M.Praveenkumar1,
D.Saravanakumar2, K.Suresh kumar3, P.Pavunraj4
1 2 3UG student- Department of EEE – Vickram College of
Engineering, Enathi Tamilnadu, India.
4Assistant Professor - Department of EEE – Vickram
College of Engineering, Enathi Tamilnadu, India.
Power Quality (PQ) has become an important issue to electricity consumers
at all levels of usage. Power Quality is defined any abnormal behavior on a
power system arising in the form of voltage, current and frequency deviations,
which affects the normal operation of electrical or electronic equipment. Power quality is related to the ability of
utilities to provide electric power without interruption. One of the major
concerns in electric industry today is power quality problem to sensitive
loads. The change of Voltage, current, frequency is leads to Power quality
events such as over voltage,
under voltage, voltage sag, voltage swell, harmonic distortion,
unbalance, transient and flicker may have impact on customer devices, cause
malfunctions and also cost on loss of production.Unified Power Quality
Conditioner (UPQC) is a series converter and shunt converter connected back to
back through dc link in the power system. It protects the consumer at the load end from overvoltage, under
voltage, voltage sag/swell and also provides unity power factor condition at
the utility for different values of load. The main objective of this paper is to
regulate the voltage at source side against any power quality issues like under
voltages, over voltages, sag, swell, flicker and etc. The Total Harmonic Distortion (THD) was reduced and Power Factor was
improved by using UPQC.
