A new class of hybrid AC/AC direct power converters

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Klumpner, Christian, Wijekoon, Thiwanka and Wheeler, Patrick (2005) A new class of hybrid AC/AC direct power converters. In: 2005 IEEE Industry Applications Society Annual Meeting, 2-6 Oct 2005, Hong Kong, China.

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Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1518793

Abstract

Variable voltage and variable frequency conversion of electrical energy from an AC source to an AC load is done in traditional power converters via a DC-link where an energy storage element (electrolytic capacitors) is situated. Despite its well-known benefits, it has the disadvantage of being bulky and to limit the converter lifetime. On the other hand, Direct Power Conversion (DPC) is an attractive concept, which doesn’t need an energy storage buffer, but has two main disadvantages: reduced voltage transfer ratio (<0.86) and low immunity to voltage supply disturbances. This paper proposes a new approach to perform the power conversion by mixing various standard topologies of well-known power converters in order to improve their performance/behavior. Simulation and experimental results prove that the hybrid structures are able to boost the output voltage capability (some above unity) and/or to fully compensate unbalanced voltage supply.

Item Type:

Conference or Workshop Item (Paper)

RIS ID:

https://nottingham-repository.worktribe.com/output/703316

Additional Information:

Published in: Conference record of the 2005 IEEE Industry Applications Conference : fortieth IAS Annual Meeting, 2-6 October, 2005, Kowloon, Hong Kong. Piscataway, N.J. : IEEE, 2005. ISBN: 0-7803-9208-6. pp. 2374-2381, doi:10.1109/IAS.2005.1518793 © 2005 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Keywords:

AC-AC Power Convertors, Capacitor Storage

Schools/Departments:

University of Nottingham, UK > Faculty of Engineering > Department of Electrical and Electronic Engineering

Identification Number:

https://doi.org/10.1109/IAS.2005.1518793

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