A Scheme of Dynamic Voltage Restorer to Improve Power Quality in Large Scale Industrial Enterprises  

作　　者：Shan Shi Jun Xiao Shu Liu Liming Tu Qin Cao Yu Liang Gaoyan Zhang Chengxiong Mao Shan Shi;Jun Xiao;Shu Liu;Liming Tu;Qin Cao;Yu Liang;Gaoyan Zhang;Chengxiong Mao(Beijing Sifang Automation Co., Ltd., Beijing 100085, China;School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China)

机构地区：[1]Beijing Sifang Automation Co., Ltd., Beijing 100085, China [2]School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

出　　处：《Journal of Power and Energy Engineering》2016年第2期19-26,共8页电力能源（英文）

摘　　要：Loads in large scale industrial enterprises are always various and complex, causing insecure power quality. Meanwhile, some sensitive loads or precise instruments demand for high power quality. When voltage flicker or harmonics occurs, dynamic voltage restorer (DVR) can be used to stabilize the load-side voltage, which is a good manner of improving power quality. The paper explains the load demand in large scale industrial enterprises, analyzes several common voltage compensation scheme of DVR, and comes up with another voltage compensation scheme of DVR applied for double power supply with double load. A Simulink model according to the new scheme is also built in MATLAB/Simulink to test its performance. Simulation results show that the proposed scheme can guarantee the load-side voltage stability, which is an effective scheme for managing power quality.Loads in large scale industrial enterprises are always various and complex, causing insecure power quality. Meanwhile, some sensitive loads or precise instruments demand for high power quality. When voltage flicker or harmonics occurs, dynamic voltage restorer (DVR) can be used to stabilize the load-side voltage, which is a good manner of improving power quality. The paper explains the load demand in large scale industrial enterprises, analyzes several common voltage compensation scheme of DVR, and comes up with another voltage compensation scheme of DVR applied for double power supply with double load. A Simulink model according to the new scheme is also built in MATLAB/Simulink to test its performance. Simulation results show that the proposed scheme can guarantee the load-side voltage stability, which is an effective scheme for managing power quality.

关 键 词：Power Quality Large Scale Enterprises Double Power Supply with Double Load DVR Compensation Scheme 

分 类 号：TN9[电子电信—信息与通信工程]