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Single-axis Motor Control Reference Design with Integrated Power Factor Correction

Texas Instruments

This refernce design demonstrates best practices for integrating both single axis motor control and power factor correction (PFC) into a single microcontroller. This practice is popular when designing variable frequency compressors: particularly for HVAC systems. This implementation is optimized to perform using a sensorless Field Oriented Control (FOC) algorithm to drive a permanent magnet synchronous motor (PMSM) and two phase interleaved PFC on the TMS320F2805x microcontroller. The FOC algorithm maintains efficiency in a wide range of speeds and takes into consideration torque changes with transient phases by processing a dynamic model of the motor.

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Features

Includes reference circuit for a 3-Phase inverter stage: up to 350V DC input voltage and 1KW maximum load for both sensored and sensorless control of ACI: PMSM or BLDC motorsIncludes a power factor correction stage rated for 600W that can operate up to 96% efficiencyIncludes an AC rectifier stage rated for 600W that can generate the DC Bus voltage or provide the input for the PFC stage present on the boardIntegrated communication with the kit over CAN or UARTFour analog pins available to obsrve the system variables on an oscilloscope for debugIncludes overcurrent protection and PWM trip zone protection for IPM faults