CN111244976B - Power generation adjusting method and device based on flywheel energy storage - Google Patents
Power generation adjusting method and device based on flywheel energy storage Download PDFInfo
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- CN111244976B CN111244976B CN202010159748.1A CN202010159748A CN111244976B CN 111244976 B CN111244976 B CN 111244976B CN 202010159748 A CN202010159748 A CN 202010159748A CN 111244976 B CN111244976 B CN 111244976B
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- 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
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- 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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/30—Arrangements for balancing of the load in a network by storage of energy using dynamo-electric machines coupled to flywheels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/02—Additional mass for increasing inertia, e.g. flywheels
- H02K7/025—Additional mass for increasing inertia, e.g. flywheels for power storage
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
The application provides a power generation adjusting method and equipment based on flywheel energy storage, relates to the technical field of power supply, and is applied to a controller of the power generation adjusting equipment; the flywheel device is connected with the power generation system, the controller is connected with the power generation system, and the controller is connected with the flywheel device; the method comprises the following steps: acquiring target power generation parameters and current power generation parameters of a power generation system; determining a power generation parameter difference value between a current power generation parameter and a target power generation parameter; and controlling the rotating speed of the flywheel device according to the power generation parameter difference value so that the difference value between the power generation parameter of the power generation system and the target power generation parameter is smaller than a preset parameter threshold value. The power generation adjusting equipment controls the rotating speed of the flywheel device according to the power generation parameter difference determined by the current power generation parameter and the target power generation parameter, so that the energy storage state of the flywheel device is controlled, the power generation of the power generation system is adjusted, and the power generation stability of the power generation system is ensured.
Description
Technical Field
The application relates to the technical field of power supply, in particular to a power generation adjusting method and device based on flywheel energy storage.
Background
In an electric power system network, because the power of a load end is suddenly increased and decreased, the frequency and the voltage of the whole electric power system are often fluctuated, and in order to meet the requirement that a power generation side can meet the requirement of timely responding to the power change of the load end, frequency modulation measures such as a thermal power frequency modulation unit, storage battery energy storage frequency modulation and pumped storage frequency modulation are usually adopted to ensure the normal output of the power generation system and the stability of the whole electric power system. However, the existing frequency modulation technology is based on frequency modulators of thermal power plants, hydropower stations or pumped storage power stations, and the like, and due to the fact that load fluctuation is large, the frequency of the system cannot maintain dynamic balance due to the influence of the quality of a frequency modulation power supply and the response speed delay of a controller in the frequency modulation process, and the power system is unstable.
Disclosure of Invention
An embodiment of the present application provides a method and an apparatus for adjusting power generation based on flywheel energy storage, so as to solve the problem of unstable power system in the prior art.
In a first aspect, an embodiment of the present application provides a power generation adjusting method based on flywheel energy storage, which is applied to a controller of a power generation adjusting device, where the power generation adjusting device further includes a flywheel device; the flywheel device is connected with a power generation system, the controller is connected with the power generation system, and the controller is connected with the flywheel device; the method comprises the following steps: acquiring target power generation parameters and current power generation parameters of the power generation system; determining a power generation parameter difference between the current power generation parameter and the target power generation parameter; and controlling the rotating speed of the flywheel device according to the power generation parameter difference value so that the difference value between the power generation parameter of the power generation system and the target power generation parameter is smaller than a preset parameter threshold value.
In the implementation process, the power generation adjusting equipment acquires the current power generation parameters and the target power generation parameters of the power generation system through the controller, and controls the rotating speed of the flywheel device according to the power generation parameter difference determined by the current power generation parameters and the target power generation parameters, so that the energy storage state of the flywheel device is controlled, the power generation of the power generation system is adjusted, and the power generation stability of the power generation system is ensured.
Optionally, the step of controlling the rotation speed of the flywheel device according to the power generation parameter difference comprises: when the current power generation parameter is larger than the target power generation parameter, judging whether the power generation parameter difference is larger than a first preset value; and if so, controlling the rotating speed of the flywheel device to be increased to a corresponding rotating speed so as to enable the difference value between the power generation parameter of the power generation system and the target power generation parameter to be smaller than a preset parameter threshold value.
