TITLE:
Realization of Unified Power Quality Conditioner for Mitigating All Voltage Collapse Issues
AUTHORS:
Parthasarathy Pugazhendiran, Jeevarathinam Baskaran
KEYWORDS:
Power Quality Conditioner, Voltage Sag (Dip), Voltage Swell, Current Harmonics Mitigation, Power Quality Improvement
JOURNAL NAME:
Circuits and Systems,
Vol.7 No.6,
May
13,
2016
ABSTRACT: This paper proposes about
a powerful control mechanism of UPQC (Unified Power Quality Conditioner) work
on voltage source inverter which can effectively compensate source current
harmonics and also mitigate all voltage collapse such as dip, swell, voltage
unbalances and harmonics. The consolidation of series and parallel active power
filters sharing mutual DC bus capacitor forms UPQC. PI (Proportional Integral)
controller is mainly used in order to maintain continual DC voltage along with
the hysteresis current controller. The parallel and series power filters were
designed using 3-phase voltage source inverter. The reference signals for shunt
and series active power filters were obtained by Synchronous Reference Frame
(SRF) theory and Power Reactive (PQ) theory respectively. By using these
theories, reference signals were obtained which was fed to the controllers for
generating switching pulses for parallel and series active filters. The UPQC
dynamic performance is obtained through testing terms like the compensation of
voltage, current harmonics and all voltage distortion associated with 3-phase
3-wire power system which is simulated using MATLAB-Simulink software.