Design and performance evaluation of self-supported dynamic voltage restorer for mitigating various power quality problems
by Shubhendra Pratap Singh; Abdul Hamid Bhat
International Journal of Power Electronics (IJPELEC), Vol. 12, No. 1, 2020

Abstract: In this paper, reduced-rule fuzzy logic controller based on calculation of unit templates is used for controlling of self-supported dynamic voltage restorer (DVR). In this controller, there is no need of mathematical model of the plant and it can efficiently provide control signals for DVR during various types of power quality problems at the source side and protect the voltage sensitive loads from these disturbances. The result of this technique is better than the other existing techniques and it is very simple to implement, less complex, very flexible and robust in nature. For the same system parameters, the fuzzy logic-based controller uses the less amount of reactive power to mitigate the various disturbances at source side compared to PI-based controller, which, in turn, leads to less rating of IGBTs and therefore less cost for the device.

Online publication date: Mon, 13-Jul-2020

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