In the implementation process, when the current power generation parameter is greater than the target power generation parameter, the difference between the current power generation parameter and the target power generation parameter of the power generation system is too large, and then the flywheel device can be controlled to increase the wheel speed so as to absorb partial energy, thereby ensuring that the difference between the power generation parameter and the target power generation parameter of the power generation system is less than a preset parameter threshold value, and further ensuring the stability of power generation.
Optionally, the step of controlling the rotation speed of the flywheel device to be increased to a corresponding rotation speed comprises: controlling the rotating speed of the flywheel device to increase by a first preset amplitude value, and acquiring the current power generation parameters of the power generation system after the rotating speed is adjusted; judging whether the difference value between the adjusted current power generation parameter and the target power generation parameter is smaller than the preset parameter threshold value or not; if the difference value is smaller than the preset parameter threshold value, stopping the rotation speed adjustment; and if the difference is larger than the preset parameter threshold, the step of controlling the rotating speed of the flywheel device to increase by a first preset amplitude value is carried out.
In the implementation process, when the rotation speed of the flywheel device is controlled to be increased to the corresponding rotation speed, the rotation speed of the flywheel device may be controlled to be increased by a first preset amplitude value, and then whether the difference value between the power generation parameter of the power generation system and the target power generation parameter is smaller than a preset parameter threshold value is judged, if not, the rotation speed of the flywheel device is continuously controlled to be increased to the first preset amplitude value until the power generation system is kept in a relatively stable power generation state.
Optionally, the step of controlling the rotation speed of the flywheel device according to the power generation parameter difference comprises: when the current power generation parameter is smaller than the target power generation parameter, judging whether the power generation parameter difference is larger than a first preset value; and if so, controlling the rotating speed of the flywheel device to be reduced to a corresponding rotating speed so as to enable the difference value between the power generation parameter of the power generation system and the target power generation parameter to be smaller than a preset parameter threshold value.
In the implementation process, when the current power generation parameter is smaller than the target power generation parameter, the difference between the current power generation parameter and the target power generation parameter of the power generation system is too large, and then the flywheel device can be controlled to reduce the speed of the wheel so as to release part of energy, so that the difference between the power generation parameter and the target power generation parameter of the power generation system is smaller than a preset parameter threshold value, and then the stability of power generation can be ensured.
Optionally, the step of controlling the rotation speed of the flywheel device to be reduced to a corresponding rotation speed comprises: controlling the rotating speed of the flywheel device to reduce by a first preset amplitude value, and acquiring the current power generation parameters of the power generation system after the rotating speed is adjusted; judging whether the difference value between the adjusted current power generation parameter and the target power generation parameter is smaller than the preset parameter threshold value or not; if the difference value is smaller than the preset parameter threshold value, stopping the rotation speed adjustment; and if the difference is larger than the preset parameter threshold, the step of controlling the rotating speed of the flywheel device to reduce a first preset amplitude value is carried out.
In the implementation process, when the rotation speed of the flywheel device is controlled to be reduced to the corresponding rotation speed, the rotation speed of the flywheel device can be controlled to be reduced by a first preset amplitude value, then whether the difference value between the power generation parameter of the power generation system and the target power generation parameter is smaller than a preset parameter threshold value is judged, if not, the rotation speed of the flywheel device is continuously controlled to be reduced to the first preset amplitude value until the power generation system is kept in a stable power generation state.
Optionally, the power generation regulating device further comprises a speed regulator, the controller is connected with the speed regulator, and the speed regulator is further connected with the power generation system; before the step of obtaining the target power generation parameter and the current power generation parameter of the power generation system, the method further includes: acquiring initial power generation parameters of the power generation system, and determining a power difference of the speed regulator according to the initial power generation parameters and the target power generation parameters; and the speed regulator regulates the power generation system once according to the power difference so as to regulate the power generation parameters of the power generation system to be changed from the initial power generation parameters to the current power generation parameters.
In the implementation process, the speed regulator can adjust the initial power generation parameters of the power generation system to the current power generation parameters, namely primary frequency modulation is realized, the primary frequency modulation mainly maintains the power system in the power generation synchronous region to keep stable operation, the power generation frequency of the power system is stabilized at a stable value within a few seconds, namely the first time after disturbance or a special event occurs, and then the flywheel device is used for further adjustment, so that the stability of the power generation system is ensured.
