56F8300

56F8300 3-Phase AC Induction Motor V/Hz Control using Processor ExpertTM Targeting Document 56F8300 16-bit Digital Signal Controllers www.DataSheet4U.com 8300ACIMTD Rev. 1 08/2005 freescale.com Document Revision History Version History Rev 0 Rev 1 Initial release Updating format; adding references to 56F8100 family and 56F8367EVM Description of Change www.DataSheet4U.com 3-Phase AC Induction Motor V/Hz Control, Rev. 1 2 Freescale Semiconductor 3-Phase AC Induction Motor Control V/Hz Application - Closed Loop This application demonstrates a principal of the Volts per Hertz (V/Hz) control of the 3-Phase AC Induction motor in closed-loop using the 56F8346, 56F8357 or 56F8367 EVM board, Optoisolation board, and 3-phase AC BLDC high-voltage power stage. Applications developed for this demonstration board were not designed for the 56F8100 devices. The 56F8300 demonstration board does, however, fully support 56F8100 software development. 1. Specifications This application performs principal control of the 3-phase AC induction motor using a 56F8300 processor. The control technique sets the speed (rpm or Hz) of the magnetic field and calculates the phase voltage amplitude according to a V/Hz table. This table is private to the application and reflects AC induction motor parameters (Base Voltage/frequency; Boost Voltage/frequency; DC Boost Voltage). The incremental encoder is used to derive the actual rotor speed. The closed-loop system is characterized by a feedback signal (A...