ABSTRACT
The renewable energy sources (RES) certainly affect the dynamic behavior of the power system in a way that might be different from conventional generators. This chapter provides the automatic generation control (AGC) system and related issues concerning the integration of new renewable power generation in power systems with a new perspective. It presents the impact of power fluctuation produced by variable renewable sources on system frequency performance. The power outputs of some RESs, such as solar and wind power generation systems, are dependent on weather conditions, seasons, and geographical location. The chapter introduces an updated power system frequency response model for AGC analysis considering RESs and associated issues. It also presents some nonlinear time-domain simulations on the standard nine-bus and thirty-nine-bus test systems to show that the simulated results agree with those predicted analytically. The chapter discusses emergency frequency control concerning RESs, and highlights the need for revising the frequency performance standards, further research, and new intelligent AGC schemes.
