Frequency control of small power system with wind generators installed by using DFIG based diesel generator

In recent years, environmental problems are becoming serious and renewable energy systems, especially wind power generation, have attracted much attention and been introduced into power systems. However, wind power generator output is intermittent, resulting frequency fluctuations in the connected power system. A doubly fed induction generator (DFIG) based diesel generation system is proposed in this paper to suppress the frequency fluctuations of the small power system with the squirrel cage induction generator (SCIG) based wind turbines installed. Simulation analyses have been performed using PSCAD/EMTDC software. The simulation results show that DIFG based diesel generation system is very effective to suppress the frequency fluctuations of the power system compared to conventional synchronous generator (SG) based diesel generation system.