摘要
针对目前电力系统谐波检测方法都存在的一定的缺点与不足,分析了各种检测方法的利弊,提出了一种基于FPGA电力系统谐波检测的新方法,结合FFT谐波检测理论的特点,通过理论分析和硬件电路设计,实现了FFT算法的高测量精度检测。采用MATLAB的SimPowerSystems和Simulink模块对系统进行建模仿真,结果表明:该电力系统谐波检测的新方法,达到了高速度、高精度的算法要求,提高了系统的实时性,完全可以达到抑制谐波的目的,实验系统电流的谐波总畸变率由有源滤波器投入前的20.78%降至1.32%。
Aiming at shortcoming and insufficiency of harmonics measurement in power system , this article analyzes the characteristics of the principle of FFT harmonics measurement, provides a new way of harmonics measurement in power system based on FPGA and studies the characteristics of FPGA chip and the advantages of FFr harmonics measurement. The principle analyzing and simulation result shows that the new way of harmonics measurement in power system meets the arithmetic requires ments of high speed and high precision, and improves the real time ability of the system. It achieves the purpose of harmonics restraints totally.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2008年第5期721-724,共4页
Journal of Liaoning Technical University (Natural Science)
基金
辽宁省教育厅基金资助项目(20060392)
