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基于载波相移技术的H桥级联高压APF研究
引用本文:黄海宏,刘鑫,薛欢,张琛.基于载波相移技术的H桥级联高压APF研究[J].电子测量与仪器学报,2012,26(8):687-692.
作者姓名:黄海宏  刘鑫  薛欢  张琛
作者单位:合肥工业大学,合肥,230009
摘    要:作为高压电力有源滤波器(APF)的预研,采用数字信号处理芯片TMS320F2812为核心搭建了三相H桥级联APF实验样机。以基于瞬时无功功率理论的谐波电流检测算法为基础,对相电流进行分解并进行数学分析,提出一种新的三相谐波及无功电流检测方法,可省去常规谐波及无功电流检测p-q法和ip-iq法中的2次坐标变换,节省控制器计算时间。仿真及实验结果表明实验样机可有效实现谐波补偿。

关 键 词:有源电力滤波器  H桥级联  瞬时无功功率  谐波及无功电流  低通滤波  载波相移

Study of high voltage H-bridges cascaded APF based on carrier phase-shift technique
Huang Haihong , Liu Xin , Xue Huan , Zhang Chen.Study of high voltage H-bridges cascaded APF based on carrier phase-shift technique[J].Journal of Electronic Measurement and Instrument,2012,26(8):687-692.
Authors:Huang Haihong  Liu Xin  Xue Huan  Zhang Chen
Affiliation:Huang Haihong Liu Xin Xue Huan Zhang Chen (Hefei University of Technology, Hefei 230009, China)
Abstract:As preliminary study of high voltage active power filter (APF), an experimental prototype of three-phase H-bridges cascaded APF is built based on digital signal processing chip TMS320F2812. On the base of instantaneous reactive-power theory, the phase current is decomposed and analyzed with mathematical method, and a new detection method of harmonic and reactive currents for three-phase circuit is presented. The proposed method can save calculation time by omitting the process of coordinate transformation, which is used in conventional p-q algorithm and ip-iq algorithm The results of simulation and experiment show that the experimental prototype can realize harmonic current compensation effectively.
Keywords:Active power filter  h-bridges cascaded  instantaneous reactive current  harmonic and reactive currents  low-pass filter  cartier phase-shifted
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