plant to be within a first pressure range, and the second control signal is used to enable the load controller to set the online load change rate of the target power plant to a first rate.

[0015] In one embodiment, the first pressure range is between 9 MPa and 9.5 MPa, and the first rate is 1 megawatt per minute.

[0016] In one embodiment, the load control method provided in the first aspect of the present disclosure further includes:

[0017] Obtaining an average furnace flue gas temperature of a boiler of the target power plant;

[0018] In response to the furnace average smoke temperature being lower than a preset temperature threshold, the load controller controls the online load to be a second load threshold.

[0019] In one embodiment, the load control method provided in the first aspect of the present disclosure further includes:

[0020] In response to receiving a first prompt from the staff of the target power plant, the online load is controlled to a third load threshold by the load controller; wherein the first prompt is used to indicate that the fuel combustion in the boiler of the target power plant is unstable, and the third load threshold is less than the second load threshold.

[0021] In one embodiment, after obtaining the grid-connected load of the target power plant, the load control method provided in the first aspect of the present disclosure further includes:

[0022] In response to the online load being less than a fourth load threshold, a third control signal is sent to a furnace pressure controller, and a fourth control signal is sent to a main steam flow controller; the third control signal is used to enable the furnace pressure controller to control the furnace pressure to be within a second pressure range, the second pressure range being between negative thirty megapascals and negative fifty megapascals; the fourth control signal is used to enable the main steam flow controller to control the pipeline flow of the steam turbine of the target power plant to be within a first flow range, the first flow range being no greater than three hundred and twenty tons per hour;

[0023] The fourth load threshold is less than the first load threshold.

[0024] The load control method proposed in the first aspect of the present disclosure further includes:

[0025] In response to the variation range of the upper and lower limits of the on-grid load being greater than the first variation range, a fifth control signal is sent to the load controller; the fifth control signal is used to enable the load controller to control the upper and lower limits of the on-grid load of the target power plant within the first variation range;

[0026] In response to the upper and lower limits of the online load being within the first variation range, a sixth control signal is sent to the load controller; the sixth control signal is used to enable the load controller to control the online load of the target power plant to the fourth load threshold.

[0027] A second aspect of the present disclosure provides a load control device, the device comprising:

[0028] A first acquisition unit, used to acquire the grid-connected load of a target power plant;

[0029] The first sending unit is used to send a first control signal to a main steam pressure controller and a second control signal to a load controller in response to the online load being less than a first load threshold; the first control signal is used to enable the main steam pressure controller to control the pipeline pressure of the turbine of the target power plant to be within a first pressure range, and the second control signal is used to enable the load controller to set the online load change rate of the target power plant to a first rate.

[0030] A third aspect of the present disclosure provides an electronic device, including:

[0031] At least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method described in the embodiment of the first aspect of the present disclosure.

[0032] The fourth aspect embodiment of the present disclosure proposes a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a computer to execute the method described in the first aspect embodiment of the present disclosure.

[0033] A fifth aspect embodiment of the present disclosure provides a computer program product, including a computer program, which implements the method described in the first aspect embodiment of the present disclosure when executed by a processor.

[0034] In summary, the present disclosure proposes a load control method, device, electronic device, storage medium and product, the method comprising: obtaining the online load of the target power plant; in response to the online load being less than a first load threshold, sending a first control signal to the main steam pressure controller, and sending a second control signal to the load controller; the first control signal is used to enable the main steam pressure controller to control the pipeline pressure of the turbine of the target power plant to be within a first pressure range, and the second control signal is used to enable the load controller to set the online load change rate of the target power plant to a first rate.

[0035] The solution provided by the present disclosure is that when the online load of the target power plant is less than a first load threshold, the first control signal can be used to enable the main steam pressure controller to control the pipeline pressure of the turbine of the target power plant to a first pressure range, and the second control signal can be used to enable the load controller to set the online load change rate of the target power plant to a first rate, thereby stabilizing the online load of the target power plant and improving the economic benefits of the target power plant.

[0036] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description are used to explain the principles of the present disclosure, and do not constitute improper limitations on the present disclosure.

