A Novel Technique to Improve Power Quality Using FUZZY Logic Controller With Transformer less Dynamic Voltage Restorer

Author(s):

DILAVAR BASHA K , RMKCET; P PRASAD, SKB Control Panels

Keywords:

Power Quality, Dynamic voltage Regulator, Fuzzy Logic

Abstract:

Power quality problems such as voltage sags are presently important issues in the industrial field. The dynamic voltage restorer (DVR) is a series compensation device that mitigates voltage sag problems. Due to the nonlinearity of the DVR dynamic characteristics, the compensating performance of the DVR is affected much by its control strategy. In this paper, fuzzy logic control is proposed to enhance the compensating performance of the transformer-less DVR. Recently new FL methods have been applied to Custom Power Devices, especially for active power filters. The operation of DVR is similar to that of active power filters in that both compensators must respond very fast on the request from abruptly changing reference signals. Simulation studies were conducted to show that the proposed fuzzy logic DVR control is very effective in damping the system oscillations and improving the compensating performances compared to the traditional PI control.

Other Details:

Manuscript Id	:	IJSTEV1I10083
Published in	:	Volume : 1, Issue : 10
Publication Date	:	01/05/2015
Page(s)	:	109-114

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