RD56F801XACIM: Design of an ACIM Vector Control Drive Reference Design using the 56F801X

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• 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

Block Diagram

Board

Design Resources