CN117411015A - Load control method and device, storage medium and electronic equipment - Google Patents

Load control method and device, storage medium and electronic equipment Download PDF

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Publication number
CN117411015A
CN117411015A CN202311687897.5A CN202311687897A CN117411015A CN 117411015 A CN117411015 A CN 117411015A CN 202311687897 A CN202311687897 A CN 202311687897A CN 117411015 A CN117411015 A CN 117411015A
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CN
China
Prior art keywords
load
adjustment
value
instruction
preset
Prior art date
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Granted
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CN202311687897.5A
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Chinese (zh)
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CN117411015B (en
Inventor
孟继洲
张凌灿
方久文
冯洪林
毕建伟
高宝生
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Tianjin Guoneng Binhai Thermal Power Co ltd
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Tianjin Guoneng Binhai Thermal Power Co ltd
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Priority to CN202311687897.5A priority Critical patent/CN117411015B/en
Publication of CN117411015A publication Critical patent/CN117411015A/en
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Publication of CN117411015B publication Critical patent/CN117411015B/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • H02J3/144—Demand-response operation of the power transmission or distribution network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
    • H02J3/241—The oscillation concerning frequency
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H02J3/48—Controlling the sharing of the in-phase component
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
    • H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
    • H02J2310/58—The condition being electrical
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Turbines (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

The disclosure relates to a load control method, a device, a storage medium and an electronic apparatus, wherein the method comprises the following steps: in response to receiving an AGC load instruction, acquiring a first load of a generator set, wherein the AGC load instruction is used for indicating to adjust the first load according to a specified load value; determining a target load adjustment value according to a preset compensation load and the specified load value; and adjusting the first load according to the target load adjustment value.

Description

Load control method and device, storage medium and electronic equipment
Technical Field
The disclosure relates to the technical field of generator sets, and in particular relates to a load control method, a load control device, a storage medium and electronic equipment.
Background
Most of the current grid-connected units still adopt a single machine AGC (Automatic Generation Control, automatic power generation control) mode, and accept remote control instructions of power grid dispatching EMS (Energy Management System energy management system). After each unit receives a target load instruction issued by the power grid dispatching EMS, the existing factory-level AGC control system determines an adjusting load to be adjusted according to the actual load of the current unit.
However, due to the differences of the characteristics of the boiler and the turbine in the generator set, the change of coal quality and other uncontrollable factors, the actual load changing rate of the generator set is difficult to be consistent with the regulation command and is generally smaller than the command to a great extent, so that the load changing rate is low and the generated energy is reduced.
Disclosure of Invention
The invention aims to provide a load control method, a load control device, a storage medium and electronic equipment, which are used for realizing frequency adjustment of a generator set.
To achieve the above object, in a first aspect, the present disclosure provides a load control method, the method comprising:
in response to receiving an AGC load instruction, acquiring a first load of a generator set, wherein the AGC load instruction is used for indicating to adjust the first load according to a specified load value;
determining a target load adjustment value according to a preset compensation load and the specified load value;
and adjusting the first load according to the target load adjustment value.
Optionally, the acquiring the first load of the generator set includes:
and under the condition that the first load is less than or equal to the specified load value, acquiring the first load of the generator set.
Optionally, the determining the target load adjustment value according to the preset compensation load and the specified load value includes:
determining a preset compensation load according to the first load and the specified load value;
according to the adjustment range of the preset compensation load, determining a load adjustment level corresponding to the adjustment range from a plurality of preset load adjustment levels;
and determining a target load adjustment value corresponding to the load adjustment level according to the load adjustment level.
Optionally, the determining, according to the load adjustment level, a target load adjustment value corresponding to the load adjustment level includes:
and under the condition that the load adjustment level is determined to be a first adjustment level, determining a corresponding first preset adjustment load in a plurality of preset adjustment loads as a target load adjustment value corresponding to the load adjustment level.
Optionally, the method further comprises:
and under the condition that the load adjustment level is determined to be the second adjustment level, determining a corresponding target load adjustment value according to a preset adjustment algorithm.
Optionally, the adjusting the first load according to the target load adjustment value includes:
generating a load adjustment instruction according to the target load adjustment value;
and sending the load adjustment instruction to a generator set so that the generator set can adjust the first load in response to the received load adjustment instruction.
