直驱式容积控制电液伺服系统设计与实现

摘要

Electro-hydraulic servo system of direct drive volume control based on permanent magnet synchronous motor combines the advantages of AC servo technology,has a broad market prospect.Realized permanent magnet servo system speed loop,current loop control based on double closed loop vector control,and ultimately realized the position loop control of the electro-hydraulic system.Developed a 5000 N· m valve control electro-hydraulic servo system for a coke plant.Position loop parameters adaptive method was proposed to improve valve control system's response speed and steady-state accuracy.Experimental results show that the valve control system based on permanent magnet synchronous motor running reliable,fast and have good control accuracy.%基于永磁同步电机的直驱式容积控制电液伺服系统融合了交流伺服技术的优势,具有广阔的市场前景.基于双闭环矢量控制算法实现了永磁同步伺服系统的转速环、电流环控制,最终实现了电液系统的位置环控制.研制了1台用于焦炭厂的5000 N·m阀门控制电液伺服系统.提出了位置环参数自适应的方法,有效地改善了阀门响应速度和稳态精度.实验结果表明,基于永磁同步电机设计的阀门控制系统运行可靠、快速性好,控制精度高.