CN113007039B - Wind power plant inertia response testing method and device - Google Patents
Wind power plant inertia response testing method and device Download PDFInfo
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- CN113007039B CN113007039B CN202110293273.XA CN202110293273A CN113007039B CN 113007039 B CN113007039 B CN 113007039B CN 202110293273 A CN202110293273 A CN 202110293273A CN 113007039 B CN113007039 B CN 113007039B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
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Abstract
The invention provides a wind power plant inertia response testing method and device, wherein the method comprises the following steps: constructing a power system simulation model containing a wind power plant according to preset alternating current system parameters; initializing the simulation model according to a preset wind power plant active power control mode and a preset power level; carrying out a wind power plant inertia response simulation test on the initialized simulation model according to a group of preset alternating current system frequency change parameters to obtain a simulation result; judging whether the simulation result meets the preset requirement or not; if not, exiting the test process; if the set of the frequency variation parameters meets the preset requirement, acquiring a next set of preset alternating current system frequency variation parameters, performing a wind power plant inertia response simulation test on the initialized simulation model according to the next set of the frequency variation parameters, and returning to the step of judging whether the simulation result meets the preset requirement until all the preset alternating current system frequency variation parameter sets are used for simulation. The method can test the inertia response of the wind power plant with low cost and high efficiency.
Description
Technical Field
The invention relates to the technical field of wind power plant inertia response testing, in particular to a wind power plant inertia response testing method and device.
Background
With the larger and larger scale of the accessed wind power plant, the networking control function of the wind power plant is more and more important, and the inertia response is an important part of the wind power plant. At present, the condition of a large-scale wind power plant grid-related control performance physical test is not available, so that the inertia response of a wind turbine generator is difficult to test and evaluate, the wind power plant is difficult to access the performance of a power grid, and the safe operation of the power grid is difficult to maintain effectively.
Disclosure of Invention
The invention aims to provide a method and a device for testing the inertia response characteristic of a wind power plant, so that the inertia response effect of the wind power plant can be evaluated according to the test result, and the wind power plant can be connected to the performance of a power grid and the safe operation of the power grid can be maintained.
In a first aspect, an embodiment of the present invention provides a wind farm inertia response testing method, including:
s1, acquiring a set of preset alternating current system parameters, and constructing a power system simulation model containing a wind power plant according to the preset alternating current system parameters;
s2, initializing the power system simulation model containing the wind power plant according to a preset wind power plant active power control mode and power level;
s3, acquiring a group of preset alternating current system frequency change parameters, and performing a wind power plant inertia response simulation test on the initialized simulation model containing the wind power plant electric power system according to the group of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result;
s4, judging whether the wind power plant inertia response simulation result meets a preset requirement or not;
s5, if not, exiting the test process;
s6, if yes, judging whether all the preset alternating current system frequency change parameter sets are used for simulation;
and S7, if not, acquiring the next group of preset alternating current system frequency change parameters, performing a wind power plant inertia response simulation test on the initialized power system simulation model containing the wind power plant according to the next group of preset alternating current system frequency change parameters, and returning to the step of judging whether the wind power plant inertia response simulation result meets the preset requirements or not until all the preset alternating current system frequency change parameter groups are used for simulation.
Further, the wind farm inertia response testing method further includes:
if all the preset alternating current system frequency change parameter groups are used for simulation, judging whether all the preset wind power plant active power control modes and power levels are used for initializing the power system simulation model containing the wind power plant;
if not, acquiring a next preset wind power plant active power control mode and power level, initializing the power system simulation model containing the wind power plant according to the next preset wind power plant active power control mode and power level, returning to acquire a group of preset alternating current system frequency change parameters, and performing a wind power plant inertia response simulation test on the initialized power system simulation model containing the wind power plant according to the group of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result until all preset wind power plant active power control modes and power levels are used for initializing the power system simulation model containing the wind power plant.
Further, the wind farm inertia response testing method further includes:
if all the preset active power control modes and power levels of the wind power plant are used for initializing the power system simulation model containing the wind power plant, judging whether all the sets of alternating current system parameters are used for constructing the power system simulation model containing the wind power plant;
if yes, exiting the test process;
if not, acquiring the next set of preset alternating current system parameters, constructing a power system simulation model containing the wind power plant according to the next set of preset alternating current system parameters, and returning to the step of initializing the power system simulation model containing the wind power plant according to a preset wind power plant active power control mode and power level until all sets of alternating current system parameters are used for constructing the power system simulation model containing the wind power plant.
