CN114123321A - New energy grid-connected test system - Google Patents

New energy grid-connected test system Download PDF

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CN114123321A
CN114123321A CN202111383770.5A CN202111383770A CN114123321A CN 114123321 A CN114123321 A CN 114123321A CN 202111383770 A CN202111383770 A CN 202111383770A CN 114123321 A CN114123321 A CN 114123321A
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new energy
testing
module
test
management
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王钤
赵艳军
唐景星
陶然
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Guangdong Power Grid Co Ltd
Electric Power Research Institute of Guangdong Power Grid Co Ltd
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Guangdong Power Grid Co Ltd
Electric Power Research Institute of Guangdong Power Grid Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381Dispersed generators
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20The dispersed energy generation being of renewable origin
    • H02J2300/28The renewable source being wind energy

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  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention discloses a new energy grid-connected test system, which comprises: the new energy resource operation control mobile test system comprises a frequency signal generation module and a high-precision data acquisition module which are connected, the new energy resource operation control mobile test system calls the frequency signal generation module and the high-precision data acquisition module to carry out automatic grid-connected test according to the received test task and outputs a test result, and further comprises a test result judgment module which is used for receiving the test result, and performing quality detection on the test result according to the diagnosis model in the test result judging module, and outputting the judging result. And the new energy grid connection testing efficiency is improved.

Description

New energy grid-connected test system
Technical Field
The invention relates to the technical field of new energy power station testing, in particular to a new energy grid-connected testing system.
Background
In the prior art, an expert and scholars at home and abroad deeply research a new energy grid-connected test system, in particular to a wind turbine generator grid-connected performance test system based on an industrial personal computer, a photovoltaic power station grid-connected remote test method and system based on the internet, a wind and light combined power generation system grid-connected performance test method and the like, which are provided by patent CN201220658292.4, patent CN201611178306.1 and patent CN 201510907106.4. However, the above techniques have the problems of single test system and low degree of integration and automation. When a new energy power station is subjected to grid-connected test, full automation of primary frequency modulation, Automatic Generation Control (AGC) and Automatic Voltage Control (AVC) test processes cannot be realized, time and labor are consumed, the requirement of rapid development of new energy on quality detection capability cannot be met, and methods of a test system cannot be unified for different types of new energy power stations.
Disclosure of Invention
The invention aims to provide a new energy grid-connected test system to realize full-automatic setting of new energy grid connection and solve the problem that the test system cannot carry out unified test due to testing of different types of new energy power stations.
In order to achieve the above object, the present invention provides a new energy grid-connected testing system, including: the new energy testing and managing system comprises a new energy testing and managing platform and a new energy operation control mobile testing system, wherein the new energy testing and managing platform is connected with the new energy operation control mobile testing system;
the new energy testing management platform is used for selecting a testing template to establish a testing task and transmitting the testing task to the new energy operation control mobile testing system, and the new energy operation control mobile testing system receives the testing task, generates a judgment result and transmits the judgment result to the new energy testing management platform;
the new energy operation control mobile test system comprises a frequency signal generation module and a high-precision data acquisition module, wherein the frequency signal generation module is connected with the high-precision data acquisition module;
the new energy operation control mobile test system further comprises a test result judgment module, wherein the test result judgment module is used for receiving the test result, carrying out quality detection on the test result according to the diagnosis model in the test result judgment module, and outputting the judgment result.
Preferably, the new energy test management platform comprises a model management module and a test task management module, the model management module is connected with the test task management module, the model management module is used for summarizing new energy model warehouses uploaded by all mobile test systems and establishing a new energy model management warehouse, and the test task management module is used for establishing the test task after successfully matching the new energy electric field model to be tested with the new energy model management warehouse.
Preferably, the new energy test management platform further comprises a test standard management module, the test standard management module is connected with the test task management module, and the test standard management module is used for providing templated test content management, automated test flow management and customized test standard management for the test task management module.