Optionally, the power generation parameter is a power or voltage value.
In a second aspect, the present application provides a power generation regulating device based on flywheel energy storage, where the power generation regulating device includes a controller and a flywheel device; the flywheel device is connected with the power generation system, the controller is connected with the power generation system, and the controller is connected with the flywheel device; the power generation system is used for generating power; the flywheel device is used for adjusting the power generation parameters of the power generation system by changing the rotating speed; the controller is used for acquiring target power generation parameters and current power generation parameters of the power generation system; determining a power generation parameter difference between the current power generation parameter and the target power generation parameter; and controlling the rotating speed of the flywheel device according to the power generation parameter difference value so that the difference value between the power generation parameter of the power generation system and the target power generation parameter is smaller than a preset parameter threshold value.
Optionally, the controller is further configured to determine whether the power generation parameter difference is greater than a first preset value when the current power generation parameter is greater than the target power generation parameter; and if so, controlling the rotating speed of the flywheel device to be increased to a corresponding rotating speed so as to enable the difference value between the power generation parameter of the power generation system and the target power generation parameter to be smaller than a preset parameter threshold value.
Optionally, the controller is further configured to control the rotation speed of the flywheel device to increase by a first preset amplitude value, and acquire a current power generation parameter of the power generation system after the rotation speed is adjusted; judging whether the difference value between the adjusted current power generation parameter and the target power generation parameter is smaller than the preset parameter threshold value or not; if the difference value is smaller than the preset parameter threshold value, stopping the rotation speed adjustment; and if the difference is larger than the preset parameter threshold, the step of controlling the rotating speed of the flywheel device to increase by a first preset amplitude value is carried out.
Optionally, the controller is further configured to determine whether the power generation parameter difference is greater than a first preset value when the current power generation parameter is smaller than the target power generation parameter; and if so, controlling the rotating speed of the flywheel device to be reduced to a corresponding rotating speed so as to enable the difference value between the power generation parameter of the power generation system and the target power generation parameter to be smaller than a preset parameter threshold value.
Optionally, the controller is further configured to control the rotation speed of the flywheel device to decrease by a first preset amplitude value, and acquire a current power generation parameter of the power generation system after the rotation speed is adjusted; judging whether the difference value between the adjusted current power generation parameter and the target power generation parameter is smaller than the preset parameter threshold value or not; if the difference value is smaller than the preset parameter threshold value, stopping the rotation speed adjustment; and if the difference is larger than the preset parameter threshold, the step of controlling the rotating speed of the flywheel device to reduce a first preset amplitude value is carried out.
Optionally, the power generation regulating device further comprises a speed regulator, the controller is connected with the speed regulator, and the speed regulator is further connected with the power generation system;
the controller is also used for acquiring initial power generation parameters of the power generation system and determining the power difference of the speed regulator according to the initial power generation parameters and the target power generation parameters;
and the speed regulator is used for regulating the power generation system once according to the power difference so as to regulate the power generation parameters of the power generation system to be changed from the initial power generation parameters to the current power generation parameters.
In a third aspect, an embodiment of the present application provides an electronic device, including a controller and a memory, where the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the controller, the electronic device executes the method provided in the first aspect.
In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a computer program is stored, where the computer program runs the method provided in the first aspect as described above when being executed by a controller.
Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a flowchart of a power generation regulation method based on flywheel energy storage according to an embodiment of the present application;
fig. 2 is a block diagram of a power generation regulating device based on flywheel energy storage according to an embodiment of the present application;
fig. 3 is a block diagram of an electronic device according to an embodiment of the present disclosure.
Icon: 100-a power generation conditioning device; 110-a controller; 120-a flywheel device; 130-a speed governor; 200-a power generation system; 301-a processor; 302-a communication interface; 303-a memory; 304-communication bus.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
In order to solve the problem of instability of a power system, the embodiment of the application provides a power generation regulating method based on flywheel energy storage, the method is applied to a controller of power generation regulating equipment, and the power generation regulating equipment further comprises a flywheel device; the flywheel device is connected with the power generation system, the controller is connected with the power generation system, and the controller is connected with the flywheel device; referring to fig. 1, the method includes the following steps:
step S110: and acquiring target power generation parameters and current power generation parameters of the power generation system.
