The study on a dual-feed-forward control of DVR to mitigate the impact of voltage sags caused by induction motor starting

Author

Zhou, Jing ; Zhou, Hui ; Qi, Zhiping

Author_Institution

Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing

fYear

2008

fDate

17-20 Oct. 2008

Firstpage

1497

Lastpage

1500

Abstract

Voltage sag caused by induction motor starting is one of the main causes resulting in sensitive equipment dropout. A simulation model of Dynamic voltage restorer (DVR) has been proposed to mitigate voltage sag caused by high-power induction motor starting. The relationship of starting current and voltage sag depth has been discussed in this paper. Based on these analyses, a control strategy, associating power grid voltage and load current, is introduced to verify the voltage compensation performance of DVR. Simulation results show the effectiveness of the control system.

Keywords

induction motors; power control; power supply quality; starting; DVR; dual feed forward control; dynamic voltage restorer; induction motor starting; sensitive equipment dropout; voltage sags; Coupling circuits; Feedforward systems; Induction motors; Interference; Lighting control; Power quality; Power system protection; Transformers; Voltage control; Voltage fluctuations;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-3826-6

Electronic_ISBN

978-7-5062-9221-4

Type

conf

Filename

4770963