Preferably, the new energy test management platform further includes a determination result management module, and the determination result management module is respectively connected to the test task management module and the new energy operation control mobile test system, and is configured to receive the determination result, perform intelligent analysis on the determination result, and manage a determination report.
Preferably, the mobile test system for controlling new energy operation further comprises a test task synchronous management module, a test task execution module and a test result judgment module, wherein the test task synchronous management module is connected with the test task execution module, the test task execution module is connected with the test result judgment module, and the test task synchronous management module is used for receiving the test task, monitoring the test process and transmitting test items which do not pass the test back to the new energy test management platform.
Preferably, the test task execution module is connected to the frequency signal generation module, the test task execution module outputs a frequency instruction for detecting a signal that generates a frequency change in the test task, and the frequency signal generation module is configured to receive the frequency instruction and start a frequency modulation dynamic performance test.
Preferably, the new energy operation control mobile test system further includes a determination report generation module and a determination result reporting module, the determination report generation module is connected to the test result determination module, the determination report generation module is connected to the determination result reporting module, and the determination result reporting module is connected to the determination result management module.
Preferably, the new energy grid-connected test system further comprises an electric field module to be tested, the electric field module to be tested is connected with the new energy operation control mobile test system, and the electric field module to be tested is connected with the new energy operation control mobile test system through automatic power generation control.
Preferably, the new energy operation control mobile test system further comprises a new energy electric field data access module, the new energy electric field data access module is connected with the electric field module to be tested, and the new energy electric field data access module adopts a dual-channel redundancy access mode.
Preferably, the new energy test management platform further includes a system interface module, the system interface module is used for interconnecting with the new energy operation control mobile test system, and the system interface module is used for providing an interface for sample data transmission.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a new energy grid-connected test system which comprises a new energy test management platform and a new energy operation control mobile test system, wherein the new energy operation control mobile test system receives a test task and calls a frequency signal generation module and a high-precision data acquisition module to perform automatic grid-connected test and output a test result according to the test task issued by the new energy test management platform, and the new energy operation control mobile test system also comprises a test result judgment module which is used for performing diagnostic analysis on the test result, further controlling the quality and outputting the judgment result, so that the test efficiency of the new energy grid-connected test system is improved.
Drawings
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 schematic structural diagram of a new energy grid-connected testing system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a new energy grid-connected testing system according to another 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 new energy grid connection testing system, including: the new energy resource operation control mobile test system comprises a new energy resource test management platform 100 and a new energy resource operation control mobile test system 200, wherein the new energy resource test management platform 100 is connected with the new energy resource operation control mobile test system 200, the new energy resource test management platform 100 is used for selecting a test template to establish a test task and transmitting the test task to the new energy resource operation control mobile test system 200, the new energy resource operation control mobile test system 200 receives the test task and generates a judgment result to be transmitted to the new energy resource test management platform 100, the new energy resource operation control mobile test system 200 comprises a frequency signal generation module 26 and a high-precision data acquisition module 27, the frequency signal generation module 26 is connected with the high-precision data acquisition module 27, the new energy resource operation control mobile test system 200 calls the frequency signal generation module 26 and the high-precision data acquisition module 27 to carry out automatic grid-connected test according to the received test task, and outputting the test result, wherein the new energy operation control mobile test system 200 further comprises a test result judgment module 23, and the test result judgment module 23 is configured to receive the test result, perform quality detection on the test result according to the diagnosis model in the test result judgment module 23, and output the judgment result.
Specifically, the new energy test management platform 100 reserves and adjusts a master station interface with province/local, realizes new energy electric field grid-related test and grid-connected detection, completes new energy power grid model and data standardization, realizes debugging-free smooth access of a newly-built new energy electric field to the OCS operation system, and realizes convenient detection of new energy grid-connected through intelligent detection steps and means such as self-definition, self-execution and self-evaluation of detection contents of tasks to be detected by the new energy operation control mobile test system 200.
