基于FPGA的电力谐波分析方法  

Harmonic analysis of electric power based on FPGA

作　　者：马令坤[1] 于新颖[1] 郑恩让[1] 

机构地区：[1]陕西科技大学电气与信息工程学院,陕西西安710021

出　　处：《电源技术》2013年第5期825-827,共3页Chinese Journal of Power Sources

基　　金：国家自然科学基金项目(60972152);陕西省教育厅项目(11JK1015);温州市科技计划项目(H20080001)

摘　　要：电力系统非线性负荷产生的谐波严重地污染了电网的环境,因此分析电网性能,检测控制谐波污染具有重要意义。以周期图功率谱估计为基础,采用按时间抽选的基2DIT-FFT方法,在Altera公司的DE2开发板上,通过构建NiosΠ软核处理器实现了给定电网系统的谐波及其性能分析。实验结果与Matlab仿真结果相同,证明了该法的正确性,且利用实序列的共轭对称性减少了计算量,满足实时处理的要求。The harmonic caused by non-liner load of electric system has seriously polluted the grid environment. So, analyzing grid performance, detecting and controlling the harmonic pollution becomes very important. A method was proposed to analyze the grid system performance, which was on the basis of periodogram power spectrum estimation, applying the 2DIT-FFT, based on DE2 development board of Altera and was implemented with the help of Niosl] processor. The result was the same as the Matlab simulation, and the correctness was proved well by experiment. With the help of conjugate symmetry of real sequences, the computation is simpler, achieving real-time performance of the method.

关 键 词：电力谐波分析 现场可编程门阵列 NiosΠ 快速傅里叶变换 

分 类 号：TM711[电气工程—电力系统及自动化]