Performance Analysis of Power Quality Improvement for Standard IEEE 14-Bus Power System based on FACTS Controller

Shazly Abdo Mohamed Ahmed


FACTS controllers are power electronics based devices that can rapidly influence the transmission system parameters such as impedance, voltage, and phase to provide fast control of transmission or distribution system behavior. FACTS controllers that can benefit the most from energy storage are those that utilize a voltage source converter interface to the power system with a capacitor on a dc bus. This class of FACTS controllers can be connected to the transmission system in parallel (STATCOM), series (SSSC) or combined (UPFC) form, and they can utilize or redirect the available power and energy from the ac system.  Flexible AC Transmission System (FACTS) devices have been investigated and adopted in power engineering area. There are so many advantages in using FACTS devices. It can increase dynamic stability, loading capability of transmission lines, improve power quality as well as system security. It can also increase utilization of lowest cost generation. When the fault occurs, more reactive power is demand from the system to achieve the fault and return the system to the stable condition. STATCOM regulates system voltage by absorbing or generating reactive power.

In this paper simulation of IEEE 14-bus system with and without STATCOM during a single line to ground fault and three lines to ground fault are investigated. 14-bus system is modeled using the blocks of Simulink. The main objective of this paper is to develop a model of STATCOM for enhancement of power quality.

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