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Synchronous phasor measuring unit (PMU) detecting device

A technology of synchronized phasor measurement and detection devices, which is applied in the direction of measuring devices, measuring electrical variables, instruments, etc., to achieve the effect of improving on-site detection capabilities, real-time monitoring capabilities, and improving accuracy

Inactive Publication Date: 2013-06-19
ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is, in order to solve the problem that the synchrophasor measurement unit PMU cannot be directly detected, a kind of synchrophasor measurement unit PMU on-site detection device is proposed, the device It can realize the detection of the function and performance of the synchronized phasor measurement unit PMU

Method used

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  • Synchronous phasor measuring unit (PMU) detecting device

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Embodiment Construction

[0035] The specific embodiment of the present invention is as image 3 shown.

[0036] The hardware implementation of the PMU detection device in the embodiment of the present invention is a system built with the digital signal processor DSP as the core, and the FPGA programmable controller realizes the synchronous signal source function, and the DSP processor 3 is used as the data processing unit of the high-speed sampling module to complete the sampling Data processing and storage.

[0037] As the control module of the device, the digital signal processor DSP1 receives the instructions of the host computer software through the network interface, and controls the sending and receiving of commands and the timing and synchronous output of three-phase AC signals according to the requirements of the testers. The PMU detection device adopts TMS320F2812 digital signal processor of TI Company.

[0038] The FPGA programmable logic device is used to realize the synchronous frequency...

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Abstract

Provided is a synchronous phasor measuring unit (PMU) detection device. The synchronous phasor measuring unit (PMU) detecting device includes a global positioning system (GPS) module, a high-speed power amplifier module, a control module, a synchronous signal source, a high-speed sampling module, a double-port memorizer module 1, a double-port memorizer module 2, a memory module and a man-machine interface. The synchronous phasor measuring unit (PMU) detecting device regards GPS second pulse signals as synchronous signals to generate synchronous frequency standard signals as direct numerical frequency to synthesize crystal oscillator signals of a digital display scope (DDS) so that alternating current and voltage signals which are synchronous with the GPS second pulse are output, and the detecting device of the PUM is formed by the high-speed power amplifier, an output circuit, the high-speed sampling circuit and an upper computer software. A standard source method is used for achieving the detection of functions of the synchronous phasor measuring unit (PMU) and properties so that difficult problem that the synchronous phasor measuring unit (PMU) cannot be directly detected is solved.

Description

[0001] technical field [0002] The invention relates to a PMU detection device for a synchronized phasor measurement unit, belonging to the technical field of power system measurement. Background technique [0003] At present, the companies in various grid provinces have fully installed the wide area power grid real-time dynamic monitoring system (WAMS). The data quality of the synchronized phasor measurement device PMU is a key factor affecting the application of the WAMS system. The traditional program-controlled power source can only quantitatively output the three-phase AC signal value, which can only be applied to the steady-state quantitative test of the device, and cannot detect the dynamic performance of the PMU device. The national scientific and technological achievement "Research and construction of network access detection platform for dispatching automation equipment in North China power grid plant and station" project solved the three-phase AC standard sour...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
Inventor 赵江宁孙平裴茂林张春强胡海梅谢文婧熊志琳
Owner ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO
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