Referring to fig. 2, the new energy test management platform 100 includes a test standard management module 13, a model management module 11, a test task management module 14, a determination result management module 15, and a system interface module 12, where the model management module 11 is connected to the test task management module 14, the model management module 11 is configured to collect all new energy model warehouses uploaded by the mobile test system and establish a new energy model management warehouse, and the test task management module 14 is configured to establish a test task after successfully matching a new energy electric field model to be tested with the new energy model management warehouse. The test standard management module 13 is connected to the test task management module 14, and the test standard management module 13 is configured to provide templated test content management, automated test flow management, and customized test standard management for the test task management module 14. The judgment result management module 15 is respectively connected to the test task management module 14 and the new energy operation control mobile test system 200, and is configured to receive the judgment result, perform intelligent analysis on the judgment result, and manage the judgment report. The system interface module 12 is configured to interconnect with the new energy operation control mobile test system 200, and the system interface module 12 is configured to provide an interface for sample data transmission.
Specifically, the functions of the test standard management module 13 include templated test content management, automated test flow management, and customized test standard management, specifically, the templated test content management includes performing templated management on offshore wind power test content, selecting an applicable test template to establish a test task for different new energy models, creating new custom test content uploaded by the mobile test system synchronously, forming a new test content template, and entering the new custom test content template into a test content template library to provide a test template configuration interface for offshore wind power, which is used for adding, deleting, modifying, and selecting a test template. The automatic test flow management comprises the steps of recording and tracking each link in the test flow after the test distribution is completed, ensuring the automatic execution of the test process, automatically generating the test result, reducing the interference of human factors as much as possible during the test, improving the accuracy and the reliability of the test, and recording the defects in the test process into a defect management tool. The customized test standard management comprises the steps of researching and formulating systematic closed-loop detection standards, including detection content standardization, detection flow standardization, operation step standardization and the like.
The test tasks are divided into a full inspection task and a spot inspection task, wherein the full inspection task is based on the detection before the new energy electric field is first networked, the spot inspection task is a test item which is independently made by a user aiming at a certain operated wind power plant, and the tasks have the characteristics of randomness, flexibility and the like.
The test task management module 14 has functions of test task generation management, test task distribution management, and test task process monitoring, wherein the test task generation management includes formulating and selecting a corresponding new energy electric field model and a corresponding test content template, and establishing a test task. The test task dispatch management includes dispatching the test tasks to the corresponding new energy operation control mobile test system 200. The test task process monitoring comprises the steps of realizing the whole process monitoring of the test task execution process of the mobile terminal, realizing the tasking online intelligent test of new energy and finishing the closed-loop management of the test task from generation to completion.
The function of the judgment result management module 15 includes intelligent analysis of the judgment result and management of the judgment report, wherein the intelligent analysis of the judgment result stores the test data of all the tested new energy electric fields in order in the offshore wind power test management platform, and the intelligent analysis is performed on the test data synchronously uploaded by the new energy electric field operation control test system. And the judgment report management generates judgment results and judgment reports of different test items according to the test data, orderly stores the judgment reports of all the tested new energy electric fields in the offshore wind power test management platform, and browses and accesses the new energy electric field judgment reports according to authority division.
The model management module 11 has the function of drawing and building a model of the new energy electric field according to the grid-connected scale information of the detected new energy electric field. And collecting and summarizing the new energy model warehouses uploaded by all the mobile test systems, and establishing a new energy model management warehouse with unified standard. And selecting a corresponding model from the new energy model warehouse to match and distribute the test task.
