Convertor station electrical equipment status integrated online monitoring system

Abstract

The invention discloses a convertor station electrical equipment status integrated online monitoring system which is divided into an advanced application layer, a spacing layer and an in-situ process layer. The advanced application layer is an integrated online monitoring platform. The spacing layer comprises a plurality of electrical equipment status online monitoring intelligent electric devices (IED). The in-situ process layer comprises a plurality of electrical equipment monitoring sensing units. The electrical equipment monitoring sensing units carry out information exchange with the electrical equipment status online monitoring IEDs through cables or optical fiber. The integrated online monitoring platform accesses data of the online monitoring IEDs of the spacing layer through adoption of an Ethernet switch. The online monitoring IEDs are used for building models based on an international electrotechnical commission (IEC) 61850 standard, and building a structure provided with a full convertor station integrated online monitoring database and an integrated online monitoring analysis and diagnosis function. The convertor station electrical equipment status integrated online monitoring system accesses the integrated online monitoring platform through the adoption of a unified regulation and a communication interface, eliminates background devices of online monitoring IED systems of various manufacturers, simplifies configuration of the devices, and reduces construction cost.

Description

technical field [0001] The invention belongs to a converter station state monitoring system, in particular to a comprehensive on-line monitoring system for the state of electrical equipment in a converter station, which is applied to a direct current converter station. Background technique [0002] In recent years, with the development of sensor technology, signal acquisition and processing technology, the online status monitoring technology of power equipment has developed rapidly, and it can now cover most of the equipment in the station. The online monitoring systems used in the converter station mainly include: ①On-line monitoring of oil chromatography, partial discharge, and iron core grounding of transformers; ②On-line monitoring of partial discharge, SF6 gas density, mechanical characteristics, etc. of circuit breakers; On-line monitoring of partial discharge, SF6 gas density, micro-water, etc.; ④On-line monitoring of leakage current and action times of arrester. Eac...

AI Technical Summary

Problems solved by technology

This solution reduces the workload of operation and maintenance to a certain extent, but the background power equipment of each manufacturer still exists, the communication protocol between the background equipment and the online monitoring IED is still the internal communication protocol of each manufacturer, and the status evaluation and diagnosis functions of the power equipment are still in place. It is completed in the background of each manufacturer. The online monitoring background of the whole station is only a centralized display of the results, and it cannot be regarded as a comprehensive online monitoring platform in the full sense.

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