Design of Novel Approach to Mitigate Voltage Sag Caused by Starting an Induction Motor Using Dynamic Voltage Restorer
Publish place: majlesi Journal of Electrical Engineering، Vol: 10، Issue: 4
Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_MJEE-10-4_004
تاریخ نمایه سازی: 12 شهریور 1402
Abstract:
In this paper a new control strategy for dynamic voltage restorer (DVR) is presented to compensate effectively voltage sags. In this strategy, load and supply voltage magnitude and angle are estimated by least error square in short time. Advantage of this method is reducing noise, distortion and harmonic on estimation parameters. Accordingly, these parameters are controlled for each phase separately. Also, it should be noted that due to angle estimation by LES filters, control system does not require phase-locked Loop and this issue causes increase in speed of control system response. In addition, a P+Resonant and Posicast controller are used to eliminate the steady-state error and improve transient response in DVR, respectively. The proposed control system is simulated, using PSCAD/EMTDC software by induction motors starting is connected to ۱۳ bus IEEE standard network. Finally, the simulation results prove that the proposed control scheme performs satisfactorily under sudden changes of load.
Keywords:
Dynamic Voltage Restorer , en , Voltage sag , Least error squares filters , Control system , Power Quality
Authors
Mojtaba Kheibar
Shahid Chamran University of Ahvaz
M. Joorabian
Shahid Chamran University, Ahvaz, Iran
E. Noori
Ahvaz Electricity Distribution Company, Ahvaz, Iran
R. Karambeigi
Ahvaz Electricity Distribution Company, Ahvaz, Iran
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