And establishing a grid-connected model of the detected new energy electric field station, effectively managing the new energy model, establishing a universal standard new energy model, and providing convenience and guarantee for grid-connected smooth access of the offshore wind power station. The new energy model has the functions of real-time display, statistics, operation and the like, and reflects the system network architecture of the tested new energy electric field and the real-time information of each key node. The operation and monitoring interface of the model is clear and definite, so that the monitoring and the operation are convenient, and the anti-misoperation function is realized. The model system is capable of performing simple topology analysis calculation. And the model is imported and exported, and the system has a model importing and exporting function, so that the model provided by the new energy electric field can be imported, the export of the panoramic model can be realized, and the model is exported to the central station through the standard drawing model of the power grid and the south network. The universal search function is provided by the panoramic model management tool, any model table can be inquired, any field of any model table can be used for constructing inquiry conditions, and complicated conditions are formed by logical operators supporting AND, OR and NOT between the inquiry conditions.
The system interface module 12 is mainly used for the interface between the offshore wind farm grid test mobile test system and the offshore wind farm test management platform, and comprises the following components:
1) an operator VPN private network. The new energy operation control mobile test system 200 can complete real-time synchronous work of various test models, test results, test analysis reports and other information through a wireless VPN private network channel and the new energy test management platform 100, and a security encryption device is added at two transmission ends. And the new energy test management platform completes the monitoring and management of the test automation process through the wireless VPN private network. And (3) a fiber channel. When the wireless signal condition is not met, the new energy operation control mobile test system 200 can communicate with the new energy test management platform 100 through the optical fiber channel to complete the synchronous work of various test models, test results, test analysis reports and other information.
2) Local/provincial switch master interface (reservation). And reserving an interface between the offshore wind farm power grid model and the local dispatching/provincial dispatching master station, uploading the passed offshore wind farm power grid model to the local dispatching/provincial dispatching through a standard CIM/XMI file, and issuing the graph to the local dispatching/provincial dispatching in a standard SVG format. The interface mode adopts a message queue of a JMS message server to replace a traditional preposed network channel, designs a transmission message format based on an E format, replaces a traditional 104 protocol or TASAE2 protocol for data forwarding between main stations, and finally realizes a lightweight new energy electric field pattern data publishing function.
Referring to fig. 2, the new energy operation control mobile test system 200 includes a frequency signal generation module 26, a high-precision data acquisition module 27, a test task synchronization management module 21, a test task execution module 22, a test result determination module 23, a determination report generation module 24, a determination result reporting module 25, and a new energy electric field data access module 28. The test task synchronous management module 21 is connected with the test task execution module 22, the test task execution module 22 is connected with the test result judgment module 23, and the test task synchronous management module 21 is used for receiving the test task, monitoring the test process and transmitting the test items which do not pass the test back to the new energy test management platform 100. The test task execution module 22 is connected to the frequency signal generation module 26, the test task execution module 22 outputs a frequency instruction for detecting a signal generating a frequency change in the test task, and the frequency signal generation module 26 is configured to receive the frequency instruction and start a frequency modulation dynamic performance test. The judgment report generation module 24 is connected with the test result judgment module 23, the judgment report generation module 24 is connected with the judgment result reporting module 25, and the judgment result reporting module 25 is connected with the judgment result management module 15. The new energy electric field data access module 28 is connected with the electric field module 300 to be tested, and the new energy electric field data access module 28 adopts a dual-channel redundancy access mode. The new energy grid-connected testing system further comprises an electric field module 300 to be tested, the electric field module 300 to be tested is connected with the new energy operation control mobile testing system 200, and the electric field module 300 to be tested is connected with the new energy operation control mobile testing system 200 through automatic power generation control.
Specifically, the new energy operation control mobile test system 200 realizes the primary frequency modulation dynamic performance test by the frequency signal generating module 26 generating the frequency change signal to the grid-connected point of the detected new energy electric field, and simultaneously forms linkage with the high-precision data acquisition module 27, and the output result of the high-precision data acquisition module 27 is compared with the communication acquisition signal of the mobile test system to jointly complete the primary frequency modulation and other tests.
The frequency signal generation module 26 is a three-phase four-wire type output, the voltage output range is wider than 0-130V, the output voltage error is not more than +/-0.1%, the frequency output range is wider than 1-100 Hz, the frequency error is not higher than 0.001Hz, the phase output range is 0-360 degrees, the phase output error is not more than +/-0.05 degrees, the signal generation period is not more than 100ms, and voltage and frequency curve editing can be carried out.
