Power quality monitoring management system based on electric power wide-area network

A power quality monitoring and management system technology, applied in the direction of measuring electrical variables, measuring electricity, measuring devices, etc., can solve problems such as inconsistent power quality data formats

Inactive Publication Date: 2013-06-05
JIANGSU UNIV
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  • Description
  • Claims
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Problems solved by technology

[0003] At present, because various monitoring instrument manufacturers adopt their ow

Method used

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  • Power quality monitoring management system based on electric power wide-area network
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  • Power quality monitoring management system based on electric power wide-area network

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Embodiment Construction

[0032] A power quality monitoring and management system based on electric power wide area network proposed by the present invention is composed of three parts: data acquisition subsystem, regional management subsystem and power quality monitoring center subsystem, and realizes the analysis and management of power grid power quality by layering and dividing authority .

[0033] 1. Data Acquisition Subsystem

[0034] The data acquisition subsystem takes DSP and ARM as the core, and a dual-port RAM, including DSP module, ARM module, signal conditioning module, anti-aliasing filter module, A / D conversion module, serial communication, dual-port RAM, clock circuit, GPS positioning, human-computer interaction interface, communication module and other modules. The functions realized include data collection and processing, data standardization conversion, and data processing and sending. It is an intelligent power monitoring device integrating measurement, control, display and communi...

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Abstract

The invention provides a power quality monitoring management system based on an electric power wide-area network. The power quality monitoring management system is formed by a data acquisition subsystem, regional management subsystems and an electrical energy quality monitoring center subsystem. The data acquisition subsystem is used for processing voltage signals and current signals collected on site, storing the voltage signals and the current signals in a power quality data interchange format (PQDIF), and uploading the processed electrical energy quality data to the regional management subsystem in real time. Each regional management subsystem is used for being connected with the data acquisition subsystem and the electrical energy quality monitoring center subsystem, and summarizing and storing the real-time and historical data of electrical energy quality so as to achieve the function of application service. The electrical energy quality monitoring center subsystem contains all the functions of the regional management subsystems, is equivalent to a set of the regional management subsystems, is a comprehensive management mechanism of the whole system and is used for being in charge of a main network frame, monitoring electrical energy quality points and areas which are heavily polluted and carrying out summarization on the data uploaded by a local-area power grid so as to make comprehensive estimation to the electrical energy quality level of the whole power grid operation.

Description

technical field [0001] The invention discloses a power quality monitoring and management system based on a power wide area network, and relates to the field of power quality monitoring. Background technique [0002] The monitoring and analysis of power quality is the precondition for improving the power quality of the power system. At present, most of the domestic power quality monitoring uses comprehensive power quality analyzers or harmonic analyzers. Synchronous measurement of electric energy and transmission of measurement data and centralized analysis and evaluation. Therefore, it is necessary to establish a set of remote and centralized monitoring and analysis system for power quality, to analyze indicators such as waveform distortion, voltage fluctuation and flicker, and three-phase voltage unbalance that affect power quality, and to find out factors that affect power quality in time. The reason is to ensure the safe, reliable and economical operation of the power gr...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 刘国海王政赵璐沈跃
Owner JIANGSU UNIV
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