Dynamic performance test method for synchronous phasor measurement unit PMU
A technology for synchrophasor measurement and dynamic performance, which is applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., which can solve the problems of no PMU dynamic characteristic test method and no strict inspection.
Active Publication Date: 2010-12-01
BEIJING SIFANG JIBAO AUTOMATION +1
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Problems solved by technology
Although the IEEEEC37.118 standard specifies the static characteristics of the synchrophasor measurement unit PMU, there is no mature test method for the dynamic characteristics of the PMU.
So far, the accuracy and phasor measurement consistency of the PMU products of various manufacturers in the actual operating environment have not been strictly tested
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The invention discloses a dynamic performance test method for a synchronous phasor measurement device PMU, which is based on wide area measurement system WAMS master station real-time data. According to the real-time dynamic measurement curve of frequency and voltage amplitude, frequency change rate, amplitude change rate and frequency swing-amplitude change rate are calculated, and the calculated change rates are compared with a set threshold to judge the dynamic performance of PMU. In the progress of actual operation, the three indicators are calculated periodically, and time and indicator information are recorded. PMU data quality can also be evaluated off-line by using a method of combining statistics. On the basis of the operation environment of an actual electric power system, the dynamic performance test method provides a better solution so that users using an electric power system wide area measurement system can evaluate the dynamic performance of the PMU, and the realizationof the method is easy and effective.
Description
Dynamic performance test method of synchrophasor measurement unit PMU technical field The invention belongs to the technical field of power system wide-area measurement. Specifically, it relates to a method for online testing the dynamic performance of a PMU. Background technique The wide-area measurement system based on the synchrophasor measurement unit PMU can record and monitor the dynamic operation status of the power grid. At present, power grids above the provincial level are building PMU sub-stations and wide-area measurement system WAMS master stations on a large scale. Although the IEEEEC37.118 standard specifies the static characteristics of the synchrophasor measurement unit PMU, there is no mature test method for the dynamic characteristics of the PMU. So far, the accuracy and consistency of phasor measurement of the PMU products of various manufacturers in the actual operating environment have not been strictly tested. The dynamic measurement performance o...
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IPC IPC(8): G01R31/00G01R35/00
Inventor 孙晓彦吴京涛段刚
Owner BEIJING SIFANG JIBAO AUTOMATION