| 无锁相环ip-iq法在有源滤波器中的实现 |
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| 引用本文： | 尉冰娟,王明渝,张淑国. 无锁相环ip-iq法在有源滤波器中的实现[J]. 电力系统及其自动化学报, 2006, 18(2): 50-53,62 |
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| 作者姓名： | 尉冰娟 王明渝 张淑国 |
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| 作者单位： | 重庆大学电气工程学院,重庆,400044;北京电力公司客户服务中心,北京,100005 |
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| 基金项目： | 重庆大学高电压与电工新技术教育部重点实验室访问学者资助项目 |
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| 摘 要： | ip-iq法能准确实时地检测出不对称三相系统中的有害电流,它不受零序电流的影响,可以直接用于不对称系统中谐波及无功电流的检测,是目前广泛应用的一种谐波及无功电流检测方法。文中介绍了ip-iq坐标变换的谐波电流检测法的基本原理,在此基础上提出了一种无锁相环的实现方法。分析指出,ip-iq谐波电流检测方法坐标变换过程中,C变换矩阵的频率偏差对检测结果不构成影响。并通过仿真验证了该方法是准确可行的。
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| 关 键 词： | 谐波电流 检测方法 锁相环 有源滤波器 |
| 文章编号： | 1003-8930（2006）02-0050-04 |
| 收稿时间： | 2005-04-21 |
| 修稿时间： | 2005-04-212005-05-30 |
Realization of ip-iq Method without Phase Lock Loop in Active Filter |
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| WEI Bing-juan,WANG Ming-yu,ZHANG Shu-guo. Realization of ip-iq Method without Phase Lock Loop in Active Filter[J]. Proceedings of the CSU-EPSA, 2006, 18(2): 50-53,62 |
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| Authors: | WEI Bing-juan WANG Ming-yu ZHANG Shu-guo |
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| Affiliation: | 1. School of Electrical Engineering,Chongqing University, Chongqing 400044, China ; 2. Customer Service Center, Beijing Electric Power Company, Beijing 100005, China |
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| Abstract: | Because i_p-i_q detecting method can detect harmful currents accurately and real-timely and will not be affected by zero-sequence current,it can be directly used in detection of harmonic and reactive current in unsymmetrical system.At present,it is a widely used method for harmonic and reactive current detecting in active power filters.The basic principle of i_p-i_q harmonic current detection is presented and on this basis an implementation method without phase lock loop(PLL) is put forward.It is concluded that the detection results will not be influenced by frequency offset in the C matrix transformation process of i_p-i_q harmonic current detecting method.The simulation results prove that the presented method is accurate and feasible. |
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| Keywords: | harmonic current detecting method phase lock loop(PLL) active filter |
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