Further, the active power control mode of the wind power plant is a power limited mode or a power unlimited mode.
Further, initializing the power system simulation model including the wind farm according to a preset wind farm active power control mode and power level, specifically:
and initializing the power system simulation model containing the wind power plant according to the preset wind power plant active power control mode which is a power unlimited mode and the power level which is 0.2pu-0.3 pu.
Further, if all the preset alternating current system frequency change parameter sets are used for simulation, acquiring a next preset wind farm active power control mode and power level, initializing the power system simulation model including the wind farm according to the next preset wind farm active power control mode and power level, returning to acquire a group of preset alternating current system frequency change parameters, performing a wind farm inertia response simulation test on the initialized simulation model including the wind farm power system according to the group of preset alternating current system frequency change parameters, and acquiring a wind farm inertia response simulation result until all the preset wind farm active power control modes and power levels are used for initializing the power system simulation model including the wind farm, which specifically includes:
according to the steps S2-S7, a wind power plant inertia response test is completed, wherein the wind power plant active power control mode is a power unlimited mode, and the power level is 0.9pu-1.0 pu;
according to the steps S2-S7, the test of the wind power plant inertia response function is completed, wherein the wind power plant active power control mode is a power limited mode, and the power level is 0.2 pu;
according to the steps S2-S7, a wind power plant inertia response test with the wind power plant active power control mode being a power limited mode and the power level being 0.4pu is completed;
according to the steps S2-S7, a wind power plant inertia response test with the wind power plant active power control mode being a power limited mode and the power level being 0.6pu is completed;
and completing a wind power plant inertia response test with the wind power plant active power control mode being a power limited mode and the power level being 0.8pu according to the steps S2-S7.
Further, the evaluation indexes of the wind power plant inertia response simulation result include, but are not limited to, wind power plant active power output variation, active power output deviation, wind power plant active current, inertia response time and alternating current system frequency.
Further, the ac system parameters include system capacity and system impedance.
In a second aspect, an embodiment of the present invention provides a wind farm inertia response testing apparatus, including:
the model building module is used for obtaining a set of preset alternating current system parameters and building a power system simulation model containing a wind power plant according to the preset alternating current system parameters;
the initialization module is used for initializing the power system simulation model containing the wind power plant according to a preset wind power plant active power control mode and power level;
the inertia response simulation test module is used for acquiring a group of preset alternating current system frequency change parameters, and performing a wind power plant inertia response simulation test on the initialized simulation model containing the wind power plant electric power system according to the group of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result;
the first judgment module is used for judging whether the wind power plant inertia response simulation result meets a preset requirement or not;
the exit module is used for exiting the test flow if the test flow does not meet the requirement;
the second judgment module is used for judging whether all the preset alternating current system frequency change parameter groups are used for simulation if the preset alternating current system frequency change parameter groups are met;
and the return module is used for acquiring the next group of preset alternating current system frequency change parameters if the wind power plant inertia response simulation test is not performed on the initialized power system simulation model containing the wind power plant according to the next group of preset alternating current system frequency change parameters, and returning to the step of judging whether the wind power plant inertia response simulation result meets the preset requirement or not until all the preset alternating current system frequency change parameter groups are used for simulation.
Further, the wind farm inertia response testing device further comprises:
the second returning module is used for judging whether all the preset active power control modes and power levels of the wind power plant are used for initializing the power system simulation model containing the wind power plant if all the preset alternating current system frequency change parameter groups are used for simulation; if not, acquiring a next preset wind power plant active power control mode and power level, initializing the power system simulation model containing the wind power plant according to the next preset wind power plant active power control mode and power level, returning to acquire a group of preset alternating current system frequency change parameters, and performing a wind power plant inertia response simulation test on the initialized power system simulation model containing the wind power plant according to the group of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result until all preset wind power plant active power control modes and power levels are used for initializing the power system simulation model containing the wind power plant.
