基于ARM7的磁悬浮轴承数字控制系统设计  

Design of digital control system based on ARM7 for magnetic bearings

作　　者：张海波[1] 黄平林[1] 

机构地区：[1]中国船舶重工集团公司第710研究所,上海200940

出　　处：《机械研究与应用》2010年第6期69-71,73,共4页Mechanical Research & Application

摘　　要：以ARM7TDMI-S CPU为内核的LPC2131微处理器为核心,设计了同极型四自由度径向主动磁悬浮轴承控制器硬件电路及控制软件,采用变速积分-抗积分饱和增量式数字PID实现了对系统转轴位置及线圈电流的双闭环控制。试验结果表明:磁悬浮轴承具有良好的控制精度及静态刚度,满足了磁悬浮轴承控制性能的初步要求。Based on the ARM7TDM-S CPU,The hardware circuit and control software of controller of the radial four-degree freedom magnetic bearing is designed.Double closed-loop of the coil current and the position of rotational axis are realized by the incremental digital PID controller with changing integration rate and anti-saturation of integrator.The experiment results show that the initial requirements for the control performance is satisfied because of the good controlling accuracy and static stiffness of the magnetic bearings.

关 键 词：磁悬浮轴承 ARM7TDMI-S 增量式数字PID 

分 类 号：TH133.3[机械工程—机械制造及自动化]