Article
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Backstepping Control Design in Conjunction with an EKF-based Sensorless Field-Oriented Control of an IPMSM
Version 1
: Received: 19 October 2022 / Approved: 20 October 2022 / Online: 20 October 2022 (07:01:34 CEST)
A peer-reviewed article of this Preprint also exists.
Uyulan, C. Backstepping Control Design in Conjunction with an EKF-Based Sensorless Field-Oriented Control of an IPMSM. Qeios 2024, doi:10.32388/ixusw5. Uyulan, C. Backstepping Control Design in Conjunction with an EKF-Based Sensorless Field-Oriented Control of an IPMSM. Qeios 2024, doi:10.32388/ixusw5.
Abstract
The collector and brushless electronic commutation machines based on the working principle of the direct current machines have been widely used in industrial applications through the help of the developments in power electronics, microelectronics, permanent magnets, microprocessors&control, digital signal processing technologies, etc. Internal permanent magnet synchronous motors (IPMSMs) are used in increasing numbers due to their advantages such as high torque/current and torque/inertia, robust construction, high efficiency, reliability, etc. The problems brought by position sensors, especially in terms of application, performance, mass production, and cost, have made sensorless control a necessity in drive systems and applications.This paper presents a backstepping control method for speed sensorless IPMSM based on an extended Kalman filter (EKF). First, a comprehensive nonlinear dynamical model of the IPMSM in the direct and quadrature ( ) rotor frame is derived and its state-space representation is obtained. Then, the rotor speed and current tracking backstepping controllers are designed to achieve precise tracking and anti-disturbance performance. The designed controllers are embedded into the field-oriented control (FOC) scheme. The asymptotic stability condition for the backstepping controller is guaranteed through the Lyapunov stability theorem. Finally, An EKF is designed for estimating the immeasurable mechanical parameters of IPMSM and tracking the system states in a finite time with high steady-state precision. The effectiveness of the proposed methodology is proved by conducting simulations having various dynamic operating conditions such as sudden torque load change, command speed change, and parameter variation.
Keywords
Sensorless FOC; IPMSM; backstepping control; EKF
Subject
Engineering, Control and Systems Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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