Compared with the prior art, the wind power plant inertia response function evaluation method provided by the embodiment of the invention comprises the following steps: acquiring a set of preset alternating current system parameters, and constructing a power system simulation model containing a wind power plant according to the preset alternating current system parameters; initializing the power system simulation model containing the wind power plant according to a preset wind power plant active power control mode and power level; acquiring a group of preset alternating current system frequency change parameters, and performing a wind power plant inertia response simulation test on the initialized simulation model containing the wind power plant electric power system according to the group of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result; judging whether the wind power plant inertia response simulation result meets a preset requirement or not; if not, exiting the test process; if yes, judging whether all preset alternating current system frequency change parameter groups are used for simulation; if not, acquiring a next group of preset alternating current system frequency change parameters, performing a wind power plant inertia response simulation test on the initialized simulation model containing the wind power plant electric power system according to the next group of preset alternating current system frequency change parameters, and returning to the step of judging whether an inertia response simulation result meets preset requirements or not until all preset alternating current system frequency change parameter groups are used for simulation. Through the design, the wind power plant inertia response test device can test the wind power plant inertia response, and is further favorable for accessing the wind control electric field to the power grid performance and maintaining the safe operation of the power grid. In addition, the inertia response testing method is low in cost and high in efficiency.
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In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a wind farm inertia response testing method according to an embodiment of the present invention;
FIG. 2 is a flow chart of a wind farm inertia response testing method according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a wind farm inertia response testing apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be understood that the step numbers used herein are for convenience of description only and are not intended as limitations on the order in which the steps are performed.
It is to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The terms "comprises" and "comprising" indicate the presence of the described features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
The term "and/or" refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the present invention provides a wind farm inertia response testing method, including:
s1, acquiring a set of preset alternating current system parameters, and constructing a power system simulation model containing a wind power plant according to the preset alternating current system parameters.
In the embodiment of the invention, it should be understood that a large number of parameters are needed for constructing the power system simulation model containing the wind farm, and the ac system parameters are only a small part of parameters in the power system simulation model containing the wind farm, and are especially important for the test method of the invention, so that a person skilled in the art can construct the model according to the common knowledge for constructing the power system containing the wind farm even though the invention does not list all the model construction parameters.
In the embodiment of the invention, the power system simulation model comprising the wind power plant is constructed on a hardware-in-loop real-time simulation platform. The alternating current system parameters are set according to the required preset parameters, such as system capacity and system impedance. The communication system can be in the form of an equivalent system or a detailed model.
And S2, initializing the power system simulation model containing the wind power plant according to a preset wind power plant active power control mode and power level.
In the embodiment of the invention, the active power control mode of the wind power plant is a power limited mode or a power unlimited mode, the power level is set according to actual requirements, and the invention is not limited herein.
In the embodiment of the present invention, it should be noted that initializing the power system simulation model including the wind farm according to a preset wind farm active power control mode and a preset power level is to set an operating state of the wind farm in the simulation model.
S3, acquiring a group of preset alternating current system frequency change parameters, and performing a wind power plant inertia response simulation test on the initialized simulation model containing the wind power plant electric power system according to the group of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result;
and S4, judging whether the wind power plant inertia response simulation result meets the preset requirement.
In the embodiment of the invention, the wind farm inertia response simulation result includes, but is not limited to, wind farm active power output variation, inertia response time, alternating current system frequency and the like.
S5, if not, exiting the test process;
s6, if yes, judging whether all the preset alternating current system frequency change parameter sets are used for simulation;
and S7, if not, acquiring the next group of preset alternating current system frequency change parameters, performing a wind power plant inertia response simulation test on the initialized power system simulation model containing the wind power plant according to the next group of preset alternating current system frequency change parameters, and returning to the step of judging whether the wind power plant inertia response simulation result meets the preset requirements or not until all the preset alternating current system frequency change parameter groups are used for simulation.
Compared with the prior art, the method can test the inertia response of the wind power plant, and is further favorable for accessing the wind power plant to the performance of the power grid and maintaining the safe operation of the power grid. In addition, the inertia response testing method provided by the invention has the advantages of low cost and high efficiency.
Referring to fig. 2, in order to test inertia response under multiple working conditions to further more comprehensively evaluate a wind farm inertia response effect, as an example of the embodiment of the present invention, the wind farm inertia response test method further includes:
if all the preset alternating current system frequency change parameter groups are used for simulation, judging whether all the preset wind power plant active power control modes and power levels are used for initializing the power system simulation model containing the wind power plant;
if not, acquiring a next preset wind power plant active power control mode and power level, initializing the power system simulation model containing the wind power plant according to the next preset wind power plant active power control mode and power level, returning to acquire a group of preset alternating current system frequency change parameters, and performing a wind power plant inertia response simulation test on the initialized power system simulation model containing the wind power plant according to the group of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result until all preset wind power plant active power control modes and power levels are used for initializing the power system simulation model containing the wind power plant.
