基于TMS320F28335的2D数字伺服阀控制器的设计  

The Design of the 2D Digital Servo Valve Controller Based on TMS320F28335

作　　者：李胜[1] 郭克[1] 孔晨菁 贾文昂[1] 李成蔚 LI Sheng;GUO Ke;KONG Chen-jing;JIA Wen-ang;LI Cheng-wei(Key Laboratory of E&M,Ministry of Education & Zhejiang Province,Zhejiang University of Technology,Hangzhou 310014,China)

机构地区：[1]浙江工业大学特种装备制造与先进加工技术教育部重点实验室,浙江杭州310014

出　　处：《液压气动与密封》2017年第12期42-46,共5页Hydraulics Pneumatics & Seals

基　　金：国家自然科学基金资助项目(51375445);浙江省自然科学基金资助项目(LY15E050018)

摘　　要：2D数字伺服阀独特的结构使其具有体积小、重量轻、抗污染能力强等优点,但其性能在很大程度上取决于其控制器的性能。该文提出了2D数字伺服阀电-机械转换器的位置和电流双闭环控制原理,以TMS320F28335为主控芯片,用全桥驱动芯片DRV8432驱动电机,用电流检测传感器ACS712检测电流,设计了2D数字伺服阀的控制器,实现了2D数字伺服阀电—机械转换器的快速无失步地在任意位置定位,兼具高响应速度和分辨率,同时提高了集成度,减小了控制器的体积。该控制器具有良好的动静态特性,实验表明,电—机械转换器的频宽为250Hz,上升时间为5.3ms;2D数字伺服阀的频宽为180Hz,上升时间为6.5ms。The special structure of the2D digital servo valve has lots of advantages,such as small body size and weight,good anti-pollution ability,and so on.The performance of the2D digital servo valve largely depends on the performance of its controller.This paper uses the position close-loop and the current close-loop control principle to design its controller.The TMS320F28335is used as the master chip,the DRV8432is used to drive the motor,and the current is detected by the current detection sensor ACS712.The design of the2D digital servo valve controller,makes the electro-mechanical converter can be located in any position with high response speed and resolution.Also it reduces the size of the controller and improves the integration.The controller has a good performance in dynamic and static characteristics.Under the control of the controller,the bandwidth of the electro-mechanical converter is250Hz,the rise time of the step response is5.3ms,the bandwidth of the2D digital servo valve is180Hz,and the rise time of the step response is6.5ms.

关 键 词：控制器 2D数字伺服阀 TMS320F28335 设计 

分 类 号：TH137[机械工程—机械制造及自动化]