Servo design and analysis of thrust vector control of launch vehicle

Servo design includes the modelling of BLDC motor and to design a proper compensator to meet the launch vehicle requirements. Compensator design is based on step response of the open loop plant. A compensation scheme including PI controller and a notch filter is thus included in the plant to meet the plant requirements. Brush less torque motor, which is used as the actuator is used to control the engine. The system is closed using the compensator. From the step response of the closed loop system it is inferred that the system along with the compensation scheme is ready for thrust control of launch vehicles.