Discrete-time event-triggered state estimation of permanent magnet synchronous motor

Author:

Huong Dinh Cong1ORCID,Phuc Dang Tien1

Affiliation:

1. Faculty of Automotive Engineering Technology, Industrial University of Ho Chi Minh City, Ho Chi Minh City, Vietnam

Abstract

This article considers the design of a discrete-time event-triggered state observer and its application for state vector estimation of permanent magnet synchronous motor. A novel discrete-time event-triggered mechanism is first proposed, and then a new event-triggered state observer is designed to estimate the state vectors of a nonlinear system subject to unknown disturbances. Unlike traditional state estimation methods, the one in this article utilizes information on the output, which only updates when an event-triggered condition holds. By employing the Lyapunov–Krasovskii approach and well-known inequalities, we derive a sufficient condition in terms of a convex optimization problem to guarantee the existence of the event-triggered state observer. Finally, the theoretical analysis of the proposed method is applied to estimate the state vector of the permanent magnet synchronous motor.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Control and Systems Engineering

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