Optionally, the first load includes a steam turbine side load and a boiler side load; the sending the load adjustment instruction to a generator set, so that the generator set responds to the received load adjustment instruction, and adjusting the first load comprises:
determining a turbine side load command and a boiler side load command according to the load adjustment command;
the method includes controlling a turbine side load according to the turbine side load command, and controlling a boiler side load according to the boiler side load command.
In a second aspect, the present disclosure provides a load control device, the device comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for responding to receiving an AGC load instruction, and the AGC load instruction is used for indicating to adjust the first load according to a specified load value;
the determining module is used for determining a target load adjustment value according to a preset compensation load and the specified load value;
and the adjusting module is used for adjusting the first load according to the target load adjusting value.
Optionally, the acquiring module is configured to acquire the first load of the generator set when the first load is determined to be less than or equal to the specified load value.
Optionally, the determining module includes:
the first determining submodule is used for determining a preset compensating load according to the first load and the appointed load value;
the second determining submodule is used for determining a load adjustment level corresponding to the adjustment range from a plurality of preset load adjustment levels which are preset according to the adjustment range where the preset compensation load is located;
and the third determining submodule is used for determining a target load adjustment value corresponding to the load adjustment level according to the load adjustment level.
Optionally, the third determining submodule is configured to determine, when determining that the load adjustment level is the first adjustment level, a corresponding first preset adjustment load of a plurality of preset adjustment loads as a target load adjustment value corresponding to the load adjustment level.
Optionally, the third determining submodule is further configured to determine a corresponding target load adjustment value according to a preset adjustment algorithm when the load adjustment level is determined to be the second adjustment level.
Optionally, the adjusting module includes:
a generating sub-module, configured to generate a load adjustment instruction according to the target load adjustment value;
and the adjustment sub-module is used for sending the load adjustment instruction to the generator set so that the generator set can respond to the received load adjustment instruction and adjust the first load.
Optionally, the first load includes a steam turbine side load and a boiler side load; the adjusting submodule is used for determining a load instruction of the engine side and a load instruction of the boiler side according to the load adjusting instruction;
the method includes controlling a turbine side load according to the turbine side load command, and controlling a boiler side load according to the boiler side load command.
In a third aspect, the present disclosure provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the load control method provided by the first aspect of the present disclosure.
In a fourth aspect, the present disclosure provides an electronic device comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of the load control method provided in the first aspect of the present disclosure.
According to the technical scheme, the first load of the generator set is obtained by responding to the received AGC load instruction, and the AGC load instruction is used for indicating to adjust the first load according to the appointed load value; determining a target load adjustment value according to a preset compensation load and the specified load value; and adjusting the first load according to the target load adjustment value. Therefore, after the appointed load value is determined according to the AGC load instruction, the target load adjustment value can be determined according to the preset compensation load and the appointed load value, so that the actual load change rate of the generator set can be adjusted, the actual load change rate of the generator set is kept consistent with the adjustment instruction, the load change rate can be improved, and the generated energy can be increased.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure.
Fig. 1 is a flow chart illustrating a load control method according to an exemplary embodiment.
Fig. 2 is a flow chart illustrating a load control method according to an exemplary embodiment.
Fig. 3 is a flow chart illustrating a load control method according to an exemplary embodiment.
Fig. 4 is a block diagram of a load control device according to an exemplary embodiment.
Fig. 5 is a block diagram of a determination module shown in accordance with the embodiment of fig. 4.
Fig. 6 is a block diagram of an adjustment module according to the embodiment shown in fig. 4.
Fig. 7 is a block diagram of an electronic device, according to an example embodiment.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
It is to be understood that the terms "first," "second," and the like in this disclosure are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance.
In the description of the present disclosure, unless otherwise indicated, "a plurality" means two or more than two, and other adjectives are similar thereto; "at least one item", "an item" or "a plurality of items" or the like, refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (a) may represent any number a; as another example, one (or more) of a, b, and c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural; "and/or" is an association relationship describing an association object, meaning that there may be three relationships, e.g., a and/or B, which may represent: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" indicates that the front-rear association object is an or relationship.
Although operations or steps are described in a particular order in the figures in the disclosed embodiments, it should not be understood as requiring that such operations or steps be performed in the particular order shown or in sequential order, or that all illustrated operations or steps be performed, to achieve desirable results. In embodiments of the present disclosure, these operations or steps may be performed serially; these operations or steps may also be performed in parallel; some of these operations or steps may also be performed.
