The Development and Design of an All-Digital EMA AC Servo System

The actuator servo system is an essential part of the missile system, whose characteristics directly affect the missile's performance. An all-digital electromechanical actuator (EMA) system is designed based on field-oriented vector control principle, and its prototype is developed, which has fast transient response, high static accuracy and small torque ripple, runs smoothly at low speed and are particularly applicable to high performance speed control cases as in an actuator system.