Static and dynamic test system of synchronous phasor measurement unit pressure measuring unit (PMU)

Abstract

The invention discloses a static and dynamic test system of a synchronous phasor measurement unit pressure measuring unit (PMU). The system comprises a signal generation module, a phasor extraction module and an error statistic analysis module. The signal generation module takes an Omicron relay protection tester as a signal source, and then generates a PMU test waveform base. The phasor extraction module takes a computer device as a PMU main station, sends out off-line calling orders to the to-be-tested PMU, and obtains PMU measurement phasor information through extraction and analysis. The error statistic analysis module compares the obtained PMU measurement phasor information with a phasor theoretical value according to a set test item generated phasor theoretical value, obtains errors of phasor, frequency and power and comprehensive vector errors, and carries out error statistics, analysis and assessment according to the preceding errors. The system can carry out comprehensive and systematic static and dynamic tests for the PMU, improves test efficiency, and provides comprehensive and objective PMU performance assessment methods.

Description

technical field [0001] The invention relates to the technical field of synchronized phasor measurement, in particular to a static and dynamic test system of a synchronized phasor measurement unit PMU. Background technique [0002] In recent years, the proposal and implementation of smart grids have enabled WAMS to be widely used, providing a large amount of synchrophasor data for the power grid, and dynamic security control based on synchrophasor information has been widely used, providing a basis for dynamic security monitoring of power systems. However, as a measurement method, the synchrophasor measurement unit (PMU, PhasorMeasurement Unit) is affected by many factors, and its measurement information inevitably has problems such as measurement errors and dynamic response delays. And because different PMU manufacturers use different hardware and algorithms, the measurement accuracy and dynamic response speed of PMUs from different manufacturers are also different. If the ...

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Problems solved by technology

[0003] However, in the existing technical solutions, the PMU dynamic standard has just been released, the test items are not clear, the signal parameters vary widely, and the data analysis is cumbersome, the manual test work cycle is long, and it is not comprehensive. There is no complete PMU static in China. The dynamic test system was successfully developed

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