[0038] Figure 1 A flow chart of a load control method provided by an embodiment of the present disclosure;

[0039] Figure 2 A flow chart of another load control method provided by an embodiment of the present disclosure;

[0040] Figure 3 A schematic diagram of the structure of a load control device provided in an embodiment of the present disclosure;

[0041] Figure 4 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0042] Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0043] Since the operation of the electricity spot market, the price difference between peak and valley has gradually widened. The survey found that when the output of new energy is large, the spot clearing price on the power generation side can be as low as 0 yuan / MWH. At this stage, the greater the power generation of the power plant, the smaller the profit.

[0044] The electricity charges of power generation enterprises conform to the following mathematical expression:

[0045]

[0046] Among them, R 发电企业，j is the electricity cost of power generation enterprise j, is the grid-connected load of power generation company j at time t, is the node electricity price at time t, is the contracted electricity of power generation company j at time t, is the contract price of power generation company j at time t, is the regional settlement reference point of power generation enterprise j at time t, and its value is equal to

[0047] For example, a power plant has a medium- and long-term contract of 120MW at a certain time, a contract price of 380 yuan / MWH, an on-grid load of 105MW or 95MW, a node electricity price of 0 yuan / MWH, and a power generation cost of 300 yuan / MWH.

[0048] From the above mathematical expression, we can know that when the grid-connected load of power generation enterprise j at time t is 105MW, its electricity fee is equal to 105*0+120*(380-0)=45600 yuan;

[0049] When the grid-connected load of power generation enterprise j at time t is 95MW, its electricity fee is equal to 95*0+120*(380-0)=45600 yuan;

[0050] Therefore, when the contracted electricity volume and electricity charges of the power generation enterprise are the same, when the grid-connected electricity requirements of the power generation enterprise are reduced, the cost can be saved by (105-95)*300 yuan / MWH=3000 yuan.

[0051] Therefore, reasonable control of the grid load of power generation enterprises can effectively save the costs of power generation enterprises and increase their profits.

[0052] In order to address the defects in the related art, the solution provided in the present disclosure can utilize a first control signal to enable the main steam pressure controller to control the pipeline pressure of the turbine of the target power plant to a first pressure range when the grid-connected load of the target power plant is less than a first load threshold, and utilize a second control signal to enable the load controller to set the grid-connected load change rate of the target power plant to a first rate, thereby stabilizing the grid-connected load of the target power plant and improving the economic benefits of the target power plant.

[0053] The present disclosure is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0054] like Figure 1 As shown, Figure 1 A flow chart of a load control method provided in an embodiment of the present disclosure. The load control method provided in an embodiment of the present disclosure comprises the following steps:

[0055] Step 101, obtaining the grid load of the target power plant;

[0056] In one embodiment, the grid-connected load of the target power plant refers to the power supply load borne by the target power plant to the power grid, that is, the load transmitted to the power grid by the target power plant.

[0057] In one embodiment, the on-grid load of the target power plant can be acquired by the main controller of the target power plant, wherein the main controller of the target power plant is the executor of the load control method provided in the embodiment of the present disclosure, which can control the equipment operation of the target power plant according to the equipment operating parameters of the target power plant, or control the equipment operation through the controller of the equipment, such as controlling the main steam pressure controller, the main steam flow controller, the load controller, etc.

[0058] Step 102, in response to the online load being less than a first load threshold, sending a first control signal to a main steam pressure controller and sending a second control signal to a load controller.

[0059] In one embodiment, the first control signal is used to enable the main steam pressure controller to control the pipeline pressure of the steam turbine of the target power plant to be within a first pressure range.

[0060] In one embodiment, the second control signal is used to cause the load controller to set the online load change rate of the target power plant to a first rate.

[0061] In one embodiment, the first load threshold is one hundred and five megawatts.

[0062] In one embodiment, the first pressure range is between 9 MPa and 9.5 MPa, and the first rate is 1 megawatt per minute.

[0063] In summary, the load control method proposed in the present disclosure includes: obtaining the online load of the target power plant; in response to the online load being less than a first load threshold, sending a first control signal to the main steam pressure controller, and sending a second control signal to the load controller; the first control signal is used to enable the main steam pressure controller to control the pipeline pressure of the turbine of the target power plant to be within a first pressure range, and the second control signal is used to enable the load controller to set the online load change rate of the target power plant to a first rate.

