Intelligent substation based on sensor, communication network and expert system

Abstract

The invention discloses an intelligent substation based on sensors, a communication network and an expert system. The intelligent substation comprises a substation automation system, a primary equipment condition monitoring system and an intelligent auxiliary control system. The intelligent substation is characterized in that the real-time data of equipment operation are acquired by additionally installing various sensors, the IEC61850 standard is utilized to realize information modeling of the sensor data, a communication network is utilized to build a physical channel for information transmission, and advanced application of the substation automation system and intelligent monitoring and linkage of the primary equipment condition monitoring and auxiliary systems are realized by a background expert system, thus realizing intelligent operation and patrol functions of the substation; the sensors include an all-fiber electronic current transformer, a capacitive voltage divider type electronic voltage transformer, a primary equipment condition monitoring sensor and an internet sensor with an auxiliary system things; and the advanced application of the substation automation system includes sequential control, equipment condition visualization, intelligent alarm, distributed condition estimation, substitution function and the like. Intelligent operation and patrol functions of the substation can be realized.

Description

technical field [0001] The invention relates to a new type of substation, which realizes the intelligent operation and inspection function of the substation through sensors, communication networks and expert systems, and belongs to the technical field of power systems. Background technique [0002] After decades of development, my country's substations have formed a relatively mature model, which has played an important role in ensuring the safe and economical operation of the power grid. But there are still many problems, such as: [0003] Conventional transformers have problems such as magnetic saturation, ferromagnetic resonance, explosion of insulating oil, leakage of sulfur hexafluoride, short circuit / open circuit, etc.; [0004] There is a lack of comprehensive monitoring means for the operation parameters of the primary equipment (such as: main transformer, GIS, etc.) in the station, and regular power outage maintenance is required for the equipment, which reduces th...

AI Technical Summary

Problems solved by technology

The inspection process of personnel failed to achieve effective monitoring, and the inspection quality was difficult to control, increasing the difficulty of management;

[0008] The digitalization and informatization of information interaction are not high, and the background data lacks the integrated advanced application of expert system, which cannot provide more auxiliary online decision support for operation

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