First, an application scenario of the present disclosure is described, where the present disclosure is applied to an AGC frequency modulation application scenario of a generator set. Most of the current grid-connected units still adopt a single machine AGC (Automatic Generation Control, automatic power generation control) mode, and accept remote control instructions of power grid dispatching EMS (Energy Management System energy management system). After each unit receives a target load instruction issued by the power grid dispatching EMS, the existing factory-level AGC control system determines an adjusting load to be adjusted according to the actual load of the current unit, for example, the actual load is 181MW when the AGC is in an on-state, the AGC gives 196MW, and the coordination instruction is increased from 181MW to 196MW at a rate of 6 MW/min.
However, due to the differences of the characteristics of the boiler and the turbine in the generator set, the change of coal quality and other uncontrollable factors, the actual load changing rate of the generator set is difficult to be consistent with the regulation command and is generally smaller than the command to a great extent, so that the load changing rate is low and the generated energy is reduced.
For example, taking the swelling load in one AGC on state as an example, the actual load is 181MW, the AGC gives 196MW, the coordination command swells from 18MW to 196MW at a rate of 6MW/min, and the actual load needs about 6 minutes to swell from 181MW to 196MW, the average swelling load rate is 2.5MW/min, which is far different from the rate of the swelling load of the coordination command of 6 MW/min. This results in the possibility that the load will be preempted by other power plants with fast load response, which results in a direct economic loss. And after adjustment, the current actual load value of the unit fluctuates at about 196MW, so that the generated energy is insufficient.
In order to solve the above problems, the present disclosure provides a load control method, a device, a storage medium, and an electronic apparatus, according to the above technical solutions, by obtaining a first load of a generator set in response to receiving an AGC load instruction, where the AGC load instruction is used to instruct to adjust the first load according to a specified load value; determining a target load adjustment value according to a preset compensation load and the specified load value; and adjusting the first load according to the target load adjustment value. Therefore, after the appointed load value is determined according to the AGC load instruction, the target load adjustment value can be determined according to the preset compensation load and the appointed load value, so that the actual load change rate of the generator set can be adjusted, the actual load change rate of the generator set is consistent with the adjustment instruction, the load change rate can be improved, and the generated energy can be increased.
The following describes specific embodiments of the present invention in detail with reference to the drawings.
Fig. 1 is a flow chart illustrating a load control method according to an exemplary embodiment, which may include the following steps, as shown in fig. 1.
In step S101, a first load of the genset is obtained in response to receiving the AGC load command.
Wherein the AGC load command is for instructing to adjust the first load according to a specified load value. In the power industry, AGC can refer to automatic power generation control, which is one of paid auxiliary services provided by grid-connected power plants, a generator set tracks an instruction issued by a power dispatching transaction mechanism within a specified output adjustment range, and the power generation output is adjusted in real time according to a certain adjustment rate so as to meet the power system frequency and the service required by tie-line power control.
In this step, when the energy storage system of the power generation system is in the AGC frequency modulation mode, the power generation unit can be subjected to frequency modulation according to an AGC frequency modulation instruction of an RTU (Remote Terminal Unit, remote measurement and control system unit), and when the power generation unit receives the AGC frequency modulation instruction, a first load of the power generation unit is obtained.
In some embodiments, the first load of the genset may be obtained if the first load is determined to be less than or equal to the specified load value.
This is because, when the first load is greater than the specified load value, it may indicate that the current power generation amount is high, and thus, there is a high economic benefit, and therefore, the load of the generator set may not be adjusted when the first load is greater than the specified load value, but if the first load is greater than the specified load value, for example, when the first load is greater than the specified load value by a preset value, the load of the generator set still needs to be adjusted, because this affects the adjustment of the overall load in the area. And when the first load is smaller than or equal to the specified load value, the current generating capacity can be indicated to be low, and the load of the generator set needs to be adjusted immediately.
In step S102, a target load adjustment value is determined based on the preset compensation load and the specified load value.
Wherein the specified load value is a load value that the AGC load command indicates to the genset to reach.
In this step, due to the difference of the boiler turbine characteristics, the change of the coal quality and other uncontrollable factors in the generator set, the actual load-changing rate of the generator set is difficult to be consistent with the regulation command, and is generally smaller than the command requirement to a greater extent, so that the load-changing rate is low, and the generated energy is reduced. Therefore, after the specified load value is determined according to the AGC load command, the preset compensation load may be acquired to compensate for the specified load value, resulting in a final target load adjustment value.
