Research Paper
MODELLING OF PHYSICAL SYSTEM FOR DESIGN AND CONTROL OF MECHATRONIC SYSTEM: A CASE STUDY
Author: * Bheem Sonker, **Jitendra Kumar, *** Gopal Sharma
* Assistant Professor, EE, ANACEMS, Bareilly
(Mail- id bheemsonker@gmail.com)
** HOD, Department Elecrical & Electronics Engineering, SHEAT College of Engineering, Varanasi
(mail- id kumarjeetu024@gmail.com )
*** Associate Professor, EE, Institute of Technology, BHU, Varanasi, India
{PUBLISHED RESEARCH PAPER}
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Abstract
Today's automotive control system engineering requires precision and accuracy. The cost of a controller designed with conservative margins may increase significantly, causing the design, when produced and marketed, to be less competitive. On the other hand, Mechatronic design requires that a mechanical system and its control system be designed as an integrated system. This contribution covers the background and tools for modelling and simulation of physical systems and their controllers, with parameters that are directly related to the real-world system . Achieving a system design involves careful analysis of the controller and plant operating together. This paper discusses how MATLAB and Simulink can be leveraged to ensure the PID control of a mechatronic system design. The merits of the network approach as a technique for modelling physical systems as an alternative to the signal flow (block diagram) approach are also discussed. Finally, the advantages of integrating these methods within Simulink as the environment for Model-Based Design for mechatronic systems are presented. The main focus of this project will be discussing the process of creating models of the physical system variances. As a simple illustration, consider the problem of modelling a DC motor with speed control. MATLAB/SIMULINK is used because of the short learning curve that most students require to start using its wide distribution and its general-purpose nature. This will demonstrate the advantages of using MATLAB for analyzing power system steady state behavior and its capabilities for simulating transients in power systems and power electronics, including control system dynamic behavior. The enabling technology for the network approach is a modelling language for formulating the component’s characteristics equations relating the through and across variables in the various domains. The Simscape language, based on MATLAB [16], provides the necessary constructs for modeling the multi domain aspects of mechatronic systems. In the DC motor example, the motor equations can be directly modeled using the Simscape language.