In order to test the inertia response of the wind farm under different system conditions, as an example of the embodiment of the present invention, the method for testing the inertia response of the wind farm further includes:
if all the preset active power control modes and power levels of the wind power plant are used for initializing the power system simulation model containing the wind power plant, judging whether all the sets of alternating current system parameters are used for constructing the power system simulation model containing the wind power plant;
if yes, exiting the test process;
if not, acquiring the next set of preset alternating current system parameters, constructing a power system simulation model containing the wind power plant according to the next set of preset alternating current system parameters, and returning to the step of initializing the power system simulation model containing the wind power plant according to a preset wind power plant active power control mode and power level until all sets of alternating current system parameters are used for constructing the power system simulation model containing the wind power plant.
As an example of the embodiment of the present invention, initializing the power system simulation model including the wind farm according to a preset wind farm active power control mode and a preset power level, specifically:
and initializing the power system simulation model containing the wind power plant according to the preset active power control mode of the wind power plant as a power unlimited mode and the power level of 0.2pu-0.3 pu.
As an example of the embodiment of the present invention, if all the preset ac system frequency variation parameter sets are used for simulation, the next preset active power control mode and power level of the wind farm are obtained, initializing the power system simulation model containing the wind power plant according to the next preset wind power plant active power control mode and power level, returning to obtain a group of preset alternating current system frequency change parameters, performing a wind power plant inertia response simulation test on the initialized simulation model containing the wind power plant electric power system according to the set of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result until all the preset wind power plant active power control modes and power averages are used for initializing the power system simulation model containing the wind power plant, and the method specifically comprises the following steps of:
according to the steps S2-S7, a wind power plant inertia response test is completed, wherein the wind power plant active power control mode is a power unlimited mode, and the power level is 0.9pu-1.0 pu;
according to the steps S2-S7, the test of the wind power plant inertia response function is completed, wherein the wind power plant active power control mode is a power limited mode, and the power level is 0.2 pu;
according to the steps S2-S7, a wind power plant inertia response test with the wind power plant active power control mode being a power limited mode and the power level being 0.4pu is completed;
according to the steps S2-S7, a wind power plant inertia response test with the wind power plant active power control mode being a power limited mode and the power level being 0.6pu is completed;
and completing a wind power plant inertia response test with the wind power plant active power control mode being a power limited mode and the power level being 0.8pu according to the steps S2-S7.
In order to test inertia response under different system working conditions, in specific implementation, a common test flow is as follows:
(1) firstly, a set of alternating current system parameters are set, so that a power system simulation model containing a wind power plant is constructed according to the set of alternating current system parameters. And then, the wind turbine generator in the wind power plant is connected to the grid, the wind turbine generator/wind power plant inertia response related control function enabling is set, and corresponding inertia response observed quantities such as wind power plant active power, alternating current system frequency and the like are added.
(2) And setting the active power control of the wind power plant to be in a power unlimited mode, wherein the active power level is 0.2pu-0.3pu, so as to initialize the power system simulation model containing the wind power plant.
(3) Setting a first group of alternating current system frequency change parameters to enable the power system simulation model containing the wind power plant to carry out a wind power plant inertia response simulation test according to the group of alternating current system frequency change parameters, and calculating to obtain an inertia response simulation result; judging whether a preset requirement is met or not according to the inertia response simulation result; and if the preset requirements are met, testing whether the inertia response under the frequency change parameters of other alternating current systems is correct by adopting the next group of alternating current system frequency change parameters until all alternating current system frequency change parameter group tests are finished. If not, exiting the test flow;
(4) setting the active power control of the wind power plant to be in a power unlimited mode, setting the active power level to be 0.9pu-1.0pu, and carrying out the inertia response test again according to the step (3).
(5) And setting the active power control of the wind power plant to be in a power limited mode, and respectively carrying out inertia response test tests again according to the step (3) under the conditions that the active power levels are 0.2pu, 0.4pu, 0.6pu and 0.8 pu.
(6) Setting the next set of alternating current system parameters, constructing a power system simulation model containing the wind power plant again according to the set of alternating current system parameters, carrying out grid connection on the wind turbine generator in the wind power plant, and repeating the steps (2) to (5) after setting the inertia response related control function enabling of the wind turbine generator/the wind power plant until the evaluation test of all the alternating current system parameters is completed, so that the test is finished.