[0064] The solution provided by the present disclosure is that when the online load of the target power plant is less than a first load threshold, the first control signal can be used to enable the main steam pressure controller to control the pipeline pressure of the turbine of the target power plant to a first pressure range, and the second control signal can be used to enable the load controller to set the online load change rate of the target power plant to a first rate, thereby stabilizing the online load of the target power plant and improving the economic benefits of the target power plant.

[0065] In one embodiment, if Figure 2 As shown, the load control method proposed in the embodiment of the present disclosure also includes:

[0066] Step 201, obtaining the average flue gas temperature of the furnace of the boiler of the target power plant;

[0067] In one embodiment, the average smoke temperature in the furnace refers to the average smoke temperature at the furnace outlet.

[0068] In one embodiment, the average furnace flue gas temperature is used to indicate whether the fuel in the boiler is fully burned. When the average furnace flue gas temperature is lower than a preset temperature threshold, it indicates that the fuel in the boiler is not fully burned, which will affect the grid load of the target power plant.

[0069] Step 202, in response to the furnace average smoke temperature being lower than a preset temperature threshold, controlling the online load to a second load threshold through the load controller.

[0070] In one embodiment, the preset temperature threshold is 560 degrees, and the average smoke temperature in the furnace can also be set to other different temperatures according to actual needs, which is not limited in the present disclosure.

[0071] In one embodiment, the second load threshold is one hundred and twenty megawatts.

[0072] In one embodiment, increasing the grid load of the target power plant helps the main controller to adjust parameters of other equipment to improve the degree of fuel combustion in the boiler.

[0073] In one embodiment, step 201 and step 202 may be performed before step 101 or after step 102, which is not limited in the present disclosure.

[0074] In one embodiment, the load control method provided in the embodiment of the present disclosure further includes:

[0075] In response to receiving a first prompt from the staff of the target power plant, the online load is controlled to a third load threshold by the load controller; wherein the first prompt is used to indicate that the fuel combustion in the boiler of the target power plant is unstable, and the third load threshold is less than the second load threshold.

[0076] In one embodiment, the first prompt may be issued by a staff member through a human-computer interaction device of the main controller. The human-computer interaction device may be a keyboard, a voice interaction device, a touch screen, etc. of the main controller.

[0077] In one embodiment, when the fuel combustion in the boiler is unstable, the power generation of the target power plant may be reduced, so the grid load of the target power plant may be appropriately reduced to a third load threshold, wherein the third load threshold is 110 megawatts.

[0078] In one embodiment, after step 101, the load control method provided in the embodiment of the present disclosure further includes:

[0079] In response to the online load being less than a fourth load threshold, a third control signal is sent to the furnace pressure controller, and a fourth control signal is sent to the main steam flow controller.

[0080] In one embodiment, the third control signal is used to enable the furnace pressure controller to control the furnace pressure to be within a second pressure range, and the second pressure range is between negative thirty MPa and negative fifty MPa.

[0081] In one embodiment, the fourth control signal is used to enable the main steam flow controller to control the pipeline flow of the steam turbine of the target power plant to be within a first flow range, and the first flow range is not greater than three hundred and twenty tons per hour;

[0082] In one embodiment, the fourth load threshold is less than the first load threshold.

[0083] In one embodiment, the load control method provided in the embodiment of the present disclosure further includes:

[0084] In response to the variation range of the upper limit and the lower limit of the online load being greater than the first variation range, a fifth control signal is sent to the load controller.

[0085] In response to the upper limit and the lower limit of the online load being within a first variation range, a sixth control signal is sent to the load controller.

[0086] In one embodiment, the fifth control signal is used to enable the load controller to control the upper limit and the lower limit of the grid-connected load of the target power plant within a first variation range;

[0087] In one embodiment, the second rate is used to indicate that the upper and lower limits of the grid-connected load of the target power plant are greater than three megawatts.

[0088] In one embodiment, the sixth control signal is used to enable the load controller to control the grid-connected load of the target power plant to the fourth load threshold.

