输电线路参数异频法量测原理适应性研究

Adaptability Study of Parameters Measuring Principle for Transmission Lines Based on Non-power Frequency Method

基于异频法的原理和参数测试方法,对现有4种不同测试频率的异频法进行分析和比较,从算法上分析了异频法产生的误差,并对3种工况进行仿真测试和验证,根据不同测试条件下的误差变化趋势给出适用的测试频率。

This paper analyzes and compares four kinds of non-power frequency measuring methods based on the theo- ry of non-power frequency measuring method and electrical parameters test method. And the cause of non-power frequen cy measuring error is analyzed. The methods are verified and simulated under three testing conditions. Finally, applicable of test frequency is obtained on the basis of error change trend in different conditions.