Title :
Performance improvement of dynamic voltage restorer using proportional - Resonant controller
Author :
Surendran, Vidya ; Srikanth, V. ; Joshi, T. G. Subhash
Author_Institution :
Power & Energy Eng., Amrita Sch. of Eng., Bangalore, India
Abstract :
The tripping of drive systems in process industries are caused due to voltage sag or swell, which results in heavy economic losses. As a solution to this, DVR is reported. By using PI-controller for the control of DVR, a noticeable steady state error is found. But the analysis shows that there is a limitation in giving higher value of gain for the PI-controller, as it magnifies the resonant frequency components. This paper deals with the performance improvement in DVR operation by using PR-controller. Simulation results of the DVR output voltage with PI and PR controllers are depicted and experimental validation of the proposed PR controller is done.
Keywords :
PI control; electric drives; losses; power supply quality; power system restoration; voltage control; DVR; PI-controller; PR controller; drive systems tripping; dynamic voltage restorer; economic losses; process industry; proportional-resonant controller; resonant frequency components; steady state error; voltage sag; voltage swell; Harmonic analysis; Indexes; TV; Voltage control; Dynamic Voltage Restorer (DVR); PI controller; Power Quality (PQ); Proportional Resonant (PR) controller;
Conference_Titel :
Power and Energy Systems Conference: Towards Sustainable Energy, 2014
Conference_Location :
Bangalore
Print_ISBN :
978-1-4799-3420-1
DOI :
10.1109/PESTSE.2014.6805257
