Improving wheelset stability of railway vehicles by using an H∞/LPV active wheelset system

Vu, V.T. and Tran, V.D. and Truong, M.H. and Sename, O. and Gáspár, Péter (2021) Improving wheelset stability of railway vehicles by using an H∞/LPV active wheelset system. PERIODICA POLYTECHNICA TRANSPORTATION ENGINEERING, 49 (3). pp. 261-269. ISSN 0303-7800 10.3311/PPTR.18573

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Abstract

The complexity of railway vehicle structures has been part of an evolutionary process for almost two hundred years. Challenges such as increased weight, increased maintenance, higher costs and energy consumption have become common. The vision for future railway vehicles is to reduce complexity, hence enable simpler structures and reduce maintenance and cost, and of course various research challenges arise from this. In fact, a number of papers in the railway engineering literature have presented practical ways to control steering of railway vehicles to improve performance. The model of the railway wheelset is highly nonlinear, mainly due to the nature of the wheelset structure and the related wheel-rail contact forces involved during operation. In this paper, the simplest design in terms of retrofitting, the actuated solid-axle wheelset is considered, we investigate actively controlled wheelsets from a Linear Parameter Varying (LPV) control aspect. We use the grid-based LPV approach to synthesize the H∞/LPV controller, which is self-scheduled by the forward velocity, as well as the longitudinal and lateral creep coefficients. The aim of the controller is to reduce the lateral displacement and yaw angle of the wheelset. Simulation results show that the proposed controller ensures the achievement of the above targets in the considered frequency domain up to 100 rad/s. © 2021 Budapest University of Technology and Economics. All rights reserved.

Item Type: Article
Uncontrolled Keywords: CONTROLLERS; vehicles; Costs; Wheels; Energy utilization; Frequency domain analysis; Railroads; H∞ control; Lateral displacements; ACTIVE CONTROL; Linear Parameter Varying Control; Improve performance; Research challenges; Locomotives; Evolutionary process; Railway vehicles; Rails; Creep coefficient; Active wheelset; Linear Parameter Varying (LPV) system; Railway engineering; Wheel-rail contact forces;
Subjects: Q Science > QA Mathematics and Computer Science > QA75 Electronic computers. Computer science / számítástechnika, számítógéptudomány
Divisions: Systems and Control Lab
SWORD Depositor: MTMT Injector
Depositing User: MTMT Injector
Date Deposited: 11 Jan 2022 09:23
Last Modified: 11 Jan 2022 09:23
URI: https://eprints.sztaki.hu/id/eprint/10257

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