The high-precision data acquisition module 27 enables the new energy operation control mobile test system 200 to acquire data such as current, voltage, power and frequency with higher precision on the primary side, the precision of a transformer for acquiring the voltage and the current is not lower than 0.1 level, the sampling frequency is not lower than 20kHz, and the bandwidth is not lower than 2.5 kHz. The new energy grid-connected test is completed together by comparing and analyzing the primary sampling result of the high-precision data acquisition module 27 with the communication acquisition signal of the mobile test system. The high-precision data sampling circuit collects three-phase voltage and three-phase current on the primary side through the high-precision buckle type CT/PT sensor. And calculating basic data such as voltage, current, phase angle and the like by an FFT (fast Fourier transform)/DFT (discrete Fourier transform) algorithm. And calculating each subentry active power, reactive power, total active power and total reactive power by using the voltage, current and phase angle data, accumulating and calculating positive and negative active electric quantity, calculating each phase splitting and total power factor, and calculating 3-13 times of harmonic content, active and reactive demand, voltage and current imbalance rate and the like.
The new energy electric field data access module 28 and the new energy operation control mobile test system 200 are mainly interconnected and intercommunicated with a new energy electric field plant station system, collect relevant real-time information and provide sample data for the test system. The new energy electric field grid-related test mobile test system can record and store a new energy test communication model, supports mainstream communication protocols and protocols, supports communication protocols and protocols such as DL/T634.5.101-2002, DL/T634.5.104-2009, MODBUS, IEC61850, IEC60870-5-101/104, DISA, CDT, DNP and the like, completes various information exchange and data communication of a new energy electric field station system in a wind power field, and supports system-level data access of south standard CIM, SVG, E format and the like.
The new energy electric field data access module 28 can realize information interaction with the new energy electric field, guarantee standardization of information exchange, and complete acquisition of real-time information of the offshore wind farm to be detected. The data transmission and reception and the data preprocessing are completed, and the data storage and query are supported. The support to new media and new protocols can be conveniently and flexibly increased according to the requirement. The flexible protocol library supports that various unknown communication protocols are expanded in a plug-in mode by adopting support, plug-and-play of protocol plug-ins is realized, the original program architecture is not required to be modified when new protocols are added, only a new protocol plug-in library is required to be developed, data communication with various related systems of a master station of a test system and a plant station of the test system is realized, and the support for new media and new protocols can be conveniently and flexibly added according to requirements. Corresponding software and hardware fault tolerance and anti-interference measures are adopted in the interface design, and normal communication between the system and the equipment is guaranteed. The interface communication scheme adopts a hardware encryption device, and a dual-channel redundancy access mode is supported on software, so that the normal communication between the system and the equipment is ensured.
The function of the test task synchronous management module 21 includes synchronizing the test tasks distributed by the test management platform, acquiring the distributed test tasks from the test management platform through mobile network encrypted communication or optical fiber, or synchronously downloading the distributed test tasks in a laboratory before testing. The method also comprises the steps of monitoring the process of the test tasks, synchronizing the process with the test management platform in real time, monitoring various test task processes of the new energy electric field grid-related test in real time, checking the test data and test logs of the current test tasks in real time, and uploading the related test data to the test management platform for professional testers to analyze aiming at the test items which fail to pass the test.
And the test result judging module 23 is used for judging each test result of the new energy electric field grid-related test, and comprehensively evaluating the grid-connected capability of the offshore wind farm by experts by combining each test result. Aiming at the intelligent test analysis process of various test items of the offshore wind power plant grid-related test, in order to reduce manual intervention and improve test efficiency, the test method of the embodiment creates a complex interactive environment for each test case, and realizes automatic identification and matching of a decision-making strategy according to test types and evaluation results. When a judgment report is generated, a test conclusion whether the judgment report passes or not is automatically obtained according to the state of the detection content in the current report and the result after evaluation by a fuzzy comprehensive evaluation method.