In step S103, the first load is adjusted according to the target load adjustment value.
In this step, since the AGC load command is a step change signal and the load of the generator set is regulated smoothly, in order to further ensure the stability of the load regulation of the target generator set, after determining the AGC load command, the specified load value may be determined according to the AGC load command, and then the preset compensation load may be acquired to compensate the specified load value, thereby obtaining a final target load regulation value, determining a new AGC load command according to the target load regulation value, and predicting the target load of the generator set at each time point in the regulation period according to the new AGC load command and the operation rate of the generator set, so as to realize the regulation of the first load.
In some embodiments, for the first load at any time point, a deviation between the designated load value and the first load of the generator set may be determined as a load deviation value of the generator set, and then the load deviation value is adjusted according to a preset compensation load to obtain the target load adjustment value.
Specifically, the deviation comparison may be sequentially performed according to the sequence of the time points. Taking the first time point as an example, firstly determining the deviation between the appointed load value of the time point and the first load of the generator set as the load deviation value of the generator set, and carrying out subsequent control work. When the time reaches the next time point, determining the deviation between the appointed load value of the time point and the first load of the generator set as the load deviation value of the generator set, and carrying out subsequent control work, and the like until the AGC load instruction is completed.
By adopting the technical scheme, the first load of the generator set is obtained by responding to the received AGC load instruction, and the AGC load instruction is used for indicating to adjust the first load according to the appointed load value; determining a target load adjustment value according to a preset compensation load and the specified load value; and adjusting the first load according to the target load adjustment value. Therefore, after the appointed load value is determined according to the AGC load instruction, the target load adjustment value can be determined according to the preset compensation load and the appointed load value, so that the actual load change rate of the generator set can be adjusted, the actual load change rate of the generator set is consistent with the adjustment instruction, the load change rate can be improved, and the generated energy can be increased.
In some embodiments, as shown in fig. 2, the step S102 may include the following steps.
In step S1021, a preset compensation load is determined based on the first load and the specified load value.
The preset compensation load can be used for indicating the current load value to be adjusted of the generator set.
In this step, a preset compensation load may be determined according to a difference between the first load and the specified load value.
In step S1022, according to the adjustment range in which the preset compensation load is located, a load adjustment level corresponding to the adjustment range is determined from a plurality of preset load adjustment levels determined in advance.
The different levels of the preset load adjustment level are used for representing different adjustment efficiencies when the load of the generator set is adjusted, for example, in the case that the preset load adjustment level is a first level and a second level, respectively, it may be determined that the adjustment efficiency corresponding to the first level is greater than the adjustment efficiency corresponding to the second level, and specifically, the adjustment efficiency may be determined by the determined load value.
In step S1023, a target load adjustment value corresponding to the load adjustment level is determined according to the load adjustment level.
Different levels of the preset load adjustment level can correspond to different preset compensation loads. In one possible implementation manner, according to different levels of the preset load adjustment level, different preset compensation loads corresponding to the different levels can also be determined through the preset adjustment algorithm.
In some embodiments, when the load adjustment level is determined to be the first adjustment level, a corresponding first preset adjustment load of a plurality of preset adjustment loads may be determined to be a target load adjustment value corresponding to the load adjustment level, where the target load adjustment value may include an adjustment speed value.
For example, the adjustment range corresponding to the first adjustment level includes 10MW-20MW, where the correspondence between the preset adjustment load and the preset compensation load in the first adjustment level may be as follows:
taking the case of taking the rising load under the one-time AGC input state as an example, the actual load is 181MW, the AGC given load is 196MW, the preset compensating load is 15MW, the 15MW is in the 14-16MW range in the adjusting range corresponding to the first adjusting level, the corresponding preset adjusting load is 14MW/min, thus when the preset compensating load is larger, the actual variable load rate of the generator set is prevented from being inconsistent with the adjusting command and being smaller than the command to a larger extent, and the adjustment can be directly carried out through the target load adjusting value, so that the adjustment target is reached as soon as possible.
In other embodiments, in the event that the load adjustment level is determined to be the second adjustment level, a corresponding target load adjustment value is determined according to a preset adjustment algorithm.
