Impact of SCIG, DFIG Wind Power Plant on IEEE 14 Bus System with Small Signal Stability Assessment

Abstract

In power systems voltage stability is a key issue which attracts worldwide attention. This research presents an implementation of a modified IEEE 14 bus system model in Power System Analysis Toolbox (PSAT) – free and open source software. A newly developed Squirrel Cage induction generator (SCIG) and Doubly Fed Induction Generator (DFIG) wind turbine model are modeled and connected to a modified IEEE 14 bus system. This paper investigates the impact of Squirrel Cage induction generator (SCIG) and Doubly Fed Induction Generator (DFIG) on the power system stability. Here considered wind generators are SCIG which is fixed speed and DFIG is variable speed. Small signal stability study has been conducted on a modified IEEE 14 bus system with SCIG, DFIG wind turbine systems and their simulation results have been analyzed in this paper.