Development of the Unified Series-Shunt Compensator for Power Quality Mitigation

Abstract

This study describes the derivation of an analytical model and simulation for the unified series-shunt compensator (USSC) for investigating power quality in power distribution system. The USSC simulation comprises of two 12-pulse inverters which were connected in series and in shunt with the system. A generalized sinusoidal pulse width modulation (SPWM) switching technique was developed in the proposed controller for fast control action of the USSC. Simulations were carried out using the PSCAD/EMTDC electromagnetic transient programs to examine the performance of the USSC model. Simulation results from the proposed model demonstrated the performance of the USSC and its effectiveness for voltage sag compensation, flicker reduction, voltage unbalance mitigation, power flow control and harmonics elimination.

Evaluation of Critical Clearing Time of Power System Equipped With a Series FACT Devices

“…(Chen, 2011;Kouzou et al, 2010;Kumkratug, 2010a;Omar et al, 2010;Zhihuan, et al, 2010;Osuwa and Igwiro, 2010). They have proposed many methods to improve stability of power system such as load shedding, High Voltage Direct Current (HVDC), Flexible AC Transmission system (FACTS), etc (Al-Husban, 2009;Barbuy et al, 2009;Hannan et al, 2009;Kumkratug, 2010b;Mohammadi-Ivatloo, 2009;Sahoo, et al, 2010;Zarate-Minano et al, 2010).…”

Untitled

“…It consists of two solid state converters. They are coupled through a common DC link (Hannan et al, 2009;Jiang et al, 2008). To verify the capability of UPFC on transient stability enhancement, its suitable mathematical model and control strategy are needed to be presented.…”

Nonlinear Control Design of Shunt Flexible AC Transmission System Devices for Damping Power System Oscillation

“…Flexible AC Transmission System (FACTS) devices have been proposed to improve stability of power system Hassan et al, 2010a;Fernandes et al, 2009;Omar et al, 2010;Osuwa and Igwiro, 2010;Santos et al, 2010). They have proposed many methods to improve stability of power system such as load shedding, High Voltage Direct Current (HVDC), Flexible AC Transmission system (FACTS), (AlHusban, 2009;Hassan et al, 2010b ;Kumkratug, 2010;Meshkatoddini et al, 2009;Hannan et al, 2009;Zarate-Minano et al, 2010).…”