Speed control of a hydrostatic drive using inverse steady state model

International Conference on Mechanical, Materials and Renewable Energy

机械制造;材料科学;能源学

Tripathi, Jay Prakash^1 ; Ghoshal, Sanjoy K.^2 ; Ehtesham Hasan, Md.^3 ; Dasgupta, Kabir^4 ; Das, Jayanta^4

Department of Mechanical Engineering, K L University, Vaddeswaram, Andhra Pradesh, India^1

Department of Mechanical Engineering, Indian Institute of Technology, Indian School of Mines, Dhanbad, India^2

Department of Mechanical Engineering, KIIT University, Orissa, Bhubaneswar, India^3

Department of Mining Machinery Engineering, Indian Institute of Technology, Indian School of Mines, Dhanbad, India^4

关键词: Closed-loop instability;    Control inputs;    High frequency oscillations;    Hydrostatic drives;    PID controllers;    State-of-the-art system;    Steady-state modeling;    Steady-state values;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/377/1/012115/pdf
DOI  :  10.1088/1757-899X/377/1/012115

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this article a state of the art system inversion based control (SIBC) technique is proposed for regaining the speed of a pedagogical hydrostatic drive to its desired speed under changed load torque on the drive shaft. The input calculation through the SIBC is activated only when steady state value of the output deviates from the desired level. Therefore, the desired output is attained without making the system closed loop. As a result, neither high frequency oscillation (chattering) in the control input nor the risk of closed loop instability comes into the picture as of PID controller where system output is continuously compared with the reference to calculate the input.