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线性压缩机的变速趋近律滑模控制方法研究

梁晓瑜 毛君 王鑫

梁晓瑜,毛君,王鑫. 线性压缩机的变速趋近律滑模控制方法研究[J]. 机械科学与技术,2021,40(11):1754-1759 doi: 10.13433/j.cnki.1003-8728.20200557
引用本文: 梁晓瑜,毛君,王鑫. 线性压缩机的变速趋近律滑模控制方法研究[J]. 机械科学与技术,2021,40(11):1754-1759 doi: 10.13433/j.cnki.1003-8728.20200557
LIANG Xiaoyu, MAO Jun, WANG Xin. Study on Sliding Mode Control Method of Variable Speed Reaching Law for Linear Compressor[J]. Mechanical Science and Technology for Aerospace Engineering, 2021, 40(11): 1754-1759. doi: 10.13433/j.cnki.1003-8728.20200557
Citation: LIANG Xiaoyu, MAO Jun, WANG Xin. Study on Sliding Mode Control Method of Variable Speed Reaching Law for Linear Compressor[J]. Mechanical Science and Technology for Aerospace Engineering, 2021, 40(11): 1754-1759. doi: 10.13433/j.cnki.1003-8728.20200557

线性压缩机的变速趋近律滑模控制方法研究

doi: 10.13433/j.cnki.1003-8728.20200557
基金项目: 辽宁省教育厅项目(LJ2019QL018)、辽宁工程技术大学学科创新团队项目(LNTU20TD-02)及阜新市军民融合项目(18-Z03)
详细信息
    作者简介:

    梁晓瑜(1981−),讲师,博士,研究方向为机电液控制系统仿真,314790936@qq.com

    通讯作者:

    毛君,教授,博士生导师,博士,13704181080@139.com

  • 中图分类号: TP45

Study on Sliding Mode Control Method of Variable Speed Reaching Law for Linear Compressor

  • 摘要: 将线性压缩机的机械和电磁两部分分别构建了物理模型。在物理模型基础上以驱动电压为输入、活塞位移为输出构建了线性压缩机状态方程;采用变速趋近律滑模控制算法设计线性压缩机控制器,并在Simulink中搭建线性压缩机控制系统;通过数值仿真方法与传统指数趋近律控制器进行对比,结果表明:变速趋近律滑模控制器在到达稳态时间、抖振程度上均优于传统指数趋近律控制器,并且在控制精度上提升了约20%,同时α =1.346、k = 13.499时变速趋近律滑模控制器取得最优控制效果,通过试验测试得到控制误差在4% ~7.8%之间,验证了控制器的控制精度及有效性。
  • 图  1  线性压缩机结构图

    图  2  机械系统简化模型

    图  3  压力变化示意图

    图  4  等效电路图

    图  5  压缩机仿真系统图

    图  6  基于变速趋近律滑模控制器的压缩机仿真系统图

    图  7  不同控制器下活塞位移及控制器信号时间历程图

    图  8  不同控制器下活塞速度及误差曲线时间历程图

    图  9  不同参数下变速趋近律滑模控制器性能指标云图及寻优曲线

    图  10  试验测试平台

    图  11  活塞位移曲线

    图  12  期望值的误差曲线

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出版历程
  • 收稿日期:  2021-01-11
  • 网络出版日期:  2022-03-02
  • 刊出日期:  2021-11-05

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