A hierarchical cascaded multilevel converter with continuous uniform SOC management for battery storage systems
by Zuhair Alaas; Jianfei Chen; Caisheng Wang
International Journal of Powertrains (IJPT), Vol. 11, No. 2/3, 2022

Abstract: This paper presents a hierarchal cascaded multilevel converter (HCMC) for continuous uniform SOC operation of battery energy storage for a powertrain system. The proposed HCMC is a combination of half-bridge converters and H-bridge unfolders with the feature of modular design for cost reduction and reliability improvement. Furthermore, continuous uniform SOC operation can be achieved via the proposed topology without adding additional balancing circuits, which guarantees high utilisation and reliability of the batteries. Failed individual battery modules/cells can be bypassed via the converter without bringing down the whole battery system. Detailed hardware implementation is described with a double reference signal-based carrier phase-shifted modulation scheme. Both simulation and experimental results have been carried out to verify the performance of the proposed HCMC with a continuous uniform SOC control strategy.

Online publication date: Mon, 08-Aug-2022

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Powertrains (IJPT):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com