铁磁谐振过电压柔性控制的试验研究  

Experimental Study on Flexible Control of Ferroresonance Overvoltage

作　　者：杨鸣[1] 司马文霞[1] 段盼 杨庆[1] 袁涛[1] 张耘溢 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400030 [2]国网重庆电力公司南岸分公司,重庆400060 [3]国网宁夏电力公司检修公司变电检修中心,银川750411

出　　处：《高电压技术》2015年第2期647-653,共7页High Voltage Engineering

基　　金：国家自然科学基金(51177182);国家重点基础研究发展计划(973计划)(2009CB724504);国家创新研究群体基金(51321063)~~

摘　　要：为了控制不同类型的铁磁谐振过电压,通过向量分析方法详细分析了铁磁谐振过压的产生及控制机理,并基于此提出了一种采用全控高速电力电子开关的铁磁谐振过电压柔性控制方法。搭建了铁磁谐振柔性控制试验平台,基于该平台得到了几种电力系统典型的铁磁谐振过电压,并对这几种典型铁磁谐振过电压进行了柔性控制试验研究。结果表明:提出的铁磁谐振柔性控制方法能够在0.12 s内将电力系统中常见的基频、分频和高频铁磁谐振过电压控制至正常水平,且控制后的电压谐波满足IEEE 519—1992标准。该方法简单有效,具有现场实际运用的潜力。To control different types of ferroresonance, we discussed the mechanism of ferroresonance and its control through vector analysis, and then proposed a flexible control method for ferroresonance overvoltage using all-controllable high-speed power electronic switches based on the discussion. We also built a laboratory platform to simulate several kinds of typical ferroresonance overvoltage in power systems, and tested the presented flexible control method with the overvoltage. The results show that the flexible control method is able to control fundamental, sub-harmonic, and harmonic ferroresonance in less than 0.12 s. The harmonics of the controlled ferroresonance overvoltages are all within the limitation indicated in IEEE 519—1992 standard. The flexible control method is simple and effective, and has the potential for applications in power systems.

关 键 词：铁磁谐振 过电压 柔性控制 谐波分析 向量分析 快速FOURIER变换 

分 类 号：TM864[电气工程—高电压与绝缘技术]