基于永磁同步电机驱动定量泵的恒压变流量控制系统  

Constant Pressure Variable Flow Control System with Permanent Magnet Synchronous Motor Driven Fixed Displacement Pump

作　　者：贾永峰[1] 谷立臣[2] 

机构地区：[1]陕西交通职业技术学院汽车工程系,陕西西安710018 [2]西安建筑科技大学机电工程学院,陕西西安710054

出　　处：《液压气动与密封》2014年第9期42-44,76,共4页Hydraulics Pneumatics & Seals

基　　金：陕西省教育厅资助项目(12JK0682)

摘　　要：针对传统异步电机驱动恒压变量泵动力系统在实际应用中存在结构复杂、抗油液污染能力差、原动机功率因数和效率低等缺陷,利用永磁同步电机节能、调速性能好与齿轮油泵可靠性高的技术特点相结合,并引入压力负反馈控制,设计了一种新型恒压动力系统。试验及仿真结果表明:伺服驱动定量泵恒压动力系统能够自动适应负载流量变化保持压力恒定,能够实现以目标设定压力保压和空载、轻载时的大流量输出。In practice due to the existed defects of traditional asynchronous motor（ASM） to drive the constant pressure variable pump power system with complicated structure, poor ability to resist pollution, low motor power factor, low efficiency. According to the permanent magnet synchronous motor （PMSM） energy-saving, good reliability at speed control with the good reliability of gear pump and introduces the pressure negative feedback control, combine those strategies each other a new type of constant pressure power system is developed. Results of the experiment and simulation show that PMSM driven gear pump constant pressure power system can achieved load flow adaptive control and maintain the system pressure constant, and large flow output under the empty load and light-load.

关 键 词：永磁同步电机 恒压源 压力反馈 流量自适应 

分 类 号：TH137[机械工程—机械制造及自动化]