Work

Observers for Sensorless Synchronous Motor Drives: Framework for Design and Analysis

Year: 2018

Type: article

Abstract: This paper deals with the speed and position estimation for synchronous reluctance motors (SyRMs) and interior permanent-magnet synchronous motors (IPMs). A unified design and analysis framework for a class of back electromotive force-based observers is developed and the links between apparently different estimation methods are brought out. State observers equipped with a speed-adaptation law are shown to be mathematically equivalent to voltage-model-based flux observers equipped with a position-tracking loop. The error signal driving the adaptation law or the tracking loop is presented in a generalized form. Using the framework, a stabilizing gain design is reviewed and detailed design guidelines are given. Selected observer designs are experimentally evaluated using a 6.7-kW SyRM drive and a 2.2-kW IPM drive.

Source: IEEE Transactions on Industry Applications

DOI: 10.1109/tia.2018.2858753

Authors: Marko Hinkkanen, Seppo E. Saarakkala, Hafiz Asad Ali Awan, Eemeli Molsa, Toni Tuovinen

Institutions: Aalto University, ABB (Finland)

Language: English

Topic: Sensorless Control of Electric Motors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funder: Academy of Finland

OpenAlex ID: W2883095655