[0089] In order to implement the load control method provided by the embodiment of the present disclosure, the embodiment of the present disclosure also provides a load control device, such as Figure 3 shown. Figure 3 This is a schematic diagram of the structure of a load control device provided in an embodiment of the present disclosure. The load control device 300 includes:

[0090] A first acquisition unit 301 is used to acquire the grid-connected load of a target power plant;

[0091] The first sending unit 302 is used to send a first control signal to the main steam pressure controller and a second control signal to the load controller in response to the online load being less than a first load threshold; the first control signal is used to enable the main steam pressure controller to control the pipeline pressure of the turbine of the target power plant to be within a first pressure range, and the second control signal is used to enable the load controller to set the online load change rate of the target power plant to a first rate.

[0092] In one embodiment, the first pressure range is between 9 MPa and 9.5 MPa, and the first rate is 1 megawatt per minute.

[0093] In one embodiment, the load control device 300 further includes a first control module, and the first control module is used to:

[0094] Obtaining an average furnace flue gas temperature of a boiler of the target power plant;

[0095] In response to the furnace average smoke temperature being lower than a preset temperature threshold, the load controller controls the online load to be a second load threshold.

[0096] In one embodiment, the load control device 300 further includes a second control module, and the second control module is used to:

[0097] In response to receiving a first prompt from the staff of the target power plant, the online load is controlled to a third load threshold by the load controller; wherein the first prompt is used to indicate that the fuel combustion in the boiler of the target power plant is unstable, and the third load threshold is less than the second load threshold.

[0098] In one embodiment, the load control device 300 further includes a second sending module, and the second sending module is used to:

[0099] In response to the online load being less than a fourth load threshold, a third control signal is sent to a furnace pressure controller, and a fourth control signal is sent to a main steam flow controller; the third control signal is used to enable the furnace pressure controller to control the furnace pressure to be within a second pressure range, the second pressure range being between negative thirty megapascals and negative fifty megapascals; the fourth control signal is used to enable the main steam flow controller to control the pipeline flow of the steam turbine of the target power plant to be within a first flow range, the first flow range being no greater than three hundred and twenty tons per hour;

[0100] The fourth load threshold is less than the first load threshold.

[0101] In one embodiment, the load control device 300 further includes a third sending module, and the third sending module is used to:

[0102] In response to the variation range of the upper and lower limits of the on-grid load being greater than the first variation range, a fifth control signal is sent to the load controller; the fifth control signal is used to enable the load controller to control the upper and lower limits of the on-grid load of the target power plant within the first variation range;

[0103] In response to the upper and lower limits of the online load being within the first variation range, a sixth control signal is sent to the load controller; the sixth control signal is used to enable the load controller to control the online load of the target power plant to the fourth load threshold.

[0104] It should be noted that: when the load control device provided in the above embodiment performs load control, only the division of the above program modules is used as an example. In actual applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the load control device is divided into different program modules to complete all or part of the processing described above. In addition, the load control device provided in the above embodiment and the load control method embodiment provided in the embodiment of the present disclosure belong to the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0105] The present disclosure also provides an electronic device, such as Figure 4 As shown, Figure 4 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present disclosure is shown in FIG. Figure 4As shown, the electronic device 400 includes at least one processor 402; and a memory 401 communicatively connected to the at least one processor 402; wherein the memory 401 stores instructions executable by the at least one processor 402, and the instructions are executed by the at least one processor 402 to implement the steps of the load control method described in the embodiment of the present disclosure.

[0106] Optionally, the electronic device may specifically be a load control device in an embodiment of the present application, and the electronic device may implement the corresponding processes implemented by the load control device in each method in the embodiment of the present application, which will not be described in detail here for the sake of brevity.

[0107] It is understood that the electronic device also includes a communication interface 403. The various components in the electronic device are coupled together through a bus system 404. It is understood that the bus system 404 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 404 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 4 Various buses are labeled as bus system 404 .

[0108] It can be understood that the memory 401 can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), and direct RAM bus random access memory (DRRAM, Direct Rambus Random Access Memory).The memory 401 described in the embodiment of the present invention is intended to include but is not limited to these and any other suitable types of memories.