Wherein, the power generation parameter is a power or voltage value. The power generation system can be a mechanical power generation system, a wind power generation system and the like, such as a steam turbine prime mover, and main steam transmits steam impact power through a steam pipeline so that a steam turbine rotor obtains rotational kinetic energy. The wind power generation system has the power generation principle that wind energy is converted into mechanical power, then the mechanical power drives a rotor to rotate, and alternating current is finally output.
Step S120: and determining a power generation parameter difference value between the current power generation parameter and the target power generation parameter.
For example, if the power generation parameter is power, the current power generation parameter is 25W, and the target power generation parameter is 30W, the power generation parameter difference may be determined to be-5W.
Step S130: and controlling the rotating speed of the flywheel device according to the power generation parameter difference value so that the difference value between the power generation parameter of the power generation system and the target power generation parameter is smaller than a preset parameter threshold value.
The flywheel device is a rotational inertia energy storage device, can convert electric energy into kinetic potential energy and store the kinetic potential energy, is a physical energy storage device, and can be replaced by any device utilizing rotational inertia energy storage. When the flywheel device stores energy, external electric energy can be converted through the power converter to drive a motor in the flywheel device to operate and rotate, the motor drives a flywheel rotor to rotate at an accelerated speed until a set certain rotating speed is reached, in the process of accelerating rotation of the flywheel device, the flywheel device stores the electric energy in the form of kinetic energy, the energy storage process of converting the electric energy into mechanical kinetic energy is completed, the electric energy is stored in the flywheel device rotating at a high speed, and the energy storage process of the flywheel device is also the process of energy absorption of the flywheel. When the flywheel device with stored electric energy receives a control signal of energy release, the motor in the flywheel device is used as a power generation system, the flywheel rotating at high speed drags the motor to generate power, the current and voltage are output through the power converter, the energy release process from mechanical kinetic energy to electric energy conversion is completed, and the rotating speed of the flywheel device is continuously reduced in the energy release process, so that the flywheel device can realize the input and output of the electric energy by adjusting the rotating speed.
For example, if the current power generation parameter is 25W, the target power generation parameter is 30W, and it is determined that the power generation parameter difference is-5W, it indicates that the current power generation parameter of the power generation system is relatively low, and the flywheel device can be controlled to reduce the energy released by the rotation speed and convert the energy into electric energy, if the current power generation parameter is 35W, the target power generation parameter is 30W, and it is determined that the power generation parameter difference is 5W, it indicates that the current power generation parameter of the power generation system is relatively high, and it can be controlled to increase the rotation speed by the flywheel device to absorb the redundant electric energy of the power generation system, and finally the difference between the power generation parameter of the power generation system and the target power generation parameter is smaller than the preset parameter threshold, so as to ensure the stability of the power generation system.
In the implementation process, the power generation adjusting equipment acquires the current power generation parameters and the target power generation parameters of the power generation system through the controller, and controls the rotating speed of the flywheel device according to the power generation parameter difference determined by the current power generation parameters and the target power generation parameters, so that the energy storage state of the flywheel device is controlled, the power generation of the power generation system is adjusted, and the power generation stability of the power generation system is ensured.
The step of controlling the rotation speed of the flywheel device according to the power generation parameter difference can be implemented in two ways, as the rotation speed of the flywheel device can be adjusted to be increased to absorb electric energy, and the rotation speed of the flywheel device can be adjusted to be released.
In the first embodiment, the power generation parameters of the power generation system are too high, and the flywheel device is required to absorb electric energy so as to maintain the stability of power generation of the power generation system. Specifically, the magnitude relationship between the current power generation parameter and the target power generation parameter of the power generation system is determined first, the current power generation parameter and the target parameter can be directly compared, and the determination can also be performed according to the positive or negative of the power generation parameter difference, for example, if the power generation parameter difference is obtained by subtracting the target power generation parameter from the current power generation parameter, it can be determined whether the power generation parameter difference is a positive number or a negative number, if the power generation parameter difference is a positive number, it indicates that the current power generation parameter is greater than the target power generation parameter, and if the power generation parameter difference is a negative number, it indicates that the current power generation parameter is less than the target power generation parameter. When the current power generation parameter is judged to be larger than the target power generation parameter, whether the power generation parameter difference is larger than a first preset value or not can be continuously judged, if yes, the difference between the current power generation parameter of the power generation system and the target power generation parameter is too large, and the flywheel device is required to absorb partial electric energy of the power generation system, so that the rotating speed of the flywheel device can be controlled to be increased to the corresponding rotating speed, the flywheel device can absorb partial energy, and the difference between the power generation parameter of the power generation system and the target power generation parameter is smaller than a preset parameter threshold value.
