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高速开关阀的复合PWM控制策略分析与优化

高强 朱玉川 罗樟 陈晓明

高强, 朱玉川, 罗樟, 等 . 高速开关阀的复合PWM控制策略分析与优化[J]. 北京航空航天大学学报, 2019, 45(6): 1129-1136. doi: 10.13700/j.bh.1001-5965.2018.0565
引用本文: 高强, 朱玉川, 罗樟, 等 . 高速开关阀的复合PWM控制策略分析与优化[J]. 北京航空航天大学学报, 2019, 45(6): 1129-1136. doi: 10.13700/j.bh.1001-5965.2018.0565
GAO Qiang, ZHU Yuchuan, LUO Zhang, et al. Analysis and optimization on compound PWM control strategy of high-speed on/off valve[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(6): 1129-1136. doi: 10.13700/j.bh.1001-5965.2018.0565(in Chinese)
Citation: GAO Qiang, ZHU Yuchuan, LUO Zhang, et al. Analysis and optimization on compound PWM control strategy of high-speed on/off valve[J]. Journal of Beijing University of Aeronautics and Astronautics, 2019, 45(6): 1129-1136. doi: 10.13700/j.bh.1001-5965.2018.0565(in Chinese)

高速开关阀的复合PWM控制策略分析与优化

doi: 10.13700/j.bh.1001-5965.2018.0565
基金项目: 

国家自然科学基金 51575258

江苏高校“青蓝工程” 

详细信息
    作者简介:

    高强  男, 博士研究生。主要研究方向:数字液压元件及其控制技术

    朱玉川  男, 博士, 教授, 博士生导师。主要研究方向:数字液压元件及其控制技术

    通讯作者:

    朱玉川, E-mail: meeyczhu@nuaa.edu.cn

  • 中图分类号: TH137

Analysis and optimization on compound PWM control strategy of high-speed on/off valve

Funds: 

National Natural Science Foundation of China 51575258

Qing Lan Project 

More Information
  • 摘要:

    针对单一PWM控制的高速开关阀(HSV)存在响应慢和功耗大的问题,从信号产生机理出发,提出了一种复合PWM控制策略,该复合PWM由基准PWM、激励PWM、高频PWM及反向PWM组成。首先,给出复合PWM的作用机制与工作原理;其次,通过仿真分析了激励PWM、高频PWM及反向PWM的占空比在不同工况下对高速开关阀性能的影响规律;最后,分别为激励PWM、高频PWM及反向PWM的占空比设计了相应的基于状态量反馈的闭环控制器。结果表明:与单一PWM控制相比,所提出的复合PWM控制器可以有效减少线圈的功耗和阀芯的关闭时间,线圈电流在阀芯最大开口维持阶段降低约80%,阀芯关闭时间减少约62.5%。

     

  • 图 1  两位三通高速开关阀结构示意图

    Figure 1.  Schematic of 2-position and 3-way high-speed on/off valve structure

    图 2  高速开关阀的动态特性

    Figure 2.  Dynamic characteristics of high-speed on/off valve

    图 3  复合PWM信号

    Figure 3.  Compound PWM signal

    图 4  基准PWM、激励PWM及反向PWM信号

    Figure 4.  Reference PWM, excitation PWM and reverse PWM signals

    图 5  基准PWM和高频PWM信号

    Figure 5.  Reference PWM and high-frequency PWM signals

    图 6  不同载波频率下的阀芯位移曲线

    Figure 6.  Displacement curves of ball valve under different carrier frequencies

    图 7  不同进口压力下的阀芯位移曲线

    Figure 7.  Displacement curves of ball valve under different inlet pressures

    图 8  不同进口压力下的阀芯合力曲线

    Figure 8.  Resultant force curves of ball valve under different inlet pressures

    图 9  不同载波频率下的线圈电流响应曲线

    Figure 9.  Response curves of coil current under different carrier frequencies

    图 10  不同载波频率和进口压力下的阀芯位移优化曲线

    Figure 10.  Optimization curves of ball valve's displacement under different inlet pressures and different carrier frequencies

    图 11  不同进口压力下的阀芯合力优化曲线

    Figure 11.  Resultant force optimization curves of ball valve under different inlet pressures

    图 12  不同载波频率下的线圈电流响应优化曲线

    Figure 12.  Response optimization curves of coil current under different carrier frequencies

    图 13  不同控制策略下的线圈电流对比曲线

    Figure 13.  Comparative curves of coil current under different control strategies

    图 14  不同控制策略下的阀芯位移对比曲线

    Figure 14.  Comparative displacement curves of ball valve under different control strategies

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出版历程
  • 收稿日期:  2018-09-27
  • 录用日期:  2018-12-21
  • 网络出版日期:  2019-06-20

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