Improving Bandwidth of Three-Stage Electro-Hydraulic Servo Valve Based on Speed-Feedback |
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| Authors: | LIU Xiao-chu HE Jing-feng YE Zheng-mao CONG Da-cheng HAN Jun-wei |
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| Institution: | School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150080, China |
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| Abstract: | In order to improve the dynamic response bandwidth of three-stage electro-hydraulic servo valve,a new method,speed-feedback control is presented in this paper.The construction and principle of three-stage electro-hydraulic servo valve are explained,and the mathematical model of three-stage electro-hydraulic servo valve is built in frequency domain.Experimental and simulation results show that the bandwidth compared with proportional control is improved under speed-feedback control.Moreover,the research resu... |
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| Keywords: | three-stage electro-hydraulic seroo valve bandwidth speed-feedback construction principle model simulation experimental test |
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