PMSM Configuration
Libraries:
Motor Control Blockset HDL Support /
Electrical Systems /
Motors
Description
The PMSM Configuration block generates the configuration signal for a permanent magnet synchronous machine/motor (PMSM). You can use this signal to update parameters of a PMSM block that support FPGA deployment, such as the PMSM HDL block.
Examples
Field-Oriented Control (FOC) of PMSM Using Hardware-In-The-Loop (HIL) Simulation
Uses hardware-in-the-loop (HIL) simulation to implement the field-oriented control (FOC) algorithm to control the speed of a three-phase permanent magnet synchronous motor (PMSM). The FOC algorithm requires rotor position feedback, which is obtained by a quadrature encoder sensor. For more information on FOC, see Field-Oriented Control (FOC).
Ports
Output
Config — Block configuration signal
vector
Configuration signal for a PMSM, which includes the following parameters that you configure using this block.
Configuration element | Units | ||
---|---|---|---|
Number of pole pairs | - | ||
Stator phase resistance per phase | ohm | ||
Stator d-axis inductance | Henries | ||
Stator q-axis inductance | Henries | ||
Permanent magnet flux linkage constant | Weber | ||
Inertia | kgm^2 | ||
Back electromotive force, EMF | Vpk_LL/krpm Vpk_LL is the peak voltage line-to-line measurement | ||
Viscous damping | N·m/(rad/s) | ||
Mechanical input configuration (Torque or Speed) | - |
Data Types: single
Parameters
Block Options
Mechanical input configuration — Select port configuration
Torque
(default) | Speed
This table summarizes the input and output ports in each configuration.
Mechanical input configuration parameter value | LdTrq/Spd port configuration | ||
---|---|---|---|
Torque | LdTrq | ||
Speed | Spd |
Sample Time (Ts) — Sample time after which block executes again
1e-6
(default) | scalar
The fixed time interval (in seconds) between every two consecutive instances of block execution.
Parameters
Number of pole pairs — Pole pairs
4
(default) | scalar
Number of pole pairs, P, in the motor.
Stator phase resistance per phase (Ohm) — Resistance of stator
0.02
(default) | scalar
Stator phase resistance per phase, Rs, in ohm.
Stator d-axis inductance (H) — d-axis inductance
1.7e-3
(default) | scalar
Stator inductance, Ld, in H.
Stator q-axis inductance (H) — q-axis inductance
3.2e-3
(default) | scalar
Stator inductance, Lq, in H.
Permanent flux linkage constant (Wb) — Flux linkage constant
0.2205
(default) | scalar
Permanent flux linkage constant, λpm, in Wb.
Inertia (kgm^2) — Physical inertia
0.0027
(default) | scalar
Physical inertia of the motor, J, in kg.m^2.
Viscous damping (Nm/rad/s) — Viscous damping
4.924e-4
(default) | scalar
Viscous damping of the motor, F, in N·m/(rad/s).
Static friction (Nm) — Static friction
0
(default) | scalar
Static friction in the motor, Tf, in N·m.
Version History
Introduced in R2022b
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