| 液压挖掘机工作装置电液比例控制模型的建立与研究 |
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| 引用本文： | 贺继林,冯雨萌,杨敏,刘鹏飞. 液压挖掘机工作装置电液比例控制模型的建立与研究[J]. 现代制造工程, 2010, 0(3) |
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| 作者姓名： | 贺继林 冯雨萌 杨敏 刘鹏飞 |
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| 作者单位： | 中南大学现代复杂装备设计与极端制造教育部重点实验室,长沙,410083 |
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| 摘 要： | 为实现对液压挖掘机工作装置的精确控制,在分析电液比例模型结构特点的基础上,建立电液比例数学模型并对其时域和频域性能指标进行分析。由于系统响应速度较慢,在调节控制系统增益后,加入了PID控制算法,通过试验确定法确定仿真控制参数,进而分析系统性能的改进程度;为了验证控制算法的合理性以及控制参数的正确性,通过基于PID控制算法的挖掘机轨迹规划试验,验证系统控制效果,证明理论分析方法对实际应用的指导意义。
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| 关 键 词： | 液压挖掘机 电液比例控制模型 PID控制 |
The deduction and research of hydraulic excavator electronic-hydraulic proportion model |
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| HE Ji-lin,FENG Yu-meng,YANG Min,LIU Peng-fei. The deduction and research of hydraulic excavator electronic-hydraulic proportion model[J]. Modern Manufacturing Engineering, 2010, 0(3) |
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| Authors: | HE Ji-lin FENG Yu-meng YANG Min LIU Peng-fei |
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| Affiliation: | HE Ji-lin,FENG Yu-meng,YANG Min,LIU Peng-fei(Key Laboratory of Modern Complex Equipment Design , Extreme Manufacturing,Ministry of Education,Central South University,Changsha 410083,China) |
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| Abstract: | In order to realize precise control to the device of hydraulic excavator,by analyzing the structure and character of electronic-hydraulic proportion model,the mathematic model is deducted,and the time domain and the frequency domain character of the system are analyzed.Because the speed of system response is very slow,after adjusting the control system-gain,PID method is selected to control the model,and the parameter is fixed on by trial confirming method,then the improvement of system's performance is ana... |
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| Keywords: | hydraulic excavator electronic-hydraulic proportion control model PID control |
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