一种新型的电力机车用光纤电压互感器  

A New Optical Fiber Voltage Transformer with Capacitor Used on Electric Locomotives

作　　者：余丹[1] 孙文[2] 徐雁[2] 马坦[2] 

机构地区：[1]咸宁职业技术学院信息与软件工程系,湖北咸宁437100 [2]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《机车电传动》2014年第2期69-72,共4页Electric Drive for Locomotives

基　　金：强电磁工程与新技术国家重点实验室基金项目(2013KF001)

摘　　要：针对目前传统电力机车用电压互感器存在谐振、在机车过电分相时容易造成过电压等缺陷,提出了一种新的检测方案,有别于传统的电磁感应方式,该方案使用阻容分压,并通过光纤传递数字信号。相对于传统互感器本方案在体积、绝缘、安全、精度方面均有较大优势。试验结果显示该方案性能优良,并可满足机车需求。For the issue that resonance of traditional voltage transformer used on electric locomotives causeed overvoltage while locomotive passing neutral section, a neu design was presented with resistive-capacitive voltage measurement method replacing existing electromagnetic method and optical fiber transmitting digital signals. The new design showed the advantages such as small size, excellent insulation, operating security and high measuring accuracy. The tests proved that the new design had an excellent performance and could meet the demand of locomotive.

关 键 词：电力机车 电压互感器 光纤 电容 

分 类 号：U264.7[机械工程—车辆工程] TM451[交通运输工程—载运工具运用工程]