When the rotating speed of the flywheel device is controlled to be increased to the corresponding rotating speed, the rotating speed of the flywheel device can be controlled to be increased by a first preset amplitude value, the current power generation parameter of the power generation system after the rotating speed is adjusted is obtained, whether the difference value between the adjusted current power generation parameter and the target power generation parameter is smaller than a preset parameter threshold value or not is judged, if the difference value is smaller than the preset parameter threshold value, the power generation system is kept in a stable power generation state, and therefore rotating speed adjustment can be stopped, otherwise, if the difference value is larger than the preset parameter threshold value, the step of controlling the rotating speed of the flywheel device to be increased by the first preset amplitude value can be carried out, and adjustment is continued until the power generation system is kept in the stable power generation state.
In the implementation process, when the current power generation parameter is greater than the target power generation parameter, the difference between the current power generation parameter and the target power generation parameter of the power generation system is too large, and then the flywheel device can be controlled to increase the wheel speed so as to absorb partial energy, thereby ensuring that the difference between the power generation parameter and the target power generation parameter of the power generation system is less than a preset parameter threshold value, and further ensuring the stability of power generation.
In the second embodiment, the power generation parameters of the power generation system are too low, and a certain amount of electric energy needs to be released through the flywheel device to maintain the stability of power generation of the power generation system. Specifically, the magnitude relationship between the current power generation parameter and the target power generation parameter of the power generation system is determined first, the current power generation parameter and the target parameter can be directly compared, and the determination can also be performed according to the positive or negative of the power generation parameter difference, for example, if the power generation parameter difference is obtained by subtracting the target power generation parameter from the current power generation parameter, it can be determined whether the power generation parameter difference is a positive number or a negative number, if the power generation parameter difference is a positive number, it indicates that the current power generation parameter is greater than the target power generation parameter, and if the power generation parameter difference is a negative number, it indicates that the current power generation parameter is less than the target power generation parameter. When the current power generation parameter is judged to be smaller than the target power generation parameter, whether the power generation parameter difference is larger than a first preset value or not can be continuously judged, if yes, the difference between the current power generation parameter of the power generation system and the target power generation parameter is too large, and the flywheel device is required to release part of electric energy to the power generation system, so that the rotating speed of the flywheel device can be controlled to be reduced to the corresponding rotating speed, the flywheel device can release part of the energy, and the difference between the power generation parameter of the power generation system and the target power generation parameter is smaller than a preset parameter threshold value.
When the rotating speed of the flywheel device is controlled to be reduced to the corresponding rotating speed, the rotating speed of the flywheel device can be controlled to be reduced by a first preset amplitude value, the current power generation parameter of the power generation system after the rotating speed is adjusted is obtained, whether the difference value between the adjusted current power generation parameter and the target power generation parameter is smaller than a preset parameter threshold value or not is judged, if the difference value is smaller than the preset parameter threshold value, the power generation system is kept in a stable power generation state, and therefore rotating speed adjustment can be stopped, otherwise, if the difference value is larger than the preset parameter threshold value, the step of controlling the rotating speed of the flywheel device to be reduced by the first preset amplitude value can be carried out, and adjustment is continued until the power generation system is kept in the stable power generation state.
In the implementation process, when the current power generation parameter is smaller than the target power generation parameter, the difference between the current power generation parameter and the target power generation parameter of the power generation system is too large, and then the flywheel device can be controlled to reduce the speed of the wheel so as to release part of energy, so that the difference between the power generation parameter and the target power generation parameter of the power generation system is smaller than a preset parameter threshold value, and then the stability of power generation can be ensured.
