特高压变压器调压补偿方式分析  

Analysis of Voltage Regulation and Compensation Mode for UHV Transformer

作　　者：张星宇 秘立鹏 孙睿 安义岩 张小明 ZHANG Xingyu;MI Lipeng;SUN Rui;AN Yiyan;ZHANG Xiaoming(Eastern Inner Mongolia Electric Science Research Institute,Hohhot 010010,China)

机构地区：[1]国网内蒙古东部电力有限公司电力科学研究院,呼和浩特010010

出　　处：《内蒙古电力技术》2021年第5期31-34,共4页Inner Mongolia Electric Power

基　　金：国网内蒙古东部电力有限公司科技项目“高压智能套管关键技术研究及样机测试”(526604210003)。

摘　　要：分析了特高压变压器采用单相分体自耦变压器结构的合理性,在对比有载和无载两种调压方式基础上,分析特高压变压器调压方式及调压位置。对特高压变压器常用的两种调压补偿原理进行了介绍,综合考虑绝缘性能、经济性、可靠性等方面的要求,认为特高压变压器宜采用中性点调压,但需对低压侧电压进行补偿,以降低主体变压器低压侧电压变化量。最后分别给出采用完全和不完全补偿方法的变压器各绕组电磁关系,并对电压调节差别进行了分析比较,结果表明,完全补偿方式相比非完全补偿方式调压效果好,低压侧电压变化小。The rationality of single phase separate autotransformer structure of UHV transformer is introduced.On the basis of comparison of the two load voltage regulation methods with on⁃load and no⁃load,the voltage regulating methods and the voltage regulating position of UHV transformer are analyzed.Two principles of voltage regulating and compensation of UHV transformer are introduced,considering the requirements of insulation,economy,reliability and other aspects,neutral point voltage regulation should be adopted for UHV transformer.However,it is necessary to compensate the low⁃voltage side voltage to reduce the variation of the low⁃voltage side voltage.The electromagnetic relations of each winding of two kinds of different voltage regulation and compensation method of transformer are provided respectively,and the differences of the voltage regulation effect between the two kinds of voltage regulation and compensation method are analyzed and compared.The results show that the voltage regulation effect of full compensation method is better than that of incomplete compensation method,and the voltage change at low voltage side is smaller.

关 键 词：特高压变压器 调压方式 调压位置 调压补偿 电磁关系 

分 类 号：TM423[电气工程—电器]