Title :
A sliding mode controller based optimum UPQC with minimum VA loading
Author :
Kolhatkar, Y.Y. ; Errabelli, Rammohan Rao ; Das, S.P.
Author_Institution :
Indian Inst. of Technol., Kanpur, India
Abstract :
The paper deals with an optimized unified power quality conditioner (UPQC), which aims at the integration of series active and shunt active power filters with minimum VA loading of the UPQC. The series active filter is a dynamic voltage restorer (DVR), which is operated in twofold functioning mode. During the unbalanced voltage sag, the DVR compensates the unbalance in the voltage sag. It also regulates the voltage at the load end with minimum VA loading of the overall UPQC by voltage injection at optimum angle. Sliding mode controller with constant frequency is employed to ensure the exact tracking of the reference voltage by DVR. Validity of the proposed scheme is proved through extensive simulation results.
Keywords :
active filters; power filters; power supply quality; variable structure systems; voltage control; VA loading; active power filters; dynamic voltage restorer; sliding mode controller; unified power quality conditioner; voltage injection; voltage regulation; Active filters; Automatic voltage control; Power electronics; Power quality; Pulse width modulation inverters; Reactive power; Sliding mode control; Switching converters; Voltage control; Voltage fluctuations;
Conference_Titel :
Power Engineering Society General Meeting, 2005. IEEE
Print_ISBN :
0-7803-9157-8
DOI :
10.1109/PES.2005.1489536
