Z-sourced unified power flow controller

Abstract

This paper presents a brief review of Z-source converter. This converter employs a unique impedance network to couple the converter main circuit to the power source thereby overcoming the limitations of the traditional converters and provides a novel power conversion concept. This new converter topology is examined with Unified Power Flow Controller(UPFC) and a simulation study was carried out in MATLAB-Simulink. The results of simulation indicate that Z-source converter(ZSC) can be a good alternative to Voltage Source Converters(VSC). Further investigations are being carried out to assess its suitability and its superiority for UPFC applications.

Studies on the response characteristics of Z-unified power flow controller(Z-UPFC)

“…Eduardo and Luis [4] have presented the analysis of the Zsource highlighting many interesting features of Z-source. In [5] a few results of Z-UPFC were highlighted.…”

“…These are described in [5]- [6]. The performance of the phase angle control scheme under dynamic conditions is not good due to the coupling between the d -and q-axes.…”

Voltage Stability of Long Transmission Line Equipped with a Thyristor Controlled Series Capacitor

“…It is becoming increasingly important to fully utilize the existing transmission system assets due to environmental legislation, rightsof-way issues and costs of construction and deregulation policies that introduced in recent years. A number of Flexible AC Transmission System (FACTS) controllers, based on the rapid development of power electronics technology, have been proposed for better utilization of the existing transmission systems (Gonzalez et al, 2010;Sonmez et al, 2012;Thirumalaivasan et al, 2012;Wibowo et al, 2011).…”