Work

Dynamic LQR control with an Extended State Observer for Flywheel Supported by Active Magnetic Bearings

Year: 2026

Type: article

Abstract: Flywheel Energy Storage Systems (FESS) suspended by Active Magnetic Bearings (AMB) are fundamental to allowing high-velocity operations with negligible friction losses, making them excellent for modern energy grids. However, these systems operate at high speeds, which induce strong effects, such as couplings and disturbances, that affect the stability of the system. To address this challenge, this investigation proposes and designs a dynamic gain-scheduled Linear Quadratic Regulator (LQR) control scheme with an Extended State Observer (ESO) to stabilize a rotor magnetically levitated Flywheel Energy Storage System (FESS). To validate the proposed control system, a multi-physics model was evaluated using MATLAB. The results show a reduction of 36% in maximum radial displacement and 37% for angular peaks with a minimum change of 2.2% in energy consumption compared to the conventional LQR. Finally, the proposed controller ensures robust 5-DOF stabilization and mechanical safety for FESS in highly dynamic environments.

Source: International Journal of Mechanical Engineering

DOI: 10.14445/23488360/ijme-v13i10p104

Authors: Cesar Andre Chambi Quispe, Fernando Alberto Panca Ihue, Edmundo Honorio Ocola Ticona, Diego Fernando Macedo Calcina, Christofer Alex Diaz Arapa

Institution: Universidad Nacional de San Agustin de Arequipa

Language: English

Topic: Magnetic Bearings and Levitation Dynamics

Subfield: Control and Systems Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W7225376854

FWCI:

Cites:

Cited by:

Related to: 10