Design of Novel Approach to Mitigate Voltage Sag Caused by Starting an Induction Motor Using Dynamic Voltage Restorer

  • 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
Keywords: Dynamic voltage restorer, Voltage sag, Least error squares filters, Control system, Power quality

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 13 bus IEEE standard network. Finally, the simulation results prove that the proposed control scheme performs satisfactorily under sudden changes of load.

Author Biographies

Mojtaba Kheibar, Shahid Chamran University of Ahvaz
Ahvaz Electricity Distribution Company, Ahvaz, Iran.
M. Joorabian, Shahid Chamran University, Ahvaz, Iran
Shahid Chamran University, Ahvaz, Iran
E. Noori, Ahvaz Electricity Distribution Company, Ahvaz, Iran
Ahvaz Electricity Distribution Company, Ahvaz, Iran
R. Karambeigi, Ahvaz Electricity Distribution Company, Ahvaz, Iran
Ahvaz Electricity Distribution Company, Ahvaz, Iran

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Published
2016-12-03
How to Cite
Kheibar, M., Joorabian, M., Noori, E., & Karambeigi, R. (2016). Design of Novel Approach to Mitigate Voltage Sag Caused by Starting an Induction Motor Using Dynamic Voltage Restorer. Majlesi Journal of Electrical Engineering, 10(4). Retrieved from http://mjee.iaumajlesi.ac.ir/index/index.php/ee/article/view/1936
Section
Articles