Optionally, the power generation regulating equipment further comprises a speed regulator, the controller is connected with the speed regulator, and the speed regulator is further connected with the power generation system; therefore, before the step of obtaining the target power generation parameter and the current power generation parameter of the power generation system, the primary frequency modulation may be performed through the speed regulator, specifically, the initial power generation parameter of the power generation system may be obtained first, the power difference of the speed regulator is determined according to the initial power generation parameter and the target power generation parameter, and then the speed regulator performs primary adjustment on the power generation system according to the power difference so as to adjust the power generation parameter of the power generation system to be changed from the initial power generation parameter to the current power generation parameter.
In the implementation process, the speed regulator can adjust the initial power generation parameters of the power generation system to the current power generation parameters, namely primary frequency modulation is realized, the primary frequency modulation mainly maintains the power system in the power generation synchronous region to keep stable operation, the power generation frequency of the power system is stabilized at a stable value within a few seconds, namely the first time after disturbance or a special event occurs, and then the flywheel device is used for further adjustment, so that the stability of the power generation system is ensured.
Based on the same inventive concept, a power generation regulating device based on flywheel energy storage is also provided in the embodiments of the present application, please refer to fig. 2, and fig. 2 is a block diagram of a power generation regulating device 100 provided in the embodiments of the present application. It should be understood that the power generation regulating device 100 corresponds to the above-mentioned embodiment of the method of fig. 1, and can perform various steps related to the embodiment of the method of fig. 1, and the specific functions of the power generation regulating device 100 can be referred to the above description, and the detailed description is appropriately omitted here to avoid redundancy.
Alternatively, the power generation adjusting apparatus 100 includes: a controller 110 and a flywheel device 120; the flywheel device 120 is connected with the power generation system 200, the controller 110 is connected with the power generation system 200, and the controller 110 is connected with the flywheel device 120;
the power generation system 200 is used for generating power;
a flywheel device 120 for adjusting the power generation parameters of the power generation system 200 by changing the rotation speed;
the controller 110 is configured to obtain a target power generation parameter and a current power generation parameter of the power generation system 200; determining a power generation parameter difference value between a current power generation parameter and a target power generation parameter; and controlling the rotating speed of the flywheel device 120 according to the power generation parameter difference value so that the difference value between the power generation parameter of the power generation system 200 and the target power generation parameter is smaller than a preset parameter threshold value.
Optionally, the controller 110 is further configured to determine whether the power generation parameter difference is greater than a first preset value when the current power generation parameter is greater than the target power generation parameter; if so, the rotation speed of the flywheel device 120 is controlled to be increased to the corresponding rotation speed, so that the difference between the power generation parameter of the power generation system 200 and the target power generation parameter is smaller than the preset parameter threshold.
Optionally, the controller 110 is further configured to control the rotation speed of the flywheel device 120 to increase by a first preset amplitude value, and acquire the current power generation parameter of the power generation system 200 after the rotation speed is adjusted; judging whether the difference value between the adjusted current power generation parameter and the target power generation parameter is smaller than a preset parameter threshold value or not; if the difference value is smaller than the preset parameter threshold value, stopping the rotation speed adjustment; if the difference is greater than the predetermined parameter threshold, the step of controlling the rotation speed of the flywheel device 120 to increase by the first predetermined amplitude value is performed.
Optionally, the controller 110 is further configured to determine whether the power generation parameter difference is greater than a first preset value when the current power generation parameter is smaller than the target power generation parameter; if so, the rotation speed of the flywheel device 120 is controlled to be reduced to the corresponding rotation speed, so that the difference between the power generation parameter of the power generation system 200 and the target power generation parameter is smaller than the preset parameter threshold.
Optionally, the controller 110 is further configured to control the rotation speed of the flywheel device 120 to decrease by a first preset amplitude value, and acquire the current power generation parameter of the power generation system 200 after the rotation speed is adjusted; judging whether the difference value between the adjusted current power generation parameter and the target power generation parameter is smaller than a preset parameter threshold value or not; if the difference value is smaller than the preset parameter threshold value, stopping the rotation speed adjustment; if the difference is greater than the predetermined parameter threshold, the step of controlling the rotation speed of the flywheel device 120 to decrease by the first predetermined amplitude value is performed.
