A Novel Method for Energy Optimization of Dynamic Voltage Restorer by Using Phase Advance Compensation and In-Phase Technique

Author(s):

Aakansha Sharma , GITS, Udaipur

Keywords:

Dynamic Voltage Restorer, Energy Optimization, In-phase Compensation, Phase Advance Compensation

Abstract:

Nowadays, power quality issues are the major problem faced by the utilities, as well as by both industrial and commercial electrical consumers. Voltage sag and swell is the origin of 90% power quality problems. A dynamic voltage restorer is a custom power device used to correct the voltage disturbances by injecting voltage as well as power into the system. In this paper, a new control strategy is proposed, so as to reduce the energy used to compensate the voltage sag/swell. In this proposed control strategy, when balanced sag occurs, the voltage compensation will result in phase advancement of the load voltage and when unbalanced sag occurs, compensated load voltage will be in-phase with the sag-voltage. The control logic has been extended to control the voltage swell also. By using this control, the active power injection/absorption during the balanced sag/swell is reduced. The simulations have been done on the MATLAB. Simulation results show that the voltage compensation occurs for voltage sag and swell.

Other Details:

Manuscript Id	:	RMSCRP042
Publication Date	:	05/04/2017
Page(s)	:	177-187

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