WAMS low-frequency oscillation identification function test system and WAMS low-frequency oscillation identification function test method

A low-frequency oscillation and test system technology, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of low-frequency oscillation identification function testing and analysis, achieve standardization, reliability and stability, and ensure reliability and stability performance and improve operational reliability

Inactive Publication Date: 2016-06-15
STATE GRID CORP OF CHINA +1
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Problems solved by technology

Based on this system, only the basic functions of WAMS can be tested, such as the electrical potential electrical measurement algorithm in the generator, the main station system pha

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  • WAMS low-frequency oscillation identification function test system and WAMS low-frequency oscillation identification function test method
  • WAMS low-frequency oscillation identification function test system and WAMS low-frequency oscillation identification function test method
  • WAMS low-frequency oscillation identification function test system and WAMS low-frequency oscillation identification function test method

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[0053] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0054] In an embodiment of the present invention, a test system for WAMS low-frequency oscillation recognition function is provided, such as figure 2 As shown, the system includes:

[0055] IEEE (The Institute of Electrical and Electronics Engineers, Institute of Electrical and Electronics Engineers) three-machine nine-node system, which is built on the real-time digital simulation device RTDS, is used to simulate the operating state of the power system under preset low-frequency oscillation events;

[0056] Wide area measurement system WAMS, including multiple synchronized phasor measurement...

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Abstract

The invention discloses a WAMS low-frequency oscillation identification function test system and a WAMS low-frequency oscillation identification function test method. The test system comprises an IEEE three-machine nine-node system which is built on a real-time digital simulator RTDS and used for simulating the running state of a power system under a preset low-frequency oscillation event, and a wide-area measurement system WAMS which includes multiple PMUs (Phasor Measurement Unit) and a master station system. The PMUs are connected with the three-machine nine-node system and the master station system, and are used for collecting dynamic phasor data of the simulated power system and uploading the dynamic phasor data to the master station system. The master station system is used for receiving the dynamic phasor data and analyzing the dynamic phasor data to identify the low-frequency oscillation event of the power system. The result of the master station system's analysis of the dynamic phasor data is collated with the preset low-frequency oscillation event to determine the performance of the low-frequency oscillation identification function of the WAMS. With the system and the method of the invention, the low-frequency oscillation identification function of the WAMS can be tested.

Description

technical field [0001] The invention relates to the technical field of power grid safety monitoring, in particular to a testing system and method for a WAMS low-frequency oscillation identification function. Background technique [0002] WAMS (Wide-area Measurement System, wide-area measurement system) focuses on the measurement of state quantities. The measured data is global-oriented and accurately unified on the same time coordinate. It realizes the dynamic monitoring of wide-area power systems and provides an important technical means. The measurement data based on WAMS can be applied to advanced applications such as online low-frequency oscillation analysis, hybrid state estimation, power angle stability prediction, fault location, and wide-area protection. [0003] The existing system for testing the functions of WAMS is a dynamic simulation test system for building a wide-area dynamic safety monitoring system in a dynamic simulation laboratory, such as figure 1 As s...

Claims

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Application Information

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IPC IPC(8): G01R35/00
Inventor 王长瑞刘军娜张雯杨琨熊健王丰李烜刘苗吴涛曹天植王媛郭鑫刘珅
Owner STATE GRID CORP OF CHINA
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