气浮电动缸功率匹配分析与控制算法设计

Power Matching Analysis and Control Algorithm Design of Air-float Electric Cylinder

针对承担重载的电驱机构存在运行功率大、机械结构易磨损等问题,论文介绍了一种气浮电动的联合驱动方案,首先分析了气浮电动缸的工作原理及电、气驱动力和功率匹配情况,然后把电动系统功率作为预测变量,以降低电动系统功率为目的,设计了气动系统模型预测控制(MPC)算法。仿真结果显示,应用MPC算法后的气动系统分担了较大驱动力,降低电动系统功率效果显著。

To address the problems of high operating power and easy wear of the mechanical structure of the electric drive mechanism bearing heavy load,this paper introduces a combined air-float electric drive scheme.Firstly,the working principle of the air-float-electric cylinder and electric and air driving force and power matching are analyzed,and then the pneumatic system model predictive control(MPC)algorithm is designed to reduce the electric system power by taking the electric system power as a prediction variable.The simulation result shows that the pneumatic system after applying MPC algorithm shares a larger driving force and reduces the electric system power significantly.