Single axis control of ball position in magnetic levitation system using fuzzy logic control

International Conference on Functional Materials and Chemical Engineering 2017

材料科学;化学工业

Sahoo, Narayan^1 ; Tripathy, Ashis^2 ; Sharma, Priyaranjan^3

Department of Electrical Engineering, JK Lakshmipat University, Jaipur, India^1

Department of Electronics and Communication Engineering, JK Lakshmipat University, Jaipur, India^2

Department of Mechanical Engineering, JK Lakshmipat University, Rajasthan, Jaipur, India^3

关键词: Fuzzy logic control;    Fuzzy logic control (FLC);    Fuzzy logic controllers;    Magnetic levitation systems;    Real-time environment;    Real-time implementations;    Robust performance;    Set-point tracking;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/323/1/012020/pdf
DOI  :  10.1088/1757-899X/323/1/012020

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This paper presents the design and real time implementation of Fuzzy logic control(FLC) for the control of the position of a ferromagnetic ball by manipulating the current flowing in an electromagnet that changes the magnetic field acting on the ball. This system is highly nonlinear and open loop unstable. Many un-measurable disturbances are also acting on the system, making the control of it highly complex but interesting for any researcher in control system domain. First the system is modelled using the fundamental laws, which gives a nonlinear equation. The nonlinear model is then linearized at an operating point. Fuzzy logic controller is designed after studying the system in closed loop under PID control action. The controller is then implemented in real time using Simulink real time environment. The controller is tuned manually to get a stable and robust performance. The set point tracking performance of FLC and PID controllers were compared and analyzed.