- Overview
- Features
- General:
- General Benefits:
- Performance:
- Communications:
- Visual Interface:
- Block Diagram
- Board
- Design Resources
Overview
This drive application allows vector control of an AC Induction Motor (ACIM) running in a closed-speed loop without a speed/position sensor at a low cost and serves as an example of AC induction vector control drive design using an NXP® 56F8013 with Processor Expert® software support.
- ACIM is ideal for appliance and industrial applications
- This design uses sensorless FOC to control an ACIM using the 56F8013 device, which can accommodate the sensorless FOC algorithm
- The motor control system is flexible enough to implement complex motion protocols while it drives a variable load.
- The system illustrates the features of the 56F8013 in motor control
Features
General:
- The motor control algorithm employs Stator-Flux-Oriented Control (SFOC)
- Power stage switches are controlled by Space Vector Pulse Width Modulation (SVPWM)
- No position information devices or stator flux measurement are used, a sensorless speed method is employed
- The motor is capable of forward and reverse rotation and has a speed range from 50rpm to 3000rpm
- 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
