Power Quality Improvement of PMSG Based DG Set  Feeding Three-Phase Loads

Power Quality Improvement of PMSG Based DG Set Feeding Three-Phase Loads
Author(s):
A.Srilekha, P.Soumya
Keywords:
STATCOM, VSC, IGBTs, PMSG, PWM, DG Set, Power Quality.
Abstract
Power quality improvement of PMSG (Permanent Magnet Synchronous Generator) based on DG (Diesel Generator) set feeding three-phase loads using STATCOM (Static Compensator). A 3-leg VSC (Voltage Source Converter) with a capacitor on the DC link is used as STATCOM. The reference source currents for the system were estimated using an algorithm named as adaline. A PWM (Pulse Width Modulation) current controller is used for generation of gating pulses of IGBTs (Insulated Gate Bipolar Transistors) of three leg VSC of the STATCOM. The STATCOM is able to provide voltage control, harmonics elimination, power factor improvement, load balancing and load compensation. The performance of the system was tested on various types of loads under steady state and dynamic conditions. A 3-phase induction motor with variable frequency drive is used as a prototype of diesel engine with the speed regulation. Therefore, the DG set is run at constant speed so that the frequency of supply remains constant irrespective of loading condition.
Article Details
Unique Paper ID: 144773 Publication Volume & Issue: Volume 4, Issue 3 Page(s): 139 - 145
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