Steady State and Dynamic Performance of Shunt FACTS Devices
Keywords:
Flexible AC transmission systems (FACTS}, Power system simulation for engineers (PSS/E) tool, Static volt-ampere reactive (VAR) compensator (SVC), Static compensator (STATCOM)Abstract
Nowadays, the electronic switches are the emergent technology to control the power flow and line losses. In this way, the steady state and dynamic stability of the system is enhanced. In this paper, we have considered the Pakistan National Grid network which has a lot of congestion management issues that leads to enrichment in power operational cost. These issues are becoming frequent due to integration of renewable energy resources. This integration is significantly raised because of increased load demand in the system. However, one of the costeffective solution to this problem is shunt compensation in transmission lines. It increases the transfer capability of transmission lines of existing transmission lines instead of installing new lines in the network. It significantly enhances the stability performances at a lower cost and has shorter installation time. This paper deals with the dynamic modelling of shunt FACTS devices such as SVC, STATCOM in congested QESCO network to alleviate the issues of congestion in this network. This study is carried out in PSS/E tool and comparison of SVC and STATCOM is presented. The simulation results dictated that STATCOM is prior to SVC and it provides the reliable and encouraging results.