For example, the adjustment range corresponding to the second adjustment level includes 0MW-10MW, where when the preset compensation load is smaller, it may be indicated that the difference between the first load of the generator set and the designated load value of the AGC load instruction is smaller, and in this case, the adjustment by directly using a large preset adjustment load is not suitable, which may cause the first load of the generator set to rise suddenly, and further cause the change rate of the load to be too high, and affect the frequency. In this case, therefore, a preset adjustment algorithm can be used, which is preset, to make finer adjustments to the preset compensation load.
In some embodiments, the preset adjustment algorithm may include a historical data preference weighting algorithm, an equal ratio adjustment algorithm, and a crew parameter adjustment algorithm.
Algorithm one, the historical data preference weighting algorithm, may be determined in the following manner.
The method comprises the steps that a plurality of historical data in a historical preset time period are obtained, the historical data are the historical data which are used for carrying out load adjustment on a first load of a generator set in the historical preset time period, the load adjustment effect meets the expected historical data of a worker, the historical data comprise historical load adjustment values corresponding to historical compensation loads, according to the corresponding relation between the historical compensation loads and the historical load adjustment values, the adjustment weights of the historical compensation loads and the historical load adjustment values with different values are determined, the adjustment weights are used for representing the proportion of the historical compensation loads with different values in the process of adjusting the loads, for example, the smaller the compensation load value is, the more sensitive the adjustment efficiency is, the larger the compensation load value is, the less sensitive the adjustment efficiency is, and the corresponding weight is 0.5 when the preset adjustment load is 5MW and the corresponding weight is 0.8 when the preset adjustment load is 8MW can be obtained when the second adjustment level is 0MW and the adjustment range corresponding to the second adjustment level is 0MW to 10 MW.
Algorithm two, the ratio adjustment algorithm, may be determined in the following manner.
Considering that the smaller the compensation load value is, the more sensitive the adjustment efficiency is, the larger the value is, and the less sensitive the adjustment efficiency is, the target load adjustment value corresponding to the first preset compensation load in the second adjustment level can be fixedly set as a in advance 1 The target load adjustment values corresponding to the remaining preset compensation loads except the first preset compensation load are amplified by equal ratio, for example, the target load adjustment value a corresponding to the nth preset compensation load n Can be expressed as a n =a 1 +q n-1 。
Algorithm three, the unit parameter adjustment algorithm, may be determined in the following manner.
The method comprises the steps of obtaining a plurality of historical data in a historical preset time period, wherein the historical data are the historical data which are obtained by carrying out load adjustment on a first load of a generator set in the historical preset time period, and the load adjustment effect meets the expectations of staff, the historical data comprise historical load adjustment values corresponding to historical compensation loads and set parameters corresponding to the historical compensation loads, and according to the relation among the historical compensation loads, the set parameters and the historical load adjustment values, establishing a corresponding relation among the three, and taking the corresponding relation among the three as a set parameter adjustment algorithm.
By adopting the technical scheme, the target load adjustment value can be determined according to the preset compensation load and the specified load value, so that the actual load change rate of the generator set can be adjusted, the actual load change rate of the generator set is consistent with the adjustment instruction, the load change rate can be improved, and the generated energy can be increased.
In some embodiments, as shown in fig. 3, the step S103 may include the following steps.
In step S1031, a load adjustment command is generated based on the target load adjustment value.
In step S1032, the load adjustment command is sent to the generator set, so that the generator set adjusts the first load in response to the received load adjustment command.
Wherein the first load includes a steam turbine side load and a boiler side load.
In some embodiments, the steam turbine side load command and the boiler side load command may be determined first based on the load adjustment command; the turbine side load may then be controlled in accordance with the turbine side load command and the boiler side load may be controlled in accordance with the boiler side load command.
By adopting the technical scheme, the equipment of the generator set can be subjected to targeted load adjustment according to the load adjustment instruction.
Fig. 4 is a block diagram of a load control device according to an exemplary embodiment, and as shown in fig. 4, the load control device 200 includes:
an obtaining module 201, configured to obtain a first load of the generator set in response to receiving an AGC load instruction, where the AGC load instruction is configured to instruct to adjust the first load according to a specified load value;
a determining module 202, configured to determine a target load adjustment value according to a preset compensation load and the specified load value;
the adjusting module 203 is configured to adjust the first load according to the target load adjustment value.
Optionally, the obtaining module is configured to obtain the first load of the generator set if the first load is determined to be less than or equal to the specified load value.
