Simulink Control Design™ - MathWorks

Tune Field-Oriented Controllers for an Asynchronous

Machine Using Closed-Loop PID Autotuner Block

This example shows how to use the Closed-Loop PID Autotuner block to tune Field-

Oriented Control (FOC) for an asynchronous machine (ASM) in just one simulation.

Introduction of Field-Oriented Control

In this example, field-oriented control (FOC) for an asynchronous machine (ASM) is

modeled in Simulink® using Simscape™ Electrical™ components. The model is based on

the Simscape example “Three-Phase Asynchronous Drive with Sensor Control” (Simscape

Electrical).

mdl = 'scdfocasmPIDTuning';

open_system(mdl)

Field-oriented control controls 3-phase stator currents as a vector. FOC is based on

projections, which transform a 3-phase time-dependent and speed-dependent system into

a two coordinate time-invariant system. These transformations are the Clarke

Transformation, Park Transformation, and their respective inverse transforms. These

transformations are implemented as blocks within the Controls subsystem.

Tune Field-Oriented Controllers for an Asynchronous Machine Using Closed-Loop PID Autotuner Block