In this paper, a new potential transformer is excogitated using the charge induction and electromagnetic calculation to solve the problems with the potential transformer in smart grid construction. The electric field of the fixed point near the high voltage line is measured and the voltage of the line is deduced by the calculation to the inverse problem of the electric field. The non-contact voltage measurement is carried out by the fast engineering algorithm which contains data processing and calibration calculation carried out by the electromagnetic simulation and experimental data analysis. The problem of the power supply to the device is solved by the high voltage Gain energy technology and the digital interface is designed. The test device is developed and the test is carried out in the test platform and the feasibility of the theoretical method is verified.%利用电荷感应和电磁计算方法,研究出一种新型电压互感器,通过测量高压导线附近固定点的电场,进行电场逆问题计算推断出线路的电压值；然后通过电磁仿真、计算与试验数据分析,进行数据处理和标定计算,获得电压值快速工程算法,实现电压的非接触测量；最后结合高压取能技术解决供电问题,并进行数字化接口设计.研制了电压互感器试验装置,搭建试验平台进行了电场与电压关系和交流电压波形测试试验,验证了理论方法的可行性.
展开▼
