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Modified on
28 Jan 2025 01:59 pm
Skill-Lync
Welcome to the Physical Modeling in Simscape with Simulink & MATLAB blog series! In this edition, we’ll explore how to model and simulate a DC motor-driven fan load, a common example of an electromechanical system. This blog focuses on integrating electrical and mechanical components using MATLAB Simscape, providing a practical guide for beginners and advanced users alike.
This tutorial is part of Skill-Lync Simscape Training, designed to help you understand physical modeling using MATLAB Simscape through real-world examples.
Understanding the System: A DC Motor and Fan Load
In this simulation, we model a fan driven by a DC motor. The fan’s torque (TLT_LTL ) is proportional to the square of its angular speed (ωM\omega_MωM ):
TL=C⋅ωM2T_L = C \cdot \omega_M^2TL =C⋅ωM2
Where CCC is the constant of proportionality.
Key elements of the system include:
This system demonstrates how electrical inputs (voltage and current) influence mechanical outputs (speed and torque). Such models are invaluable for understanding Simscape physical systems.
Building the Model in Simulink
Defining the Subsystem:
Connecting the DC Motor:
Adding a DC Voltage Source:
Signal Routing with From and Goto:
Simulating the System
With Fixed Voltage:
With Variable Voltage:
Key Observations
Inertia Effects:
Exponential Speed Behavior:
Torque-Speed Relationship:
Conclusion
This simulation demonstrates the dynamic interaction between electrical and mechanical systems, showcasing the power of Simscape physical modeling. By integrating DC motor characteristics, fan load dynamics, and variable voltage sources, you gain insights into real-world applications like exhaust fans and ceiling fans.
To deepen your understanding, enroll in Skill-Lync’s Simscape Course Online, where you’ll learn to design and simulate complex systems. Stay tuned for the next blog, where we’ll explore advanced signal routing and parameter tuning.
This blog is part of our ongoing Physical Modeling in Simscape with Simulink & MATLAB. If you missed the previous posts, check them out here.
Would you like to have a more interactive experience in Physical Modeling?
Skill-Lync has released a FREE comprehensive course covering Physical Modeling in Simscape with Simulink & MATLAB! Check it out here.
Check out our hands-on course today and add it to your list of skills!
Let’s get #IndustryReady together, one skill at a time!
Author
Uma Maheswari K
Author
Skill-Lync
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