Digital controller for hybrid filter in HVDC based on approximate inverse system  

作　　者：SU Ling ZHAO Dong-yuan CHEN Jian-ye WANG Zan-ji 

机构地区：[1]Department of Electronic Engineering,Tsinghua University,Beijing 100084,China [2]Electric Power Research Institute,Beijing 100085,China

出　　处：《Frontiers of Electrical and Electronic Engineering in China》2006年第4期367-370,共4页中国电气与电子工程前沿（英文版）

基　　金：supported by the National Plan-ning Committee(No.2002064).

摘　　要：In order to eliminate the characteristic harmonics in high voltage direct current(HVDC)transmission systems and to simplify the analog controller structure,this paper proposes a new digital controller by adopting an approximate inverse system control strategy according to the frequency response characteristic of the hybrid power filter.The pro-posed digital controller is implemented with a TMS320C32 DSP,including a series of parallel digital band-pass filters,phase shifters and amplifiers.The results of both simulations based on PSCAD and experiments on a 30 kVA HVDC system prove that the proposed digital control system is sta-ble and efficient for eliminating the harmonics.

关 键 词：HVDC digital controller active power filter(APF) digital filter 

分 类 号：TM7[电气工程—电力系统及自动化]