Dual Closed-Loop Control of Permanent Magnet Synchronous Motor
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By employing a dual closed-loop control system for permanent magnet synchronous motors (PMSM), more precise motor control can be achieved. The dual-loop architecture consists of an inner current control loop and an outer speed/position control loop. The inner loop regulates motor current using techniques like PID controllers or field-oriented control (FOC) algorithms, while the outer loop manages motor speed or position through advanced control strategies. This hierarchical approach significantly improves motor response speed and control accuracy, making PMSM systems more reliable and efficient across various applications. Implementation typically involves current sampling, coordinate transformation modules, and PWM signal generation for precise torque and flux control.
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