一起特高压变电站110 kV站用变异常调压改进措施分析
常腾飞，刘杰，豆宝
（国网浙江省电力有限公司检修分公司，浙江 杭州 311232）
摘 要：介绍了某特高压变电站站用交流系统和高压站用变有载调压原理，阐述了一起高压站用变异常调压现象，分析了其产生原因，并给出了5 种改进措施。指出当站外备用电源电压超出合格范围后，还是无法进行电压控制，只能使备用电源对侧站尽量确保相关35 kV 母线电压在合格范围内，或者将本站0号站用变改造成有载调压方式。
关键词：站用变；有载调压；特高压变电站
中图分类号：TM63 文献标识码：B 文章编号：1007-3175(2019)06-0037-04
Discussion on Improvement Measures of Abnormal Voltage Regulation for 110 kV Station in UHV Substation
CHANG Teng-fei, LIU Jie, DOU Bao
（Maintenance Company of State Grid Zhejiang Electric Power Company, Hangzhou 311 232, China）
Abstract: This paper introduced the principle of on-load voltage regulation for the AC system and high voltage station of certain UHV substation, expounded a case of abnormal voltage regulation phenomenon in high voltage station, analyzed the produced reason and gave five kinds of improved measures. It is pointed out that after the standby power supply voltage outside the station exceeds the qualified range, the voltage control cannot be performed. It is only possible to make the standby power supply side station try to ensure that the relevant 35 kV bus voltage is within the qualified range, or changes No. 0 station in home station into an on-load voltage regulation mode.
Key words: station variable; on-load voltage regulation; UHV substation
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