Hybrid Ultracapacitor-Battery Energy Storage System Based on Quasi-Z-source Topology and Enhanced Frequency Dividing Coordinated Control for EV

An ultracapacitor-battery hybrid energy storage system (HESS) for an electric vehicle (EV) based on a bidirectional quasi-Z-source inverter (qZSI) is proposed in this paper. The buck/boost characteristic in the qZSI enables the HESS incorporated into the traction inverter system. The battery convert...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2016-11, Vol.31 (11), p.7598-7610
Main Authors: Hu, Sideng, Liang, Zipeng, Fan, Dongqi, He, Xiangning
Format: Article
Language:English
Subjects:
Batteries
bi-directional
Bidirectional control
Dynamical systems
Dynamics
Electric batteries
Electric currents
Electric power generation
Electric vehicles
Electronics
Energy storage
Frequency control
frequency dividing coordinated control
hybrid energy storage system
Inverters
Power distribution
Power supply
quasi-Z-source inverter
Simulation
Traction motors
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Summary:An ultracapacitor-battery hybrid energy storage system (HESS) for an electric vehicle (EV) based on a bidirectional quasi-Z-source inverter (qZSI) is proposed in this paper. The buck/boost characteristic in the qZSI enables the HESS incorporated into the traction inverter system. The battery converter can be eliminated and the rated voltages for the battery package and UCs are reduced. The steady power distribution principle is explained under various operation modes. An enhanced frequency dividing coordinated control strategy is established to optimize the dynamic power regulation and the battery current stress in short timescale. Both the simulation and experimental results in time and frequency domain validate the performance of the proposed HESS.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2016.2518749