| 基于瞬时无功理论的谐波和无功电流检测方法 |
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| 引用本文： | 周林,孟婧,刘强,徐会亮,吴红春.基于瞬时无功理论的谐波和无功电流检测方法[J].高电压技术,2009,35(2):385-392. |
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| 作者姓名： | 周林 孟婧 刘强 徐会亮 吴红春 |
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| 作者单位： | 周林,刘强,徐会亮,吴红春,ZHOU Lin,LIU Qiang,XU Hui-liang,WU Hong-chun(重庆大学电气工程学院高电压与电工新技术教育部重点实验室,重庆,400044);孟婧,MENG Jing(重庆大学电气工程学院高电压与电工新技术教育部重点实验室,重庆,400044;四川西星电力科技咨询有限公司,成都,610016)
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| 摘 要： | 瞬时无功理论自上世纪80年代被提出,并成为专家学者的研究热点,经逐步完善和检测方法的改进,在许多方面都得到了成功的应用。为达到无功电流检测的最佳效果,在全面地归纳总结了近些年各方学者提出的基于瞬时无功理论的谐波和无功电流的改进方法后,按照算法的拓扑结构,将其分为锁相环节、矢量变换环节、滤波环节以及整体电路这4个方面进行分类介绍,同时比较了它们的优缺点。研究表明,不同环节的改进方法可以相互组合,以应用于不同的检测情况,从而达到最佳的检测效果,降低对系统硬件的准确度要求。另外,每种改进方法都有其应用限制,在采用多种方法结合使用前一定要加以论证,否则应用时会产生额外误差。
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| 关 键 词： | 谐波检测 无功电流 瞬时无功理论 锁相环(PLL) 低通滤波器(LPF) 矢量变换 电路结构 |
Detecting Methods of Harmonics and Reactive Current Based on Instantaneous Reactive Power Theory |
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| ZHOU Lin,MENG Jing,LIU Qiang,XU Hui-liang,WU Hong-chun.Detecting Methods of Harmonics and Reactive Current Based on Instantaneous Reactive Power Theory[J].High Voltage Engineering,2009,35(2):385-392. |
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| Authors: | ZHOU Lin MENG Jing LIU Qiang XU Hui-liang WU Hong-chun |
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| Affiliation: | 1.The Key Laboratory of High Voltage Engineering and Electrical New Technology;Ministry of Education;Electrical Engineering College of Chongqing University;Chongqing 400044;China;2.Sichuan Xixing Electric Power Technology Consulting Co.;Ltd;Chengdu 610016;China |
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| Abstract: | This paper concludes many ameliorative methods of detecting harmonics and reactive current for power systems based on the theory of reactive power.The advantage and the theory are introduced about those new methods from the amelioration of PLL,vector commutation,LPF and circuit.In addition,these improved methods can be combined mutually,applying in the different examination circumstance to attain the best examination result,lowering the accuracy request to the system hardware.Moreover,all the methods have t... |
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| Keywords: | harmonics detection reactive current instantaneous reactive power theory PLL LPF vector commutation circuit structure |
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