[0109] The method disclosed in the above embodiment of the present disclosure can be applied to the processor 402, or implemented by the processor 402. The processor 402 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 402 or the instruction in the form of software. The above processor 402 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The processor 402 can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiment of the present invention, it can be directly embodied as a hardware decoding processor to execute, or it can be executed by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium, which is located in the memory 401, and the processor 402 reads the information in the memory 401 and completes the steps of the above method in combination with its hardware.

[0110] In an exemplary embodiment, the electronic device may be implemented by one or more application specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), FPGAs, general purpose processors, controllers, MCUs, microprocessors, or other electronic components to execute the aforementioned method.

[0111] The embodiment of the present disclosure also provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable the computer to implement the steps of the load control method described in the embodiment of the present disclosure when executed.

[0112] The embodiment of the present disclosure provides a computer program product, including a computer program, which implements the steps of the load control method described in the embodiment of the present disclosure when executed by a processor.

[0113] Optionally, the computer-readable storage medium can be applied to the load control device in the embodiments of the present application, and the computer instructions enable the computer to execute the corresponding processes implemented by the load control device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0114] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0115] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment.

[0116] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0117] A person of ordinary skill in the art can understand that: all or part of the steps of implementing the above-mentioned method embodiment can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium, which, when executed, executes the steps of the above-mentioned method embodiment; and the aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, disks or optical disks.

[0118] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

[0119] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A load control method, characterized in that: include: Obtain the grid load of the target power plant; In response to the online load being less than a first load threshold, sending a first control signal to a main steam pressure controller and sending a second control signal to a load controller; The first control signal is used to enable the main steam pressure controller to control the pipeline pressure of the steam turbine of the target power plant to be within a first pressure range, and the second control signal is used to enable the load controller to set the online load change rate of the target power plant to a first rate.

2. The method according to claim 1, characterized in that The first pressure range is between 9 MPa and 9.5 MPa, and the first rate is 1 megawatt per minute.

3. The method according to claim 1, characterized in that: The method further comprises: Obtaining an average furnace flue gas temperature of a boiler of the target power plant; In response to the furnace average smoke temperature being lower than a preset temperature threshold, the load controller controls the online load to be a second load threshold.

4. The method according to claim 1, characterized in that The method further comprises: In response to receiving a first prompt from the staff of the target power plant, the online load is controlled to a third load threshold by the load controller; wherein the first prompt is used to indicate that the fuel combustion in the boiler of the target power plant is unstable, and the third load threshold is less than the second load threshold.

5. The method according to claim 1, characterized in that After obtaining the grid-connected load of the target power plant, the method further comprises: In response to the online load being less than a fourth load threshold, a third control signal is sent to a furnace pressure controller, and a fourth control signal is sent to a main steam flow controller; the third control signal is used to enable the furnace pressure controller to control the furnace pressure to be within a second pressure range, the second pressure range being between negative thirty megapascals and negative fifty megapascals; the fourth control signal is used to enable the main steam flow controller to control the pipeline flow of the steam turbine of the target power plant to be within a first flow range, the first flow range being no greater than three hundred and twenty tons per hour; The fourth load threshold is less than the first load threshold.

6. The method according to claim 5, characterized in that The method further comprises: In response to the variation range of the upper and lower limits of the on-grid load being greater than the first variation range, a fifth control signal is sent to the load controller; the fifth control signal is used to enable the load controller to control the upper and lower limits of the on-grid load of the target power plant within the first variation range; In response to the upper and lower limits of the online load being within the first variation range, a sixth control signal is sent to the load controller; the sixth control signal is used to enable the load controller to control the online load of the target power plant to the fourth load threshold.

7. A load control device, characterized in that: include: A first acquisition unit, used to acquire the grid-connected load of a target power plant; A first sending unit, configured to send a first control signal to a main steam pressure controller and a second control signal to a load controller in response to the online load being less than a first load threshold; The first control signal is used to enable the main steam pressure controller to control the pipeline pressure of the steam turbine of the target power plant to be within a first pressure range, and the second control signal is used to enable the load controller to set the online load change rate of the target power plant to a first rate.

8. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 6.

9. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 1 to 6.

10. A computer program product, characterized in that A computer program is included which, when executed by a processor, implements the method according to any one of claims 1 to 6.

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