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Dynamic testing method and device for synchrophasor measuring device in power system

A technology of synchronized phasor measurement and power system, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of complicated operation, time-consuming and laborious, difficult to realize the dynamic performance test of PMU in system operation, and achieve the goal of improving operation reliability Effect

Active Publication Date: 2016-08-24
STATE GRID CORP OF CHINA +1
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  • Claims
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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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  • Dynamic testing method and device for synchrophasor measuring device in power system
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  • Dynamic testing method and device for synchrophasor measuring device in power system

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Embodiment Construction

[0039] 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.

[0040] 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, many 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 power system real-time digital sim...

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PUM

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Abstract

The invention discloses a dynamic testing method and device for a synchronized phasor measuring device in a power system, wherein the method includes: building a simulation model including a generator set, a transformer, a line, a load and an equivalent power grid on a real-time digital simulation device RTDS platform; using The simulation model simulates the dynamic characteristics of the power system, and detects the synchronized phasor measurement device PMU through a real-time simulation test. The invention is easy to implement, can correctly and reasonably detect and evaluate the performance of the PMU, and better promote the further development of the PMU technology; it meets the laboratory's requirements for testing the dynamic performance of the PMU, provides an effective means for network access detection, and meets the requirements of the manufacturer. It is of great significance to improve the operation reliability of the power grid to standardize and ensure the quality of power system synchrophasor measurement devices in order to meet the needs of product development and factory inspection.

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 for measuring and sending synchronized phasors, and recording 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 pl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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