A_Switched-Capacitor_DCDC_Converter_With_Variable_Number_of_Voltage_Gains_and_Fault-Tolerant_Operation.pdf (351.94 kB)
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Auto-appraisal of voltage rating for switched-capacitor DC-DC converters

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conference contribution
posted on 09.11.2021, 13:21 by H Taghizadeh, Andrew CrossAndrew Cross, N Narayanan-Kuruveettil
Resonant Switched Capacitor (SC) DC-DC converters are showing potential for use in medium to high-power applications. The high-cell count in these applications means that for a given voltage conversion ratio there are theoretically a large number of alternative topologies that can be synthesised. However, each of these topologies may exhibit different competing characteristics, for example total VA rating of capacitors, total VA rating of switches, number of switches and individual switch voltage rating. Obtaining an optimum topology in terms of given design constraints is therefore important requirement. This paper builds on previous work by the authors by presenting a method for the automatic calculation of the voltage ratings of the components in a SC converter. This result along with earlier work, allows for the calculation of VA ratings, which are an important metric when comparing competing circuits. In addition, a new Canonical Cell topology is presented that extends the range of SC circuits that can be analysed using this method, to cover so-called Ladder circuits. The method is validated against detailed Spice simulations and measurements from a hardware prototype.

Funding

GE Grid Solutions, Stafford, UK

Innovate UK

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020)

Pages

176 - 181

Source

The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020), 2021

Publisher

IET

Version

AM (Accepted Manuscript)

Publisher statement

This paper is a postprint of a paper submitted to and accepted for publication in The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020) and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at the IET Digital Library.

Publication date

2021-09-22

Copyright date

2021

ISBN

9781839535420

Book series

IET Conference Publications; CP766

Language

en

Location

Virtual Conference

Event dates

15-17 Dec. 2020

Depositor

Dr Andrew Cross (email: A.Cross@lboro.ac.uk | regno: 5023638). Deposit date: 8 November 2021

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