2 Harmony QSpin - PMSM FOC
PMSM FOC, or Field Oriented Control, is an advanced control technique designed to optimize the performance of Permanent Magnet Synchronous Motors (PMSMs). This method achieves precise control of the motor's torque and speed by aligning the stator current with the rotor's magnetic field.
Benefits of PMSM FOC
- Improved Torque Control: Enables quick and accurate responses to load changes.
- Enhanced Efficiency: Optimizes energy consumption by managing the motor's operation more effectively.
- Smooth Operation: Reduces vibrations and noise during operation.
How PMSM FOC Works
Field Oriented Control involves several key steps:
- Measurement of Rotor Position: Essential for aligning the current vector with the rotor's magnetic field.
- Decoupling Control: Separates torque and flux control to enhance performance.
- Real-time Calculations: Utilizes feedback to dynamically adjust current inputs.
Supported Devices
Harmony QSpin integrates advanced algorithms tailored for different microcontroller families, enabling efficient motor control strategies.
| Algorithm | SAMD/E5x | SAME7x / SAMV7x | SAMC2x / PIC32CM MC | PIC32MK MCF / PIC32MK MCM / PIC32MK MCA |
|---|---|---|---|---|
| Classical PLL-based Estimator | Yes | Yes | Yes | Yes |
| Sliding Mode Observer | Yes | Yes | No | Yes |
| Reduced Order Luenberger Observer | Yes | Yes | No | Yes |
| Encoder-based Position Calculation | Yes | Yes | No | Yes |
| ZSMT-HF Hybrid | Yes | No | No | Yes |
| Flux Weakening | Yes | Yes | No | Yes |
| MTPA | Yes | Yes | No | Yes |
| Null Vector Flying Start | Yes | Yes | No | Yes |
| Encoder-based Position Control | Yes | Yes | No | Yes |
Applications of PMSM FOC
PMSM FOC is widely used in:
- Electric and hybrid vehicles
- Robotics
- CNC machinery
- Wind turbines