In this embodiment, a typical result intelligent diagnosis model is established, a factor set of a diagnosis object is established, and a standard index and an evaluation method of detection content are established based on the state of the offshore wind farm, for example, a detection item may be decomposed into various large indexes such as a communication and signal test, an AVC test, an AGC test, and a primary frequency modulation, that is, Ux ═ X1, X2 … … Xn }. For example, a trend model of each diagnostic factor is established in the evaluation direction, and machine intelligent evaluation of the index is performed. The standard index system for detecting the content mainly comprises: communication protocol test indexes and protocol standardization test indexes. The data accuracy checking test indexes comprise remote measuring data checking test indexes, remote signaling data checking test indexes, remote adjusting test indexes and remote control test indexes. The control strategy execution test indexes comprise curve issuing indexes. The AVC test indexes of the power plant comprise AVC substation system and scheduling main station closed loop operation normal state test indexes including AVC system and main station exchange data detail indexes, receiving scheduling main station remote regulation command test indexes, uploading scheduling main station remote signaling data test indexes and uploading scheduling main station remote measuring data test indexes. The normal state test indexes of the AVC substation system in the local open loop operation comprise a voltage control test index and a dead zone test index. The AVC substation system regulates and controls precision test indexes and AVC substation system speed test indexes. The method comprises the steps of power plant AGC test indexes, scheduling telecontrol debugging indexes, receiving scheduling master station remote control command test indexes, uploading scheduling master station remote signaling data test indexes and uploading scheduling master station remote measuring data test indexes.
The judgment report generation module 24 generates judgment results and test reports of different test items according to the detection content and results and according to the user requirements, the judgment results can lead out reports and graphs, the functions of test report definition, editing, display, storage, query, printing and the like are achieved, and the judgment report template comprises all test items and results of the test system and can be adjusted according to the requirements.
Various test results of the new energy electric field grid-related test are automatically stored locally, and the judgment result data of the new energy operation control mobile test system 200 can be synchronized to the test management platform in real time through a mobile encrypted communication network or an optical fiber, so that the test management platform can check, collect and analyze the judgment result data. Under the condition of poor communication signals, the mobile test terminal can be brought back to the laboratory, and the judgment result is synchronized to the new energy test management platform 100 in an ethernet communication mode.
In one embodiment, a test case configuration module is adopted to synchronously load a required test case set from an offshore wind power test management platform, and the offshore wind power test management platform provides test case configuration interfaces of various offshore wind power plants for adding, deleting, modifying and selecting test cases. Meanwhile, the test object management module loads the test object set to be detected synchronously from the offshore wind power test management platform, and the offshore wind power test management platform provides all management interfaces of the tested offshore wind power plant and is used for adding, deleting, modifying and selecting test objects and dispatching test tasks. And selecting a corresponding test case and a corresponding test object by a user according to the test requirement, configuring parameters, starting a self-driven test execution engine, starting one-key automatic test, calling the offshore wind power plant interface module, the frequency signal generation module 26 and the high-precision data sampling module according to the test content, and starting the test case.
The system master control console is used as a container of the whole system, manages and operates all the modules, operates the system entrance, loads and provides function calling of the test object, then the expert judgment module judges all test data of the offshore wind farm grid-related test, and comprehensively and exclusively evaluates the grid-connected capacity of the offshore wind farm according to all test indexes. After one-key automatic testing, the testing result is stored in the evaluation report management module, so that a user can conveniently manage and output the evaluation testing report, and the evaluation testing report is synchronously uploaded to the offshore wind power testing management platform. Taking the active power change of the AGC test scheme to normally run for 1min as an example, as shown in table 1.
