摘要
首先介绍了电子式互感器的数据同步问题,并针对线性插值的同步算法进行了分析,指出了该算法的不足之处。在此基础上,提出了基于二次插值理论的同步算法,并进行了误差的理论和仿真分析。结果表明,二次插值同步算法可以有效提高同步的精度,尤其在包含高次谐波的数据同步方面,优势极为明显。二次插值同步算法符合IEC60044-8的误差要求,微机测量装置中易于实现,适于实际应用。
In this paper, data synchronization of ECT is proposed. Synchronization method based on linear interpolation is analysed. Then, a new approach based on quadratic interpolation is presented in the paper, and the simulation and error analysis are given. The simulation results show that this method is more accurate, especially in synchronization of harmonic components, and it is very suitable for practical application on consideration of complexity and sampling point requirement of the method.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第15期48-52,共5页
Power System Protection and Control
