Wind power plant booster station, and 35kV current collection line equipment prevention test period optimization method and system

Abstract

The invention provides a wind power plant booster station and a 35kV current collection line equipment prevention test period optimization method. The method comprises the following steps of (1) carrying out prevention test period optimization on the wind power plant booster station, which includes a lightning arrester, a current transformer, a voltage transformer, a vacuum circuit breaker and anovervoltage protector of a 35kv voltage level in the wind power plant booster station, a transformer, a current transformer, a capacitive voltage transformer, an SF6 circuit breaker, an outdoor high-voltage isolating switch, the lightning arrester with the voltage levels of 110kv and above, and a booster station earth network grounding resistor, and optimizing an earth network conduction test in the station and an SF6 gas leakage detection test; and (2) carrying out prevention test period optimization on 35kV current collection line equipment, which includes an insulation resistance and directcurrent resistance test, an insulating oil chromatography test, the transformation ratio test of a box-type substation and an alternating current voltage withstanding test, determining a 35kV lightning arrester test period, and carrying out a lightning arrester infrared temperature measurement test and a power failure test, infrared thermal imaging detection, insulator detection and the period optimization of an earth network grounding resistance test. The invention also provides a corresponding optimization system.

Description

technical field [0001] The invention belongs to the field of preventive tests of electric power equipment, and in particular relates to a method and system for optimizing the preventive test period of wind farm step-up stations and 35kV collector line equipment. Background technique [0002] As the country attaches great importance to the new energy industry, more and more wind farms have been put into operation in Northwest China due to its unique advantages in wind energy resources in recent years. Under normal circumstances, a 100MW or 50MW wind farm needs to be equipped with a 110kV substation. Some large-scale new energy companies have an installed capacity of more than one million kilowatts in the region, and the number of 110kV substations exceeds 10. Once the main equipment of the substation fails, it will cause The whole site was blacked out, so the owner should put the preventive test of the substation and the annual regular inspection of the wind turbine into an e...

AI Technical Summary

Problems solved by technology

However, in the prior art, there is no research on the preventive test cycle optimization method and system of wind farm booster station and 35kV collector line equipment, only some conventional preventive test methods, which are not effective in judging the risk of equipment operation, so that it is impossible to Preventive trials for periodic optimization

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