Aim to find out essential factors of communication protocol of the Mitsubishi inverter and improve reliability of industrialization velocitycontrolledsystem.
目的确定三菱变频器通讯协议的要素，提高其构成的工业化调速控制系统的可靠性。
2
Considering the three different moving processes, complete mathematic model of controlledsystem that includes velocity loop of alternating current servomotor, is established.
针对三个不同的运动阶段，建立了包含交流伺服电机速度环的被控系统的完整的数学模型。
3
In view of the result of simulation, LQR regulation is excellent to the PID control system, LQR regulation accuse as velocity steady controlling in the pump-controlled motor system is better.