A method and system for optimizing the preventive test cycle of wind farm booster station and 35kv collector line equipment

Abstract

The present invention provides a method for optimizing the preventive test period of the wind farm booster station and 35kV collector line equipment, including: (1) optimizing the preventive test cycle of the wind farm booster station, including the 35kv voltage level in the wind farm booster station Lightning arresters, current transformers, voltage transformers, vacuum circuit breakers, overvoltage protectors, transformers with voltage levels of 110kv and above, current transformers, capacitive voltage transformers, SF6 circuit breakers, outdoor high-voltage isolation switches, lightning arresters, Optimize the grounding resistance of the ground network of the press station, the continuity test of the ground network in the station, and the SF6 gas leak detection test; (2) optimize the preventive test cycle of the 35kV collector line equipment, including insulation resistance and DC resistance tests, insulating oil chromatography test , Transformation ratio test and AC withstand voltage test of box transformer, 35kv arrester test cycle determination, arrester infrared temperature measurement test and power failure test, infrared thermal imaging detection, insulator detection and ground grid grounding resistance test cycle optimization. A corresponding optimization system is also provided.

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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