Optionally, the power generation regulating device 100 further comprises a speed regulator 130, the controller 110 is connected with the speed regulator 130, and the speed regulator 130 is further connected with the power generation system 200; the controller 110 is further configured to obtain an initial power generation parameter of the power generation system 200, and determine a power difference of the speed regulator 130 according to the initial power generation parameter and the target power generation parameter; the governor 130 is used to make a primary adjustment to the power generation system 200 based on the power difference to adjust the power generation parameters of the power generation system 200 from the initial power generation parameters to the current power generation parameters.
Referring to fig. 3, fig. 3 is a block diagram of an electronic device according to an embodiment of the present disclosure, where the electronic device includes: at least one processor 301, at least one communication interface 302, at least one memory 303, and at least one communication bus 304. Wherein the communication bus 304 is used for realizing direct connection communication of these components, the communication interface 302 is used for communicating signaling or data with other node devices, and the memory 303 stores machine readable instructions executable by the processor 301. When the electronic device is in operation, the processor 301 communicates with the memory 303 via the communication bus 304, and the machine-readable instructions, when invoked by the processor 301, perform the power generation adjustment method described above.
The processor 301 may be an integrated circuit chip having signal processing capabilities. The Processor 301 may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. Which may implement or perform the various methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The Memory 303 may include, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Read Only Memory (EPROM), an electrically Erasable Read Only Memory (EEPROM), and the like.
It will be appreciated that the configuration shown in fig. 3 is merely illustrative and that the electronic device may include more or fewer components than shown in fig. 3 or have a different configuration than shown in fig. 3. The components shown in fig. 3 may be implemented in hardware, software, or a combination thereof. In the embodiment of the present application, the electronic device may be, but is not limited to, a dedicated detection device, a desktop, a notebook computer, a smart phone, a smart wearable device, and other physical devices.
The embodiment of the present application provides a readable storage medium, and when being executed by a processor, the computer program performs the method processes performed by the electronic device in the method embodiment shown in fig. 1.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the above-described device may refer to the corresponding process in the foregoing method, and will not be described in too much detail herein.
In summary, the embodiment of the present application provides a power generation adjusting method and device based on flywheel energy storage, which are applied to a controller of a power generation adjusting device, where the power generation adjusting device further includes a flywheel device; the flywheel device is connected with the power generation system, the controller is connected with the power generation system, and the controller is connected with the flywheel device; the method comprises the following steps: acquiring target power generation parameters and current power generation parameters of a power generation system; determining a power generation parameter difference value between a current power generation parameter and a target power generation parameter; and controlling the rotating speed of the flywheel device according to the power generation parameter difference value so that the difference value between the power generation parameter of the power generation system and the target power generation parameter is smaller than a preset parameter threshold value. The power generation adjusting equipment controls the rotating speed of the flywheel device according to the power generation parameter difference determined by the current power generation parameter and the target power generation parameter, so that the energy storage state of the flywheel device is controlled, the power generation of the power generation system is adjusted, and the power generation stability of the power generation system is ensured.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a division of one logic function, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
In addition, units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
Furthermore, the functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. The power generation adjusting method based on flywheel energy storage is characterized by being applied to a controller of power generation adjusting equipment, wherein the power generation adjusting equipment further comprises a flywheel device; the flywheel device is connected with a power generation system, the controller is connected with the power generation system, and the controller is connected with the flywheel device; the method comprises the following steps:
acquiring target power generation parameters and current power generation parameters of the power generation system;
determining a power generation parameter difference between the current power generation parameter and the target power generation parameter;
controlling the rotating speed of the flywheel device according to the power generation parameter difference value so that the difference value between the power generation parameter of the power generation system and the target power generation parameter is smaller than a preset parameter threshold value;
the step of controlling the rotation speed of the flywheel device according to the power generation parameter difference comprises the following steps:
when the current power generation parameter is larger than the target power generation parameter, judging whether the power generation parameter difference is larger than a first preset value;
if so, controlling the rotating speed of the flywheel device to be increased to a corresponding rotating speed so as to enable the difference value between the power generation parameter of the power generation system and the target power generation parameter to be smaller than a preset parameter threshold value;
the step of controlling the rotational speed of the flywheel device to increase to a corresponding rotational speed includes:
controlling the rotating speed of the flywheel device to increase by a first preset amplitude value, and acquiring the current power generation parameters of the power generation system after the rotating speed is adjusted;
judging whether the difference value between the adjusted current power generation parameter and the target power generation parameter is smaller than the preset parameter threshold value or not;
if the difference value is smaller than the preset parameter threshold value, stopping the rotation speed adjustment;
and if the difference is larger than the preset parameter threshold, the step of controlling the rotating speed of the flywheel device to increase by a first preset amplitude value is carried out.
