摘要
行波测距理论具有计算速度快精度高的特点,但是实际工作中电网故障测距大都仍然采用的是潮流计算和区间估计等传统方法,无法对故障快速定位以进行修复。行波测距在工程中难以得到应用的原因是数据流量大、计算量大,硬件开发成本高、周期长。将计算复杂度低、适合硬件实现的提升小波变换和开发简便、出品周期短的FPGA相结合,成功使以前在上位机实现的行波测距在硬件上得以实现。为工程中快速定位电网故障提供了可行方案。
The traveling wave fault location theory have fast computation speed and high precision.However,in practice the grid fault location are still using the power flow calculation and interval estimation and other traditional methods,could not find out the fault position immediately for repair.The traveling wave fault location need to process large quantity of data,great amount of calculation,and long hardware developing term with high cost,so it is difficult to be used in project.This paper united the lifting wavelet transform,which has less computational complexity and convenient for hardware implementation,and the FPGA,which has short developing term and easy for developing.
出处
《工业控制计算机》
2014年第4期20-22,共3页
Industrial Control Computer
关键词
行波测距
单端测距
FPGA
提升小波
traveling wave fault location,single-terminal Iocation,FPGA, lifting wavelet
