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1. (WO2018102872) SENSORLESS AC MOTOR CONTROLLER

Pub. No.:    WO/2018/102872    International Application No.:    PCT/AU2017/051343
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Fri Dec 08 00:59:59 CET 2017
IPC: H02P 21/24
H02P 29/00
H02P 5/00
H02P 6/34
H02P 25/089
H02P 25/083
H02P 27/08
H02P 21/18
H02P 21/04
Applicants: UNIVERSITY OF TECHNOLOGY SYDNEY
Inventors: HUNTER, Gregory Peter
Title: SENSORLESS AC MOTOR CONTROLLER
Abstract:
A controller for an AC electric motor, the controller including: a power converter driving the AC electric motor; a feed forward converter that derives voltage values provided to the power converter; and a load model unit configured to derive an applied rotor speed used for an input to the feed forward converter, wherein the applied rotor speed is derived using a stabilising speed correction value with a substantially zero average value.