### AC Induction Motor Current Model (FOC)

**Category: **Controllers
> Field Oriented Control

The AC Induction Motor Current Model (FOC) block is used
for field-oriented control applications.

The AC Induction Motor Current Model (FOC) block uses
sensed stator currents of an AC induction motor model (converted to DQ frame
currents) and speed measurements to estimate the angular position of the stator
magnetic field (direct axis) based on known motor parameters.

**Number of Poles:** Requires the 3-phase AC induction
motor number of pole pairs.

**Stator Inductance (per phase):** Requires the 3-phase
AC induction motor stator per phase inductance in henries.

**Stator Leakage Inductance:** Requires the 3-phase AC
induction motor specified stator leakage inductance in henries.

**Rotor Leakage Inductance:** Requires the specified
3-phase AC induction motor rotor leakage inductance in henries.

**Rotor Resistance:** Requires the 3-phase AC induction
motor rotor winding resistance in ohms.

#### Example

**Diagram name:
**ACIM FOC Model

**Location: **Examples > eMotor > AC Induction

The following simulation demonstrates how the field angle
varies over time with respect to the rotor angle while operating the motor open
loop at steady state velocity.