# [1]史伟伟,唐国庆,李俊.动态电压恢复器的控制策略[J].东南大学学报(自然科学版),2007,37(1):64-69.[doi:10.3969/j.issn.1001-0505.2007.01.015] 　Shi Weiwei,Tang Guoqing,Li Jun.Control strategy of dynamic voltage restorer[J].Journal of Southeast University (Natural Science Edition),2007,37(1):64-69.[doi:10.3969/j.issn.1001-0505.2007.01.015] 点击复制 动态电压恢复器的控制策略() 分享到： var jiathis_config = { data_track_clickback: true };

37

2007年第1期

64-69

2007-01-20

## 文章信息/Info

Title:
Control strategy of dynamic voltage restorer

Author(s):
School of Electrical Engineering, Southeast University, Nanjing 210096, China

Keywords:

TM762
DOI:
10.3969/j.issn.1001-0505.2007.01.015

Abstract:
Regarding the load voltage as control object, the duty ratio of the power devices as control variable, and the utility voltage and load current as interferences, the mathematic model of dynamic voltage restorer(DVR)can be simplified as a single-input and single-output(SISO)system. With the computing method of control variable, the transfer functions from control variable to control object and from interferences to control object are derived. Based on the transfer functions, it is concluded that the compensating performance of DVR is always deteriorated by the load current, especially by its high frequency components. A novel error-correcting control method is proposed then, by which not only the utility voltage feed forward is used but the load current feed forward is also realized. With this method, the influence of the load current is eliminated. Simulation results verified the correctness of theoretical analysis.

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