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A Static and Dynamic Test System of Phasor Measurement Unit pmu Based on High Accuracy Calibrator

A technology of phasor measurement unit and test system, which is applied in the field of phasor measurement unit PMU static and dynamic test system, can solve the problems of inability to test PMU on-site, high signal source requirements, etc., and achieve the effect of static and dynamic testing

Active Publication Date: 2018-07-27
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0004] The purpose of the present invention is to provide a phasor measurement unit PMU static and dynamic test system based on a high-precision calibrator. question

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  • A Static and Dynamic Test System of Phasor Measurement Unit pmu Based on High Accuracy Calibrator
  • A Static and Dynamic Test System of Phasor Measurement Unit pmu Based on High Accuracy Calibrator
  • A Static and Dynamic Test System of Phasor Measurement Unit pmu Based on High Accuracy Calibrator

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Embodiment Construction

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] The PMU static and dynamic test system described in the embodiment of the present invention can realize the functions of test signal sending, reference phasor generation, measurement phasor extraction, and error analysis and evaluation, wherein the high-precision calibrator is the key and difficulty of the test system. Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings,...

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Abstract

The invention discloses a phasor measurement unit (PMU) static-dynamic test system based on a high-precision calibrator. The system comprises a signal source used for generating corresponding test signals according to different test cases; the high-precision calibrator used for sampling the test signals generated by the signal source and obtaining reference phasors through calculating the sampled test signals by use of a nonlinear regression synchronization phasor algorithm; a measurement phasor extraction module used for emitting an offline call command to a PMU to be tested by taking a computer device as a PMU master station, and obtaining measurement phasor information through extraction and analysis; and an analysis comparison module used for comparing the measurement phasor information with the reference phasors generated by the high-precision calibrator so as to realize static-dynamic testing of the PMU to be tested. According to the invention, the problems of high requirements of a PMU test system based on a high-precision signal source for the signal source and incapability of onsite testing on the PMU are solved, and comprehensive and systematic PMU static and dynamic testing is realized.

Description

technical field [0001] The invention relates to the technical field of synchronized phasor measurement, in particular to a static and dynamic test system for a phasor measurement unit PMU based on a high-precision calibrator. Background technique [0002] At present, the application of Phasor Measurement Unit (PMU) has brought a revolutionary change to the measurement technology of power system. As a measurement method, it is affected by the dynamic process of power system and many other factors. PMU Measurement information inevitably has problems such as measurement errors and dynamic response delays. The PMU devices in the power grid come from different manufacturers, and their hardware configurations and internally applied synchrophasor algorithms are not the same, which makes the measurement accuracy and static and dynamic behavior of the PMU devices vary widely. In order to ensure that the PMU device can meet the index requirements of synchrophasor measurement, it is n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/00
CPCG01R35/00
Inventor 刘灏王璐毕天姝钱程
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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