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This chapter presents design of intelligent controllers for a wind-diesel power system equipped with a wind turbine driving an induction generator. The goal for the design is to maintain a good power quality under varying wind and load conditions. On the other hand, the controller has to show acceptable closed-loop performance including stability, robustness, optimal energy, and steady-state and transient performance at a permissible level of control effort. Moreover, such a controller has to be highly adaptive to various operating conditions and independent of model parameters that might be uncertain. Toward these goals the concepts of fuzzy-robust controller and fuzzy-neural hybrid controller are applied to design integrated non-linear controllers to provide control input for excitation system and governor system simultaneously. [ABSTRACT FROM AUTHOR]