This course introduces the fundamentals of wind turbine control systems, including modelling, analysis and synthesis, with emphasis on offshore energy applications. Students learn how to represent wind turbines as control system objects by modelling their mechanical, aerodynamic and electrical subsystems, as well as wind as an external disturbance. Operational aspects such as energy conversion efficiency, mechanical loading, power quality, and operating modes are considered. Different control strategies are studied, including yaw control, pitch control, torque control, stall regulation, active load control, and generator slip control. Practical knowledge is reinforced through laboratory exercises, linking theoretical models with industrial applications in offshore wind farms.