Example 2:
referring to fig. 3, an embodiment of the present invention provides a wind farm inertia response testing apparatus, including:
the model building module 1 is used for obtaining a set of preset alternating current system parameters and building a power system simulation model containing a wind power plant according to the preset alternating current system parameters;
the initialization module 2 is used for initializing the power system simulation model containing the wind power plant according to a preset wind power plant active power control mode and power level;
the inertia response simulation module 3 is used for acquiring a group of preset alternating current system frequency change parameters, and performing a wind power plant inertia response simulation test on the initialized simulation model containing the wind power plant electric power system according to the group of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result;
the first judgment module 4 is used for judging whether the wind power plant inertia response simulation result meets a preset requirement or not;
the exit module 5 is used for exiting the test flow if the test flow does not meet the requirement;
the second judging module 6 is used for judging whether all the preset alternating current system frequency change parameter groups are used for simulation if the preset alternating current system frequency change parameter groups are met;
and the returning module 7 is used for obtaining the next group of preset alternating current system frequency change parameters if the wind power plant inertia response simulation test is not performed on the initialized power system simulation model containing the wind power plant according to the next group of preset alternating current system frequency change parameters, and returning to the step of judging whether the wind power plant inertia response simulation result meets the preset requirement or not until all the preset alternating current system frequency change parameter groups are used for simulation.
As an example of the embodiment of the present invention, the device for testing response of inertia of a ground wind farm further includes:
the second returning module is used for judging whether all the preset active power control modes and power levels of the wind power plant are used for initializing the power system simulation model containing the wind power plant if all the preset alternating current system frequency change parameter groups are used for simulation; if not, acquiring a next preset wind power plant active power control mode and power level, initializing the power system simulation model containing the wind power plant according to the next preset wind power plant active power control mode and power level, returning to acquire a group of preset alternating current system frequency change parameters, and performing a wind power plant inertia response simulation test on the initialized power system simulation model containing the wind power plant according to the group of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result until all preset wind power plant active power control modes and power levels are used for initializing the power system simulation model containing the wind power plant.
It should be noted that, all or part of the flow in the method according to the above embodiments of the present invention may also be implemented by a computer program instructing related hardware, where the computer program may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above embodiments of the method may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be further noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A wind power plant inertia response testing method is characterized by comprising the following steps:
s1, acquiring a set of preset alternating current system parameters, and constructing a power system simulation model containing a wind power plant according to the preset alternating current system parameters;
s2, initializing the power system simulation model containing the wind power plant according to a preset wind power plant active power control mode and power level;
s3, acquiring a group of preset alternating current system frequency change parameters, and performing a wind power plant inertia response simulation test on the initialized simulation model containing the wind power plant electric power system according to the group of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result;
s4, judging whether the wind power plant inertia response simulation result meets a preset requirement or not;
s5, if not, exiting the test process;
s6, if yes, judging whether all the preset alternating current system frequency change parameter sets are used for simulation;
and S7, if not, acquiring the next group of preset alternating current system frequency change parameters, performing a wind power plant inertia response simulation test on the initialized power system simulation model containing the wind power plant according to the next group of preset alternating current system frequency change parameters, and returning to the step of judging whether the wind power plant inertia response simulation result meets the preset requirements or not until all the preset alternating current system frequency change parameter groups are used for simulation.
2. The wind farm inertia response test method of claim 1, further comprising:
if all the preset alternating current system frequency change parameter groups are used for simulation, judging whether all the preset wind power plant active power control modes and power levels are used for initializing the power system simulation model containing the wind power plant;
if not, acquiring a next preset wind power plant active power control mode and power level, initializing the power system simulation model containing the wind power plant according to the next preset wind power plant active power control mode and power level, returning to acquire a group of preset alternating current system frequency change parameters, and performing a wind power plant inertia response simulation test on the initialized power system simulation model containing the wind power plant according to the group of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result until all preset wind power plant active power control modes and power levels are used for initializing the power system simulation model containing the wind power plant.
3. The wind farm inertia response test method of claim 2, further comprising:
if all the preset active power control modes and power levels of the wind power plant are used for initializing the power system simulation model containing the wind power plant, judging whether all the alternating current system parameter sets are used for constructing the power system simulation model containing the wind power plant;
if yes, exiting the test process;
if not, acquiring the next set of preset alternating current system parameters, constructing a power system simulation model containing the wind power plant according to the next set of preset alternating current system parameters, and returning to the step of initializing the power system simulation model containing the wind power plant according to a preset wind power plant active power control mode and power level until all sets of alternating current system parameters are used for constructing the power system simulation model containing the wind power plant.
