摘要
有源电力滤波器要求动态补偿准确、实时检出电网中瞬变的畸变电流。针对现有检测方法的不足,提出一种基于离散傅里叶变换的滑窗迭代DFT算法,实时测出谐波参考指令电流。该算法计算量小、容易工程实现,经过扩展,该算法还能应用于检测特定谐波。仿真实验结果验证了该算法的有效性和可行性。
The dynamic compensation of active power filter（APF） demands that the variable current in electrical net should be detected exactly and real-time.To avoid the shortages of existing detection methods of APF,a sliding-window iterative DFT algorithm is proposed for real-time detection of harmonic reference-current.It need less computation and is easy of to implement.The specific harmonic can be detected by extending the proposed algorithm,the feasibility and the effectiveness.
出处
《煤矿机电》
2011年第3期9-11,17,共4页
Colliery Mechanical & Electrical Technology
关键词
滑窗迭代离散傅里叶算法
有源电力滤波器
谐波检测
仿真
sliding-window iterative DFT（Discrete Fourier Transform） algorithm
active power filter（APF）
harmonic detection
simulation