TABLE 1 AGC test scheme active power change normal operation 1min test
Figure BDA0003365221850000091
Figure BDA0003365221850000101
Figure BDA0003365221850000111
The invention provides a new energy grid-connected test system in consideration of the universality of the test system, carries out full-automatic grid-connected function test, is not limited to primary frequency modulation, AGC and AVC, can meet AGC experiments of all grid-connected power stations such as wind power energy storage, can meet AVC experiments of all grid-connected power stations such as wind power energy storage and the like under the normal operation of an active power change value, grid connection and shutdown, active power set value control, active power limit control and the like, can meet closed-loop regulation, target tracking regulation and regulation rate of a master station, can simultaneously meet primary frequency modulation experiments of all grid-connected power stations such as wind power storage and the like, can automatically judge whether a new energy power station reaches the standard after carrying out the grid-connected function test, and displays test items.
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. The utility model provides a new forms of energy are incorporated into power networks test system which characterized in that includes: the new energy testing and managing system comprises a new energy testing and managing platform and a new energy operation control mobile testing system, wherein the new energy testing and managing platform is connected with the new energy operation control mobile testing system;
the new energy testing management platform is used for selecting a testing template to establish a testing task and transmitting the testing task to the new energy operation control mobile testing system, and the new energy operation control mobile testing system receives the testing task, generates a judgment result and transmits the judgment result to the new energy testing management platform;
the new energy operation control mobile test system comprises a frequency signal generation module and a high-precision data acquisition module, wherein the frequency signal generation module is connected with the high-precision data acquisition module;
the new energy operation control mobile test system further comprises a test result judgment module, wherein the test result judgment module is used for receiving the test result, carrying out quality detection on the test result according to the diagnosis model in the test result judgment module, and outputting the judgment result.
2. The new energy grid-connected testing system according to claim 1, wherein the new energy testing management platform comprises a model management module and a testing task management module, the model management module is connected with the testing task management module, the model management module is used for summarizing new energy model warehouses uploaded by all mobile testing systems and establishing a new energy model management warehouse, and the testing task management module is used for establishing the testing task after successfully matching a new energy electric field model to be tested with the new energy model management warehouse.
3. The new energy grid-connected testing system according to claim 2, wherein the new energy testing management platform further comprises a testing standard management module, the testing standard management module is connected with the testing task management module, and the testing standard management module is used for providing templated testing content management, automated testing process management and customized testing standard management for the testing task management module.
4. The new energy grid-connected testing system according to claim 3, wherein the new energy testing management platform further comprises a determination result management module, and the determination result management module is respectively connected with the testing task management module and the new energy operation control mobile testing system, and is configured to receive the determination result, perform intelligent analysis on the determination result, and perform management on a determination report.
5. The new energy grid-connected testing system according to claim 4, wherein the new energy operation control mobile testing system further comprises a testing task synchronization management module, a testing task execution module and a testing result judgment module, the testing task synchronization management module is connected with the testing task execution module, the testing task execution module is connected with the testing result judgment module, and the testing task synchronization management module is used for receiving the testing task, monitoring a testing process and transmitting a testing item which fails to pass the testing back to the new energy testing management platform.
6. The new energy grid-connected testing system according to claim 5, wherein the testing task execution module is connected with the frequency signal generation module, the testing task execution module outputs a frequency command for detecting a signal generating a frequency change in the testing task, and the frequency signal generation module is configured to receive the frequency command and start a frequency modulation dynamic performance test.
7. The new energy grid-connected testing system according to claim 6, wherein the new energy operation control mobile testing system further comprises a determination report generation module and a determination result reporting module, the determination report generation module is connected with the testing result determination module, the determination report generation module is connected with the determination result reporting module, and the determination result reporting module is connected with the determination result management module.
8. The new energy grid-connected testing system according to claim 7, further comprising an electric field module to be tested, wherein the electric field module to be tested is connected with the new energy operation control mobile testing system, and the electric field module to be tested is connected with the new energy operation control mobile testing system through automatic power generation control.
