BLDC Motor Control
Develop BLDC motor control algorithms using simulation
Develop BLDC motor control algorithms using simulation
Design and implement motor control algorithms
Electronically commutated or “brushless” motors continue to grow in popularity because they offer higher electrical efficiency and torque-to-weight ratio than mechanically commutated or “brushed” counterparts. Brushless DC (BLDC) motors are commonly defined as permanent magnet synchronous machines (PMSMs) that exhibit a trapezoidal back EMF due to the concentration of the stator windings. This differentiates BLDC motors from PMSM motors, which exhibit sinusoidal back EMF due to distributed stator windings.
Brushless DC motors typically use trapezoidal control, but field-oriented control is used as well. PMSM motors typically use field-oriented control only. Trapezoidal BLDC motor control is a simpler technique than field-oriented control; it energizes only two phases at a time. Only one PID controller is required for torque control, and, as opposed to field-oriented control, there is no need for coordinate transformations using Park and Clarke transforms.
Motor control engineers designing a BLDC motor controller with a trapezoidal method perform the following tasks:
BLDC motor control design using Simulink® lets you use multirate simulation to design, tune, and verify control algorithms and detect and correct errors across the complete operating range of the motor before hardware testing. Using simulation with Simulink, you can reduce the amount of prototype testing and verify the robustness of control algorithms to fault conditions that are not practical to test on hardware. You can:
Go from basic tasks to more advanced maneuvers by walking through interactive examples and tutorials.
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