Multiport Bidirectional SRM Drives for Solar-Assisted Hybrid Electric Bus Powertrain With Flexible Driving and Self-Charging Functions

Gan, C, Jin, N, Sun, Q, Kong, W, Hu, Y ORCID: 0000-0002-1007-1617 and Tolbert, LM (2017) Multiport Bidirectional SRM Drives for Solar-Assisted Hybrid Electric Bus Powertrain With Flexible Driving and Self-Charging Functions. IEEE Transactions on Power Electronics, 33 (10). pp. 8231-8245.

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Official URL: https://ieeexplore.ieee.org/document/8168409

Abstract

The hybrid electric bus (HEB) presents an emerging solution to exhaust gas emissions in urban transport. This paper proposes a multiport bidirectional switched reluctance motor (SRM) drive for solar-assisted HEB (SHEB) powertrain, which not only improves the motoring performance, but also achieves flexible charging functions. To extend the driving miles and achieve self-charging ability, photovoltaic (PV) panels are installed on the bus to decrease the reliance on fuelsbatteries and charging stations. A bidirectional front-end circuit with a PV-fed circuit is designed to integrate electrical components into one converter. Six driving and five charging modes are achieved. The dc voltage is boosted by the battery in generator control unit (GCU) driving mode and by the charge capacitor in battery driving mode, where the torque capability is improved. Usually, an extra converter is needed to achieve battery charging. In this paper, the battery can be directly charged by the demagnetization current in GCU or PV driving mode, and can be quickly charged by the PV panels and GCUAC grids at SHEB standstill conditions, by utilizing the traction motor windings and integrated converter circuit, without external charging converters. Experiments on a three-phase 128 SRM confirm the effectiveness of the proposed drive and control scheme.

Item Type:	Article
Uncontrolled Keywords:	Reluctance motors, Torque, Batteries, Windings, Demagnetizarion, Charging stations
Depositing User:	Symplectic Admin
Date Deposited:	09 Jan 2018 09:14
Last Modified:	19 Jan 2023 06:46
DOI:	10.1109/TPEL.2017.2780622
Related URLs:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3015040