Trajectory Tracking Control Strategy of Linear Engine/Generator System

Abstract:

Based on the reference relation between piston velocity and piston position in the stable operation stage of the linear engine/generator system, a trajectory tracking control strategy based on PI controller was proposed. A system Simulink model was established which was verified to be accurate by experiment. Simulation results show that when fuel injection quantity fluctuates or misfire happens, the proposed control strategy makes the piston trajectory go back to the reference trajectory within one cycle, realizing an effective and prompt control over piston motion.

Key words:linear engine/generator system; stable operation; trajectory tracking control strategy; misfire control strategy