A Novel SPLL and Voltage Sag Detection Based on LES Filters and Improved Instantaneous Symmetrical Components Method

被引：34

作者：

Chen, Guodong ^{[1
,2
]}

Zhang, Liang

Wang, Ruiting ^{[2
]}

Zhang, Luhua ^{[2
,3
]}

Cai, Xu ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Key Lab Control Power Transmiss & Transformat, Wind Power Res Ctr, Sch Elect Informat & Elect Engn, Shanghai 200030, Peoples R China

[2] Shanghai Elect Power Transmiss & Distribut Grp, Technol Ctr, Shanghai 200042, Peoples R China

[3] Nanjing Inst Technol, Sch Power Elect Engn, Nanjing 211167, Jiangsu, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2015年 / 30卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Cascaded H-bridge; dynamic response; least error squares (LES) filter; symmetrical components; voltage sag detection; PERFORMANCE IMPROVEMENT; RESTORER; DVR; COMPENSATION; CONTROLLER; INVERTERS; ALGORITHM; PLL;

D O I：

10.1109/TPEL.2014.2318051

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The software phase-locked loop and the voltage sag detection algorithm are the two key factors to evaluate the performance of a dynamic voltage restorer, whose dynamic response is usually impacted by phase jump, voltage unbalance, and harmonics of the grid voltage. This paper proposes a novel algorithm based on the combination of least error squares filters and an improved instantaneous symmetrical components method. Hence, a detailed theoretical procedure is first presented. Then, the simulation model is built in MATLAB/SINMULINK. To verify its effectiveness, a series of comparison and analysis have been carried out. Also, a 10-kV/2-MVA prototype is developed with a voltage sag generator platform. Finally, experiments have been done and the results show that the novel algorithm has an improved dynamic response compared with the traditional methods.

引用

页码：1177 / 1188

页数：12

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