摘要
针对有源滤波器任意次谐波检测补偿精度不高的问题,提出了一种改进型任意次谐波检测法,并在此基础上分析了相位信息在检测计算过程中至关重要的作用,提出放弃锁相环、尽可能减少数字化控制技术带来的滞后与延时,从而在生成目标次谐波指令的同步旋转坐标变换矩阵中,对旋转信号加入不同的相角补偿。利用PSCAD进行仿真分析,对比补偿结果,证明有源滤波器改进型任意次谐波检测法的准确性。
In view of the problem of the low compensation precision in the arbitrary harmonic detection of the active power filter,an improved arbitrary harmonic detection method is proposed.On this basis,the important role of phase information in the process of detection and calculation is analyzed,which is proposed to abandon the phase-locked loop and minimize the lag delay brought by the digital control technology.Thus,the different phase angle compensation is added to the rotating signal in the synchronous rotation coordinate transformation matrix for generating subharmonics instructions.PSCAD(power systems computer aided design)is used for the simulation analysis,and the accuracy of the improved arbitrary harmonic detection method is proved by comparing the compensation results.
作者
李文娟
徐伟
邵学信
Li Wenjuan;Xu Wei;Shao Xuexin(School of Electrical and Electronic Engineering,Harbin University of Science and Technology,Harbin 150080,China)
出处
《实验技术与管理》
CAS
北大核心
2018年第9期118-121,126,共5页
Experimental Technology and Management
基金
黑龙江省高等教育教学改革研究资助项目(SJGY20170549)
关键词
有源滤波器
任意次谐波
锁相环
相角补偿
active power filter
arbitrary harmonics
phase-locked loop
phase angle compensation
