Journal
ENERGIES
Volume 16, Issue 15, Pages -Publisher
MDPI
DOI: 10.3390/en16155750
Keywords
wireless power transfer; inductive power transfer; capacitive power transfer; light rail vehicles; power transfer systems
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Light rail vehicles (LRVs) are increasingly in demand to meet the transportation needs of growing urban populations sustainably. This paper reviews existing direct-contact and wireless power transfer (PT) technologies for LRVs and evaluates the feasibility and advantages of inductive power transfer (IPT) and capacitive power transfer (CPT) technologies. It highlights the efficacy of CPT in terms of power transfer capability, safety, and other factors. Limitations and recommendations for future works are also identified.
Light rail vehicles (LRVs) are increasingly in demand to sustainably meet the transport needs of growing populations in urban centres. LRVs have commonly been powered from the grid by direct-contact overhead catenary systems (OCS); however, catenary-free direct-contact systems, such as via a hidden rail, are popular for new installations. Wireless power transfer (WPT) is an emerging power transfer (PT) technology for e-transport with several advantages over direct contact systems, including improved aesthetics and reduced maintenance requirements; however, they are yet to be utilised in LRV systems. This paper provides a review of existing direct-contact and wireless PT technologies for LRVs, followed by an in-depth critical assessment of inductive power transfer (IPT) and capacitive power transfer (CPT) technologies for LRVs. In particular, the feasibility and advantages of CPT for powering LRVs are presented, highlighting the efficacy of CPT with respect to power transfer capability, safety, and other factors. Finally, limitations and recommendations for future works are identified.
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