Overview
This reference design of a 3-phase Permanent Magnet Synchronous Motor (PMSM) sensorless vector control drive and a Brushless DC (BLDC) Motor drive without position encoder coupled to the motor shaft uses the NXP® 56F8013 with Processor Expert® software support.
- PMSM/BLDC motor are excellent choices for many appliances and industrial applications that require low cost and high-performance variable speed operation
- This design will employ sensorless FOC to control a PMSM and a sensorless algorithm to control BLDC
- The hardware design supports both motor types with the algorithms fully implemented digitally via software running on the 56F8013 DSC
Features
General:
- For PMSM the motor control algorithm employs Field-Oriented Control (FOC). The power stage switches are controlled by means of Space Vector Pulse Width Modulation (SVPWM)
- The feedback hardware elements are limited to the motor stator phase currents and the bus voltage. No position information devices or stator flux measurement are used; sensorless speed methods are employed
- The Motor is capable of forward and reverse rotation and has a speed range of 500rpm to 6000rpm
- The user controls motion profiles, rotation direction, and speed. The RS-232 communication supports further R&D by enabling the easy tuning of control parameters
- The motor drive system is designed to create minimal acoustic noise
- Active power factor correction which reduces the negative effects of the load on the power grid in conducted noise and imaginary power
- Design is low cost
General Benefits:
- Improved End System Performance
- Energy savings
- Quieter operation
- Improved EMI performance
- System Cost savings
- Enhanced Reliability
Performance:
- Input voltage: 85 ~265VAC
- Input frequency: 45 ~65HZ
- Rating bus voltage: 350V
- Rating output power: 500W
- Switch frequency of PFC switch: 100KHZ
- Switch frequency of inverter: 10KHZ
- Power factor: >95%
- Efficiency: >90%
Communications:
- RS232 port for communication with optoisolation
Visual Interface:
- Multi-segment LED indicators
