Unified Power Quality Conditioner (UPQC) for the Mitigations of Power Quality Problems in Distribution System
M. Kalyanasundaram1, Merin P.George2, S. Suresh Kumar3
1M. Kalyanasundaram, Electrical and Electronics Department, Vivekanandha College of Engineering for Women, Tiruchengode, Tamil Nadu, India.
2Merin P. George, Electrical and Electronics Department, Vivekanandha College of Engineering for Women, Tiruchengode, Tamil Nadu, India.
3Dr. S. Suresh Kumar, Chairman IET, Principal, Vivekanandha College of Technology For Women, Tamil Nadu, India.
Manuscript received on March 12, 2013. | Revised Manuscript received on April 09, 2013. | Manuscript published on April 30, 2013. | PP: 569-673 | Volume-2, Issue-4, April 2013. | Retrieval Number: D1436042413/2013©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The Unified Power Quality Conditioner (UPQC) is a versatile device which could function as both series filter and shunt filter. The main concern in this paper is to introduce a new concept of UPQC for mitigating different power system problems. The new concept is known as the UPQC-S, in which the series inverter of UPQC is controlled to perform the simultaneous voltage sag/swell compensation and load reactive power sharing with shunt inverter. The reference voltage signal for controlling the series inverter is generated using the UPQC controller based on PAC approach. The Active Power Control approach is integrated with the theory of Power Angle Control approach to perform the two functions simultaneously. The controlling of shunt inverter of UPQC-S is done using PSO based fuzzy logic controller. Computer simulation by MATLAB, SIMULINK has been used to support the developed concept.
Keywords: Power Angle Control (PAC), power quality, reactive power compensation, Active power filter (APF), unified power quality conditioner (UPQC), voltage sag and swell compensation, PSO(Particle Swarm Optimization), VA loading, Fuzzy Logic Controller.