LFC of DFIG-Wind Farm Incorporated Multimachine Power System

As the fossil fuel resources are diminishing rapidly, renewable energy generation and its penetration in power system is the trend in the modern era. In large multimachine power systems, as penetration of renewable energy units like wind energy are increasing day by day, load frequency control (LFC) issue is posing a serious challenge to the power system engineers due to fluctuating nature of the wind. Doubly Fed Induction Generator (DFIG) wind energy generating units being popular due to its capability of harnessing its stored kinetic energy, in the present work, such units are incorporated in all the three areas of 39-Bus New England Power System, separated by a deterministic method considering the power sharing of generators, for LFC study of the system. Furthermore, a latest Fuzzy technique i.e. Fuzzy-tuned PID Controllers (FT-PIDC) are used as LFC controllers and its performance is compared with conventional PID controllers (PIDC) in the LFC study of the DFIG-integrated system. Parameters of FT-PIDC and PIDC are optimized by Multi-objective Grasshopper Optimization Algorithm (MOGHOA).