2. The method of claim 1, wherein the step of controlling the rotational speed of the flywheel device based on the power generation parameter difference comprises:
when the current power generation parameter is smaller than the target power generation parameter, judging whether the power generation parameter difference is larger than a first preset value;
and if so, controlling the rotating speed of the flywheel device to be reduced to a corresponding rotating speed so as to enable the difference value between the power generation parameter of the power generation system and the target power generation parameter to be smaller than a preset parameter threshold value.
3. The method of claim 2, wherein the step of controlling the rotational speed of the flywheel device to decrease to a corresponding rotational speed comprises: controlling the rotating speed of the flywheel device to reduce by a first preset amplitude value, and acquiring the current power generation parameters of the power generation system after the rotating speed is adjusted;
judging whether the difference value between the adjusted current power generation parameter and the target power generation parameter is smaller than the preset parameter threshold value or not;
if the difference value is smaller than the preset parameter threshold value, stopping the rotation speed adjustment;
and if the difference is larger than the preset parameter threshold, the step of controlling the rotating speed of the flywheel device to reduce a first preset amplitude value is carried out.
4. The method of claim 1, wherein the power generation regulating device further comprises a governor, the controller being connected to the governor, the governor also being connected to the power generation system;
before the step of obtaining the target power generation parameter and the current power generation parameter of the power generation system, the method further includes:
acquiring initial power generation parameters of the power generation system, and determining a power difference of the speed regulator according to the initial power generation parameters and the target power generation parameters;
and the speed regulator regulates the power generation system once according to the power difference so as to regulate the power generation parameters of the power generation system to be changed from the initial power generation parameters to the current power generation parameters.
5. The method of claim 1, wherein the power generation parameter is a power or voltage value.
6. The power generation adjusting device based on flywheel energy storage is characterized by comprising a controller and a flywheel device; the flywheel device is connected with a power generation system, the controller is connected with the power generation system, and the controller is connected with the flywheel device;
the power generation system is used for generating power;
the flywheel device is used for adjusting the power generation parameters of the power generation system by changing the rotating speed;
the controller is used for acquiring target power generation parameters and current power generation parameters of the power generation system; determining a power generation parameter difference between the current power generation parameter and the target power generation parameter; controlling the rotating speed of the flywheel device according to the power generation parameter difference value so that the difference value between the power generation parameter of the power generation system and the target power generation parameter is smaller than a preset parameter threshold value;
the step of controlling the rotation speed of the flywheel device according to the power generation parameter difference comprises the following steps:
when the current power generation parameter is larger than the target power generation parameter, judging whether the power generation parameter difference is larger than a first preset value;
if so, controlling the rotating speed of the flywheel device to be increased to a corresponding rotating speed so as to enable the difference value between the power generation parameter of the power generation system and the target power generation parameter to be smaller than a preset parameter threshold value;
the step of controlling the rotational speed of the flywheel device to increase to a corresponding rotational speed includes:
controlling the rotating speed of the flywheel device to increase by a first preset amplitude value, and acquiring the current power generation parameters of the power generation system after the rotating speed is adjusted;
judging whether the difference value between the adjusted current power generation parameter and the target power generation parameter is smaller than the preset parameter threshold value or not;
if the difference value is smaller than the preset parameter threshold value, stopping the rotation speed adjustment;
and if the difference is larger than the preset parameter threshold, the step of controlling the rotating speed of the flywheel device to increase by a first preset amplitude value is carried out.
7. An electronic device comprising a controller and a memory storing computer readable instructions that, when executed by the controller, perform the method of any of claims 1 to 5.
8. A readable storage medium, on which a computer program is stored, which, when being executed by a controller, carries out the method according to any one of claims 1 to 5.
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