4. The wind farm inertia response test method of claim 3, wherein the wind farm active power control mode is a power limited mode or a power unlimited mode.
5. The wind farm inertia response test method according to claim 4, wherein the power system simulation model including the wind farm is initialized according to a preset wind farm active power control mode and power level, specifically:
and initializing the power system simulation model containing the wind power plant according to the preset active power control mode of the wind power plant, which is a power unlimited mode, and the power level of the power system is 0.2pu-0.3 pu.
6. The wind farm inertia response testing method according to claim 5, wherein if all the preset alternating current system frequency variation parameter sets are used for simulation, a next preset wind farm active power control mode and power level are obtained, the power system simulation model including the wind farm is initialized according to the next preset wind farm active power control mode and power level, a set of preset alternating current system frequency variation parameters is obtained in a return mode, a wind farm inertia response simulation test is performed on the initialized simulation model including the wind farm power system according to the set of preset alternating current system frequency variation parameters, and a wind farm inertia response simulation result is obtained until all the preset wind farm active power control modes and power levels are used for initializing the power system simulation model including the wind farm, the method specifically comprises the following steps:
according to the steps S2-S7, a wind power plant inertia response test is completed, wherein the wind power plant active power control mode is a power unlimited mode, and the power level is 0.9pu-1.0 pu;
according to the steps S2-S7, a wind power plant inertia response test is completed, wherein the wind power plant active power control mode is a power limited mode, and the power level is 0.2 pu;
according to the steps S2-S7, a wind power plant inertia response test with the wind power plant active power control mode being a power limited mode and the power level being 0.4pu is completed;
according to the steps S2-S7, a wind power plant inertia response test with the wind power plant active power control mode being a power limited mode and the power level being 0.6pu is completed;
and completing a wind power plant inertia response test with the wind power plant active power control mode being a power limited mode and the power level being 0.8pu according to the steps S2-S7.
7. The wind farm inertia response test method according to any one of claims 1 to 6, wherein the evaluation indexes of the wind farm inertia response simulation result include, but are not limited to, wind farm active power output variation, active power output deviation, wind farm active current, inertia response time, and alternating current system frequency.
8. A wind farm inertia response test method according to any of claims 1-6, wherein the AC system parameters comprise system capacity and system impedance.
9. A wind farm inertia response testing device is characterized by comprising:
the model building module is used for obtaining a set of preset alternating current system parameters and building a power system simulation model containing a wind power plant according to the preset alternating current system parameters;
the initialization module is used for initializing the power system simulation model containing the wind power plant according to a preset wind power plant active power control mode and power level;
the inertia response simulation test module is used for acquiring a group of preset alternating current system frequency change parameters, and performing a wind power plant inertia response simulation test on the initialized simulation model containing the wind power plant electric power system according to the group of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result;
the first judgment module is used for judging whether the wind power plant inertia response simulation result meets a preset requirement or not;
the exit module is used for exiting the test flow if the test flow does not meet the requirement;
the second judgment module is used for judging whether all the preset alternating current system frequency change parameter groups are used for simulation if the preset alternating current system frequency change parameter groups are met;
and the return module is used for acquiring the next group of preset alternating current system frequency change parameters if the wind power plant inertia response simulation test is not performed on the initialized power system simulation model containing the wind power plant according to the next group of preset alternating current system frequency change parameters, and returning to the step of judging whether the wind power plant inertia response simulation result meets the preset requirement or not until all the preset alternating current system frequency change parameter groups are used for simulation.
10. The wind farm inertia response testing device of claim 9, further comprising:
the second returning module is used for judging whether all the preset active power control modes and power levels of the wind power plant are used for initializing the power system simulation model containing the wind power plant if all the preset alternating current system frequency change parameter groups are used for simulation; if not, acquiring a next preset wind power plant active power control mode and power level, initializing the power system simulation model containing the wind power plant according to the next preset wind power plant active power control mode and power level, returning to acquire a group of preset alternating current system frequency change parameters, and performing a wind power plant inertia response simulation test on the initialized power system simulation model containing the wind power plant according to the group of preset alternating current system frequency change parameters to obtain a wind power plant inertia response simulation result until all preset wind power plant active power control modes and power levels are used for initializing the power system simulation model containing the wind power plant.
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