9. The new energy grid-connected testing system according to claim 8, wherein the new energy operation control mobile testing system further comprises a new energy electric field data access module, the new energy electric field data access module is connected with the electric field module to be tested, and the new energy electric field data access module adopts a dual-channel redundancy access mode.
10. The new energy grid-connected testing system according to claim 1, wherein the new energy testing management platform further comprises a system interface module, the system interface module is used for being interconnected with the new energy operation control mobile testing system, and the system interface module is used for providing an interface for sample data transmission.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116520046A (en) * 2023-04-10 2023-08-01 广东永光新能源设计咨询有限公司 Renewable energy power generation grid-connected test method, device, equipment and storage medium

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103246283A (en) * 2013-05-16 2013-08-14 上海电力学院 Closed loop testing method of power plant side automatic voltage control system
CN103970128A (en) * 2014-05-23 2014-08-06 国家电网公司 On-line real-time simulation testing system of wind generating set controller
CN206193125U (en) * 2016-11-04 2017-05-24 国网山东省电力公司电力科学研究院 Performance remote testing system is incorporated into power networks in wind -powered electricity generation field
CN106771745A (en) * 2016-12-19 2017-05-31 国网甘肃省电力公司电力科学研究院 A kind of wind-electricity integration remote test method and system based on internet
US20170269168A1 (en) * 2016-03-18 2017-09-21 Tabuchi Electric Co., Ltd. Islanding Operation Detection Device and Islanding Operation Detection Method
CN107643457A (en) * 2017-09-12 2018-01-30 上海电气分布式能源科技有限公司 A kind of method of testing and system for microgrid energy management system
CN108490284A (en) * 2018-02-12 2018-09-04 国网山东省电力公司电力科学研究院 New energy data acquisition device, system and method towards more application scenarios
CN109600116A (en) * 2018-12-19 2019-04-09 广州供电局有限公司 Mobile grid-connected detection system
CN110108955A (en) * 2019-04-23 2019-08-09 国网山西省电力公司电力科学研究院 A kind of new-energy grid-connected performance automatic test analysis platform and detection method
CN111105096A (en) * 2019-12-23 2020-05-05 南方电网科学研究院有限责任公司 New energy grid-connected layout planning method and system

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103246283A (en) * 2013-05-16 2013-08-14 上海电力学院 Closed loop testing method of power plant side automatic voltage control system
CN103970128A (en) * 2014-05-23 2014-08-06 国家电网公司 On-line real-time simulation testing system of wind generating set controller
US20170269168A1 (en) * 2016-03-18 2017-09-21 Tabuchi Electric Co., Ltd. Islanding Operation Detection Device and Islanding Operation Detection Method
CN206193125U (en) * 2016-11-04 2017-05-24 国网山东省电力公司电力科学研究院 Performance remote testing system is incorporated into power networks in wind -powered electricity generation field
CN106771745A (en) * 2016-12-19 2017-05-31 国网甘肃省电力公司电力科学研究院 A kind of wind-electricity integration remote test method and system based on internet
CN107643457A (en) * 2017-09-12 2018-01-30 上海电气分布式能源科技有限公司 A kind of method of testing and system for microgrid energy management system
CN108490284A (en) * 2018-02-12 2018-09-04 国网山东省电力公司电力科学研究院 New energy data acquisition device, system and method towards more application scenarios
CN109600116A (en) * 2018-12-19 2019-04-09 广州供电局有限公司 Mobile grid-connected detection system
CN110108955A (en) * 2019-04-23 2019-08-09 国网山西省电力公司电力科学研究院 A kind of new-energy grid-connected performance automatic test analysis platform and detection method
CN111105096A (en) * 2019-12-23 2020-05-05 南方电网科学研究院有限责任公司 New energy grid-connected layout planning method and system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116520046A (en) * 2023-04-10 2023-08-01 广东永光新能源设计咨询有限公司 Renewable energy power generation grid-connected test method, device, equipment and storage medium

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