直线电机/发动机系统轨迹跟踪控制策略

Trajectory Tracking Control Strategy of Linear Engine/Generator System

摘要:

根据直线电机/发动机系统稳定运行时的活塞速度和位置关系，提出了基于比例积分（PI）控制器的活塞轨迹跟踪控制策略，并搭建了系统的仿真模型，用试验验证了仿真模型的精确性.仿真结果表明，在喷油量发生波动甚至失火时，该控制策略使得活塞轨迹在扰动发生后的首循环内就能回归参考轨迹，实现了对于活塞运动的有效和快速控制.

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.