Fig. 5 is a block diagram of a determination module shown in the embodiment of fig. 4, and as shown in fig. 5, the determination module 202 includes:
a first determining submodule 2021 for determining a preset compensating load according to the first load and the specified load value;
the second determining submodule 2022 is configured to determine, according to an adjustment range in which the preset compensation load is located, a load adjustment level corresponding to the adjustment range from a plurality of preset load adjustment levels determined in advance.
A third determining submodule 2023 is configured to determine, according to the load adjustment level, a target load adjustment value corresponding to the load adjustment level.
Optionally, the third determining submodule 2023 is configured to determine, when the load adjustment level is determined to be the first adjustment level, a corresponding first preset adjustment load of a plurality of preset adjustment loads as a target load adjustment value corresponding to the load adjustment level.
Optionally, the third determining submodule 2023 is configured to determine, in a case where the load adjustment level is determined to be the second adjustment level, a corresponding target load adjustment value according to a preset adjustment algorithm.
Fig. 6 is a block diagram of an adjustment module according to the embodiment shown in fig. 4, and as shown in fig. 6, the adjustment module 203 includes:
a generating submodule 2031 for generating a load adjustment instruction according to the target load adjustment value;
an adjustment submodule 2032 for sending the load adjustment instruction to the generator set so that the generator set adjusts the first load in response to the received load adjustment instruction.
Optionally, the first load includes a steam turbine side load and a boiler side load, and the adjusting submodule 2032 is configured to determine a steam turbine side load instruction and a boiler side load instruction according to the load adjusting instruction;
the turbine side load is controlled according to the turbine side load command, and the boiler side load is controlled according to the boiler side load command.
By adopting the device, the first load of the generator set is obtained by responding to the received AGC load instruction, and the AGC load instruction is used for indicating to adjust the first load according to the appointed load value; determining a target load adjustment value according to a preset compensation load and the specified load value; and adjusting the first load according to the target load adjustment value. Therefore, after the appointed load value is determined according to the AGC load instruction, the target load adjustment value can be determined according to the preset compensation load and the appointed load value, so that the actual load change rate of the generator set can be adjusted, the actual load change rate of the generator set is consistent with the adjustment instruction, the load change rate can be improved, and the generated energy can be increased.
The specific manner in which the various modules perform the operations in the apparatus of the above embodiments have been described in detail in connection with the embodiments of the method, and will not be described in detail herein.
Fig. 7 is a block diagram of an electronic device 700, according to an example embodiment. As shown in fig. 7, the electronic device 700 may include: a processor 701, a memory 702. The electronic device 700 may also include one or more of a multimedia component 703, an input/output (I/O) interface 704, and a communication component 705.
The processor 701 is configured to control the overall operation of the electronic device 700 to perform all or part of the steps in the load control method described above. The memory 702 is used to store various types of data to support operation on the electronic device 700, which may include, for example, instructions for any application or method operating on the electronic device 700, as well as application-related data, such as contact data, messages sent and received, pictures, audio, video, and so forth. The Memory 702 may be implemented by any type or combination of volatile or non-volatile Memory devices, such as static random access Memory (Static Random Access Memory, SRAM for short), electrically erasable programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM for short), erasable programmable Read-Only Memory (Erasable Programmable Read-Only Memory, EPROM for short), programmable Read-Only Memory (Programmable Read-Only Memory, PROM for short), read-Only Memory (ROM for short), magnetic Memory, flash Memory, magnetic disk, or optical disk. The multimedia component 703 can include a screen and an audio component. Wherein the screen may be, for example, a touch screen, the audio component being for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signals may be further stored in the memory 702 or transmitted through the communication component 705. The audio assembly further comprises at least one speaker for outputting audio signals. Input/output (I/O) interface 704 provides an interface between processor 701 and other interface modules, which may be a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 705 is for wired or wireless communication between the electronic device 700 and other devices. Wireless communication, such as Wi-Fi, bluetooth, near field communication (Near Field Communication, NFC for short), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or one or a combination of more of them, is not limited herein. The corresponding communication component 705 may thus comprise: wi-Fi module, bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic device 700 may be implemented by one or more application specific integrated circuits (Application Specific Integrated Circuit, abbreviated ASIC), digital signal processor (Digital Signal Processor, abbreviated DSP), digital signal processing device (Digital Signal Processing Device, abbreviated DSPD), programmable logic device (Programmable Logic Device, abbreviated PLD), field programmable gate array (Field Programmable Gate Array, abbreviated FPGA), controller, microcontroller, microprocessor, or other electronic components for performing the load control method described above.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the load control method described above is also provided. For example, the computer readable storage medium may be the memory 702 including program instructions described above, which are executable by the processor 701 of the electronic device 700 to perform the load control method described above.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations are not described further in this disclosure in order to avoid unnecessary repetition.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims (14)

1. A method of load control, the method comprising:
in response to receiving an AGC load instruction, acquiring a first load of a generator set, wherein the AGC load instruction is used for indicating to adjust the first load according to a specified load value;
determining a preset compensation load according to the first load and the specified load value;
according to the adjustment range of the preset compensation load, determining a load adjustment level corresponding to the adjustment range from a plurality of preset load adjustment levels;
according to the load adjustment level, determining a target load adjustment value corresponding to the load adjustment level;
and adjusting the first load according to the target load adjustment value.
