Open AccessSMES/battery hybrid energy storage system based on bidirectional Z‐source inverter for electric vehicles
Author(s) -
Choobdari Omran Koosha,
Mosallanejad Ali
Publication year - 2018
Publication title -
iet electrical systems in transportation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.588
H-Index - 26
eISSN - 2042-9746
pISSN - 2042-9738
DOI - 10.1049/iet-est.2017.0100
Subject(s) - battery (electricity) , energy storage , electrical engineering , z source inverter , converters , power density , inverter , automotive engineering , computer data storage , power (physics) , electric vehicle , network topology , battery pack , engineering , computer science , topology (electrical circuits) , electronic engineering , voltage , computer hardware , physics , quantum mechanics , operating system
This study proposes a novel hybrid energy storage system (HESS) composed of a battery pack and a superconducting magnetic energy storage (SMES) for electric vehicle. Typically, the SMES has a higher power density and lower energy density than other energy storage devices, while battery has higher energy density. Thus, the overall HESS performance can be increased in power and energy density by combining SMES and batteries. The proposed HESS is designed based on bidirectional Z‐source inverter (ZSI). Compared to other SMES/battery‐based HESS topologies that are two stage designs (including DC/DC and AC/DC converters), in this topology, SMES and battery can be incorporated into the Z‐source network which results in lower cost and improved HESS performance. Furthermore, the battery converter has been eliminated due to the buck/boost feature of the ZSI. The fuzzy control method and filters are used to distribute power between the SMES and battery. This study also describes the proposed HESS performance principles and its operation in different modes.