Parametric Evaluation of DC-Bus Passive Components for Enhanced Regenerative Energy Performance in Elevator Drives
Nada SALHI
Abstract. Elevators play a huge role when it comes to the consumption of significant amounts of total energy in modern buildings. During their operation, however, losses of energy occur, mainly as heat in conventional systems, whereas regenerative elevator drives can recover this energy and convert it into useful electrical power. To better understand this process, a detailed MATLAB/Simulink model was used to capture the elevator’s electromechanical behavior and examine the influence of three DC-bus passive components on regenerative energy capture and DC-bus stability. The focus is on the input inductor L_1, the regenerative inductor L_2, and the smoothing capacitor C with parametric sweeps performed over L_1=2-10mH, L_2=1-5mH, and C=470-4700µF. The results obtained show that increasing L_1 and L_2 reduces recovered energy, while increasing C leads to some improvements in DC-bus stability with a minor reduction in energy recovery. Unlike many studies that focus on converters or energy storage, the novelty of this work lies in isolating the DC-bus passive components and demonstrating that increasing L_1 and L_2 leads to an approximately 7–8% reduction in recovered energy, while increasing C enhances voltage stability with only about a 3% of lost energy, which provides a component-level design guidance for regenerative elevator drives.
Keywords
Energy Recovery, Elevator Drive Systems, Regenerative Braking, DC-Bus Filtering, Passive Components
Published online 4/25/2026, 7 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Nada SALHI, Parametric Evaluation of DC-Bus Passive Components for Enhanced Regenerative Energy Performance in Elevator Drives, Materials Research Proceedings, Vol. 64, pp 1027-1033, 2026
DOI: https://doi.org/10.21741/9781644904091-127
The article was published as article 127 of the book Energy Futures
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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