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Keywords = multi-port power conditioner

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20 pages, 5644 KB  
Article
Multi-Port and -Functional Power Conditioner and Its Control Strategy with Renewable Energy Access for a Railway Traction System
by Fujun Ma, Yulin Kuang, Zhengwen Wang, Gelin Huang, Dexing Kuang and Cheng Zhang
Energies 2021, 14(19), 6146; https://doi.org/10.3390/en14196146 - 27 Sep 2021
Cited by 12 | Viewed by 2581
Abstract
To relieve the contradiction between supply and demand, a multi-port power conditioner (MP-PC) and control strategy with renewable energy access for a railway traction system is presented, which is mainly composed of full-bridge-based MMC and isolated DC/DC converters. As for the full-bridge-based MMC, [...] Read more.
To relieve the contradiction between supply and demand, a multi-port power conditioner (MP-PC) and control strategy with renewable energy access for a railway traction system is presented, which is mainly composed of full-bridge-based MMC and isolated DC/DC converters. As for the full-bridge-based MMC, the equivalent model is established and its novel voltage control method is proposed, which can provide a medium/low-voltage DC-link. A renewable energy system is connected to the system through the DC-link, so the MP-PC can achieve on-site consumption and balance between the load power and output power of RESs. Meanwhile, with the proposed control strategy, MP-PC can achieve three-phase power balance control and improve the operation performance of the railway traction system. Finally, the traction power platform and simulation model are established in the lab, and the topology and control strategy of MP-PC are verified effectively. Full article
(This article belongs to the Special Issue Frontier in Special Power Conversion Systems and Control)
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