Broadband multifrequency electric capacity unified measurement analysis system and implementation method

A technology of measurement analysis and electrical quantity, applied in the field of broadband multi-frequency measurement analysis system, can solve the problems of frequent harmonic interference and sub-synchronous oscillation in traditional power grids, reduce construction and commissioning costs, simplify overall station design, and reduce equipment Quantity effect

Active Publication Date: 2017-10-17
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the present invention is to provide a unified measurement and analysis system and implementation method of broadband multi-frequency electrical quantities, which solves the probl...

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  • Broadband multifrequency electric capacity unified measurement analysis system and implementation method
  • Broadband multifrequency electric capacity unified measurement analysis system and implementation method

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Embodiment 1

[0056] The broadband multi-frequency electrical quantity unified measurement and analysis system includes at least one front-end electrical quantity measurement device arranged at the substation bay layer, and a data storage and analysis host computer arranged at the inter-station coordination control layer. The front-end electrical quantity measurement device is cascaded The switches and data storage and analysis hosts perform data transmission. The front-end electrical quantity measurement device can collect various low-frequency, power-frequency and high-frequency signals in the steady state, dynamic and transient state of the power grid at high frequency and perform calculation, analysis and transmission; the back-end measurement data storage and analysis host can receive front-end measurement The data transmitted by the device is stored, and at the same time, the received data can be analyzed and displayed; the upload of received data, the transmission of data analysis res...

Embodiment 2

[0087] The present invention also provides a method for implementing a unified measurement and analysis system for broadband multi-frequency electrical quantities, including:

[0088] The electrical quantity measuring device collects grid data at high frequency;

[0089] The data storage and analysis host receives and stores the grid data transmitted by the electrical quantity measuring device, and at the same time analyzes, displays and forwards the received grid data, and transmits the data analysis results.

[0090]Further: the grid data is stored, including: when there is one electrical quantity measurement device, the data storage and analysis host stores according to different devices, different ports and different types; when there are two or more electrical quantity measurement devices When installed, the data storage and information interaction of multiple electrical quantity measurement devices in the substation are carried out through the networking module;

[0091...

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Abstract

The invention relates to a broadband multifrequency electric capacity unified measurement analysis system and implementation method. The system includes at least one electric capacity measuring device and a data storage and analysis host, the electric capacity measuring device acquires the power grid data at high frequency, and the data storage and analysis host receives the power grid data transmitted by the electric capacity measuring device for storage and meanwhile analyses, displays and forwards the received power grid data and transmits the data analysis result; the data storage and analysis host includes a network module for data storage and information exchange of multiple electric capacity measuring devices in the substation; and the electric capacity measuring device is arranged in the substation spacing layer, and the data storage and analysis host is arranged in the substation control layer. The system solves the problem that the measurement technology in the prior art cannot carry out the comprehensive and accurate measurement for the new characteristics of increasingly frequent harmonic interference and subsynchronous oscillation of a conventional power grid due to high-voltage DC power transmission technology, FACTS technology, and new energy large-scale access.

Description

technical field [0001] The invention relates to an analysis system for wide-band multi-frequency measurement, in particular to a wide-band multi-frequency unified measurement and analysis system for electrical quantities and a realization method. Background technique [0002] With the deepening of the development and construction of the smart grid, different acquisition and measurement devices are installed in the substation according to different application requirements, such as the measurement and control device for the steady-state measurement of the power grid, whose measurement data is transmitted to the SCADA monitoring system to realize the steady-state monitoring of the power grid ;With the development of wide-area measurement technology, PMU is widely used in substations with a voltage level of 220kV and above. Although it is connected to the same acquisition loop as the measurement and control device, the measurement of the PMU device is indeed the dynamic data of ...

Claims

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 樊陈姚建国於益军倪益民
Owner CHINA ELECTRIC POWER RES INST
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