<abstract xmlns="http://www.w3.org/1999/xhtml"><p>This paper presents a novel concept of a circuit for voltage balance of three series-connected capacitors or batteries, as well as the research results. The problem is related to the control of voltage sharing on series capacitors, supercapacitors or battery banks in energy storage systems or direct current (DC)-link of four-level neutral-point-clamped inverters. The proposed circuit is a switched-capacitor (SC) resonant converter composed of a single capacitor and seven transistor switches. Control of the converter makes it possible to transfer energy between any capacitors, by switching selected transistors. This paper presents the basic concept of the converter, an analysis of control strategies and the simulation results for various cases of voltage balancing.</p></abstract>

This paper presents a novel concept of a circuit for voltage balance of three series-connected capacitors or batteries, as well as the research results. The problem is related to the control of voltage sharing on series capacitors, supercapacitors or battery banks in energy storage systems or direct current (DC)-link of four-level neutral-point-clamped inverters. The proposed circuit is a switched-capacitor (SC) resonant converter composed of a single capacitor and seven transistor switches. Control of the converter makes it possible to transfer energy between any capacitors, by switching selected transistors. This paper presents the basic concept of the converter, an analysis of control strategies and the simulation results for various cases of voltage balancing.

Novel Converter for Voltage Balance in Series-Connected Capacitors and Batteries

Power Electronics and Drives

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Novel Converter for Voltage Balance in Series-Connected Capacitors and Batteries"}

This paper presents a novel concept of a circuit for voltage balance of three series-connected capacitors or batteries, as well as the research results. The...

Novel Converter for Voltage Balance in Series-Connected Capacitors and Batteries

Published Online: Nov 17, 2018

Page range: 65 - 74

Received: Feb 26, 2018

Accepted: Apr 21, 2018

DOI: https://doi.org/10.2478/pead-2018-0011

Keywords
Capacitor voltage balance, Multilevel converter, NPC four-level inverter, Voltage sharing, Supercapacitor, Battery

© 2018 Jakub Hachlowski, Robert Stala, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Novel Converter for Voltage Balance in Series-Connected Capacitors and Batteries

Published Online: Nov 17, 2018

Page range: 65 - 74

Received: Feb 26, 2018

Accepted: Apr 21, 2018

DOI: https://doi.org/10.2478/pead-2018-0011

KeywordsCapacitor voltage balance, Multilevel converter, NPC four-level inverter, Voltage sharing, Supercapacitor, Battery

© 2018 Jakub Hachlowski, Robert Stala, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Capacitor voltage balance, Multilevel converter, NPC four-level inverter, Voltage sharing, Supercapacitor, Battery