基于主变运行历史数据分析的超高压变电站运行策略研究

Research on Operation Strategy of UHV Substation Based on Historical Operating Data Analysis of Main Transformer

超高压电网中,主变在夏季高峰负荷期间易发生重过载和高油温,不利于电网安全稳定运行。基于2022年度上海地区夏季高峰负荷阶段主变运行负载率和油温的历史数据,对超高压变电站主变重载、负载分配不均、不满足主变N-1条件等情况进行统计,对主变高油温情况进行分析并提出相关建议,为治理变压器重过载和高油温问题提供参考。

In the ultra-high voltage power grid,the main transformer is prone to heavy overload and high oil temperature during peak load period in summer,which is detrimental to safe and stable operation of power grid.Based on the historical operating data of load rate and oil temperature with respect to the main transformers in Shanghai in 2022,the paper analyzes high oil temperature status of main transformers and gives some suggestions.It is expected to provide reference for coping with transformer heavy overload and high oil temperature.