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Method and device for dynamically testing synchronized phasor measurement unit (PMU) in power system

A synchrophasor measurement, power system technology, applied in the direction of measurement device, measurement of electrical variables, instruments, etc., can solve the problems of complex operation, time-consuming and laborious, difficult to realize the dynamic performance test of system operation PMU, etc., to improve the operation reliability. Effect

Active Publication Date: 2014-01-22
STATE GRID CORP OF CHINA +1
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Problems solved by technology

However, the PMU performance test in the prior art is complicated, time-consuming and labor-intensive, and it is difficult to realize the dynamic performance test of the PMU under dynamic working conditions such as system operation, transient state, and abnormality.

Method used

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  • Method and device for dynamically testing synchronized phasor measurement unit (PMU) in power system
  • Method and device for dynamically testing synchronized phasor measurement unit (PMU) in power system
  • Method and device for dynamically testing synchronized phasor measurement unit (PMU) in power system

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Embodiment Construction

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the 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.

[0042] The inventor considers that the RTDS (Real-time Digital Simulator, real-time digital simulation device) dynamic model system has the advantages of convenient model construction, multiple system models, and repeatable fault conditions; by simulating the actual power system on the RTDS platform, the oscillation It is of great significance to carry out the dynamic test research of PMU, which can correctly and reasonably detect and evaluate the performance of PMU, and better promote the further development of PMU technology. RTDS is a real-time digital simulation s...

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Abstract

The invention discloses a method and a device for dynamically testing a synchronized phasor measurement unit (PMU) in a power system. The method comprises the following steps: setting up a simulation model comprising a generator unit, a transformer, circuits, a load and an equivalent power grid on an RTDS (Real-Time Digital Simulator) platform; utilizing the simulation module to simulate the dynamic characteristics of the power system and detecting the PMU of the synchronized phasor measurement unit through real-time simulation tests. The method and the device are convenient to realize, the performance of the PMU can be correctly and reasonably detected and evaluated, and the further development of a PMU technology is better promoted. The test requirements of laboratories on the dynamic performance of the PMU are met, an effective means is provided for network access detection, the work requirements of manufacturers on product development, delivery inspection and the like are met, and the quality of the synchronized phasor measurement unit in the power system is specified and ensured. The method and the device have great meaning in improving the running reliability of the power grid.

Description

technical field [0001] The invention relates to the technical field of power measurement, in particular to a dynamic testing method and device for a synchronized phasor measuring device in a power system. Background technique [0002] PMU (Phasor Measurement Unit, synchronized phasor measurement device) is a device used to measure and upload synchronized phasors, and record dynamic and transient data. With the continuous development of power grid interconnection, the problem of safe and stable operation of the power grid has become increasingly prominent. The application of PMU-based WAMS (Wide-area Measurement System, wide-area measurement system) in power systems provides new technical means for solving the above problems . WAMS conducts accurate and comprehensive real-time monitoring of the operating status of the power system, and is generally used as the third line of defense in addition to protection or safety control devices. PMU is the core part of WAMS, which play...

Claims

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Application Information

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IPC IPC(8): G01R35/00
Inventor 王长瑞刘军娜王丰李烜杨琨熊健张雯曹天植王媛刘珅
Owner STATE GRID CORP OF CHINA
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