Design and Implementation of Maximum Power Point Tracker and Grid-Tied Voltage Source Inverter

Abstract

For maintaining the stability of electric power
system it is necessary to keep voltage profile within the
limits. Due to faults, fluctuations of load (voltage sags and
voltage swells) are produced, so it is very difficult to
maintain the voltage in all buses. Sustain better economy
and useful operations of end user equipment require
continuous and superior quality of power. In order to keep
the power system stable and provide power with good
quality there is need of advance techniques to eliminate
issues of Power Quality (PQ) such as voltage swells and
sags and make power system more reliable. The perception
of Flexible alternating current transmission systems
(FACTS) devices is relying on power electronic controllers,
these devices are very useful to enhance the performance
of transmission system by maximize the utilization of their
ability. FACTS devices make the ac transmission network
flexible by adapting the altering stipulation caused by
contingencies and load variation. In this research paper,
unified power flow controller (UPFC), one of the
significant associate of FACTS Technology is used to make
power system further consistent. Simulation without and
with UPFC is done in MATLAB/Simulink software to see
the effectiveness of UPFC for resolving power quality
issues. Close loop simulation is completed with the help of
proportional integral derivative (PID) controller. A
comparison has been made between open loop and close
loop. To authenticate the performance of UPFC the
outcomes of simulation are given.