您现在的位置:首页> 外文期刊>IEEE Transactions on Industrial Electronics >文献详情

【6h】Dual Role CDSC-Based Dual Vector Control for Effective Operation of DVR With Harmonic Mitigation

机译基于双角色CDSC的双矢量控制,可有效降低谐波抑制的DVR操作

【摘要】For the effective operation of a dynamic voltage restorer (DVR), a control strategy plays a significant role. This paper presents an enhanced control strategy for DVR using dual role cascaded delay signal cancellation (CDSC)-based dual vector control (DVC) under unbalanced and distorted grid conditions. Based on the numerical analysis, it is found that the CDSC prefilter is a promising solution when grid voltage is distorted by symmetric, asymmetric harmonics, and unbalanced sag. Mainly, the CDSC prefilter extracts instantaneous symmetrical components of the grid voltage required for voltage sags detection and generation of fundamental component of reference voltage for the DVR. A CDSC-based DVC algorithm with inductor current and capacitor voltage feedback is implemented in a synchronous reference frame, which tracks the fundamental DVR reference voltages. An extractor based on the modified CDSC strategy is designed to extract harmonics from load voltage during distorted grid conditions. These extracted harmonic components (nonfundamental) are added in phase opposition with fundamental component and fed to pulse width modulation block to generate reference voltages. Experimental studies are conducted on scaled down (100 V, 0.5 kVA) laboratory prototype DVR to verify the effectiveness of the proposed control algorithm under unbalanced and distorted grid conditions.

【摘要机译】对于动态电压恢复器(DVR)的有效运行,控制策略起着重要作用。本文提出了一种在不平衡和失真的电网条件下使用基于双重作用级联延迟信号消除(CDSC)的双矢量控制(DVC)的DVR增强控制策略。基于数值分析,发现当电网电压因对称,不对称谐波和不平衡骤降而失真时,CDSC预滤波器是一种很有前途的解决方案。主要是,CDSC预滤波器提取电压骤降检测所需的电网电压的瞬时对称分量,并为DVR生成参考电压的基本分量。在同步参考框架中实现了基于CDSC的DVC算法,该模型具有电感器电流和电容器电压反馈,该算法跟踪基本DVR参考电压。基于改进的CDSC策略的提取器设计用于在畸变的电网条件下从负载电压提取谐波。将这些提取的谐波分量(非基波)与基波分量反相添加,并馈入脉冲宽度调制模块以生成参考电压。对按比例缩小(100 V,0.5 kVA)的实验室原型DVR进行了实验研究,以验证所提出的控制算法在不平衡和失真的电网条件下的有效性。

【作者】Anbalagan Karthikeyan;Deshpande Gururaj Abhilash Krishna;Sushant Kumar;B. Venkatesa Perumal;Sukumar Mishra;

【作者单位】Department of Electrical and Electronics Engineering, National Institute of Technology Karnataka, Mangalore, India; Department of Electrical and Electronics Engineering, National Institute of Technology Karnataka, Mangalore, India; Department of Electrical and Electronics Engineering, National Institute of Technology Karnataka, Mangalore, India; Department of Electrical and Electronics Engineering, National Institute of Technology Karnataka, Mangalore, India; Indian Institute of Technology Delhi, New Delhi, India;

【年(卷),期】2019(66),1

【年度】2019

【页码】4-13

【总页数】10

【原文格式】PDF

【正文语种】eng

【中图分类】;

【关键词】Harmonic analysis;Power harmonic filters;Delays;Power quality;Voltage control;Phase locked loops;Filtering theory;

机译 谐波分析;电力谐波滤波器;延迟;电能质量;电压控制;锁相环;滤波原理;
  • 相关文献
  • 联系方式:010-58892860转803 (工作时间) 18141920177 (微信同号)
  • 客服邮箱:kefu@zhangqiaokeyan.com
  • 京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-1 六维联合信息科技(北京)有限公司©版权所有
  • 客服微信
  • 服务号