Training Project on Implementing a BLDC Motor Controller with Simscape Electrical and Stateflow

This repository consists of folders containing the MATLAB and Simulink files that are realized following the How to Design Motor Controllers Using Simscape Electrical video tutorial series.

✅ Prerequisites

Knowledge	Level
Control Theory	⭐⭐
Electronics Theory	⭐⭐
Simulink	⭐⭐⭐
Stateflow	⭐⭐⭐
Simscape	⭐⭐⭐
Matlab	⭐

🎯 Goal

The purpose of this project is to implement a speed control system for a simple BLDC motor using the basic knowledge of Simulink, Simscape and Stateflow.

The block diagram of the BLCD control system (🔘 click on the image to enlarge)

Main Flow

This section shows the main steps I followed to achieve the goal.

Learn

• Simulink onramp
• Stateflow onramp
• BLDC Theory from different sources
  • An Introduction to Brushless DC Motors
  • Brushless DC electric motor
  • bldc-motor-control

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Code

1. Simulink implementation simulating the Back-EMF Voltage of a BLDC Motor
2. Implementing a Three-Phase Inverter to drive the BLDC motor
3. Implementing the commutation logic in order control a BLDC motor at constant speed.
   1. Implementing the PID controller that lets us control the motor at different speeds and simulate motor response.
   2. Replace the commutation logic with a new one using Stateflow.
4. Trying to add a PWM Control with the aim to achieve a more realistic scenarious.

Note:

• Each folder contains a README that shows the main work of the relative step.
• Most of the MATLAB code in this repository is copied from here.
• All the sources in this repository has been tested on Matlab R2021a.

👀 See also

Check out this tech talk video series to understand:

• How brushless DC motors differ from brushed DC motors and how they work
• How BLDC motors can be controlled using six-step commutation (trapezoidal control)
• The different components of a BLDC motor control algorithm such as PWM control, commutation logic, three-phase inverter and sensor