2. The method of claim 1, wherein the obtaining a first load of a generator set comprises:
and under the condition that the first load is less than or equal to the specified load value, acquiring the first load of the generator set.
3. The method of claim 1, wherein determining a target load adjustment value corresponding to the load adjustment level according to the load adjustment level comprises:
and under the condition that the load adjustment level is determined to be a first adjustment level, determining a corresponding first preset adjustment load in a plurality of preset adjustment loads as a target load adjustment value corresponding to the load adjustment level.
4. A method according to claim 3, characterized in that the method further comprises:
and under the condition that the load adjustment level is determined to be the second adjustment level, determining a corresponding target load adjustment value according to a preset adjustment algorithm.
5. The method of any of claims 1-4, wherein adjusting the first load according to the target load adjustment value comprises:
generating a load adjustment instruction according to the target load adjustment value;
and sending the load adjustment instruction to a generator set so that the generator set can adjust the first load in response to the received load adjustment instruction.
6. The method of claim 5, wherein the first load comprises a steam turbine side load and a boiler side load;
the sending the load adjustment instruction to a generator set, so that the generator set responds to the received load adjustment instruction, and adjusting the first load comprises:
determining a turbine side load command and a boiler side load command according to the load adjustment command;
the method includes controlling a turbine side load according to the turbine side load command, and controlling a boiler side load according to the boiler side load command.
7. A load control device, the device comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for responding to receiving an AGC load instruction, and the AGC load instruction is used for indicating to adjust the first load according to a specified load value;
the first determining module is used for determining a preset compensation load according to the first load and the specified load value;
the second determining module is used for determining a load adjustment level corresponding to the adjustment range from a plurality of preset load adjustment levels which are preset according to the adjustment range where the preset compensation load is located;
a third determining module, configured to determine a target load adjustment value corresponding to the load adjustment level according to the load adjustment level;
and the adjusting module is used for adjusting the first load according to the target load adjusting value.
8. The apparatus of claim 7, wherein the device comprises a plurality of sensors,
the acquisition module is used for acquiring the first load of the generator set under the condition that the first load is smaller than or equal to the specified load value.
9. The apparatus of claim 7, wherein the device comprises a plurality of sensors,
the third determining module is configured to determine, when determining that the load adjustment level is the first adjustment level, a corresponding first preset adjustment load of a plurality of preset adjustment loads as a target load adjustment value corresponding to the load adjustment level.
10. The apparatus of claim 9, wherein the device comprises a plurality of sensors,
the third determining module is further configured to determine, according to a preset adjustment algorithm, a corresponding target load adjustment value when the load adjustment level is determined to be the second adjustment level.
11. The apparatus according to any one of claims 7-10, wherein the adjustment module comprises:
a generating sub-module, configured to generate a load adjustment instruction according to the target load adjustment value;
and the adjustment sub-module is used for sending the load adjustment instruction to the generator set so that the generator set can respond to the received load adjustment instruction and adjust the first load.
12. The apparatus of claim 11, wherein the first load comprises a steam turbine side load and a boiler side load;
the adjusting submodule is used for determining a load instruction of the engine side and a load instruction of the boiler side according to the load adjusting instruction;
the method includes controlling a turbine side load according to the turbine side load command, and controlling a boiler side load according to the boiler side load command.
13. A non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the program when executed by a processor realizes the steps of the method according to any of claims 1-6.
14. An electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to implement the steps of the method of any one of claims 1-6.
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