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  本文選題：電液比例　切入點：壓力控制　出處：《機(jī)械設(shè)計與制造》2017年06期 　論文類型：期刊論文

【摘要】：電液比例控制系統(tǒng)由于控制模型的參數(shù)無法準(zhǔn)確獲取,存在難以實現(xiàn)高精度、響應(yīng)速度快和抗干擾能力強(qiáng)的控制系統(tǒng)的問題,本次研究采用最小二乘系統(tǒng)辨識法與智能PID控制相結(jié)合,有效地解決電液比例壓力控制系統(tǒng)的難題。首先建立電液比例壓力控制系統(tǒng)的理論模型;其次,在理論模型的基礎(chǔ)上,根據(jù)系統(tǒng)單輸入和單輸出的實驗數(shù)據(jù),采用最小二乘系統(tǒng)辨識法,獲得電液比例壓力控制系統(tǒng)的傳遞函數(shù);然后,根據(jù)傳遞函數(shù)模型,采用MATLAB軟件求解非線性方程組得到系統(tǒng)模型參數(shù);最后,采用智能PID控制方法,對控制系統(tǒng)進(jìn)行仿真。仿真數(shù)據(jù)表明,本次研究成果對于工業(yè)中電液比例壓力控制系統(tǒng)具有較好的指導(dǎo)作用。
[Abstract]:Because the parameters of the control model can not be obtained accurately, the electro-hydraulic proportional control system is difficult to realize the control system with high precision, fast response speed and strong anti-interference ability. In this study, the problem of electro-hydraulic proportional pressure control system is effectively solved by combining the least square system identification method with intelligent PID control method. Firstly, the theoretical model of electro-hydraulic proportional pressure control system is established; secondly, based on the theoretical model, the theoretical model of electro-hydraulic proportional pressure control system is established. According to the experimental data of single input and single output of the system, the transfer function of the electro-hydraulic proportional pressure control system is obtained by using the least square system identification method, and then, according to the transfer function model, the transfer function of the electro-hydraulic proportional pressure control system is obtained. The model parameters of the system are obtained by solving nonlinear equations with MATLAB software. Finally, the intelligent PID control method is used to simulate the control system. The simulation data show that, The results of this study have a good guiding effect on the electro-hydraulic proportional pressure control system in industry.
【作者單位】： 鄭州工程技術(shù)學(xué)院機(jī)電與車輛工程學(xué)院;
【分類號】：TH137;TP273

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本文編號：1634916