EPE Association: EPE 2003 - Topic 03e: Emerging Topologies

EPE 2003 - Topic 03e: Emerging Topologies
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2003 - Conference > EPE 2003 - Topic 03: POWER ELECTRONICS CONVERTER CIRCUITS > EPE 2003 - Topic 03e: Emerging Topologies

   [return to parent folder]

   A high-resolution multi-level voltage space phasor generation for an open-end winding induction motor drive
By M.R.Baiju; K.Gopakumar; V.T.Somasekhar; K.K.Mohapatra; L.Umanand [View]
[Download]

Abstract: A topology for high resolution voltage space generation for an open-end winding induction motor drive is presented in this paper. The open-end winding induction motor is fed from both ends by two 3-level inverters with asymmetrical DC links. This results in voltage space phasor levels equivalent to a conventional 9-level inverter. The 3-level inverters used in the proposed drive, are realised by cascading two 2-level inverters. In the multi-level carrier based SPWM used for the proposed drive, a progressive discrete DC bias depending upon the speed range is given to the reference wave to reduce the inverter switchings. The drive is implemented and tested with a 1Kw open-end winding induction motor and the experimental results are presented.

   Self-switching and protected converters: application to the design of a self-breaking reversible rectifier
By N. Roux; F. Richardeau; H. Foch [View]
[Download]

Abstract: The authors present an original commutation concept based on the operation of self-breaking switches. Two elementary self-protected topologies can be extracted : a reversible self-synchronous rectifier and a full-wave self-switching inverter. In this paper, the first topology is detailed and extended to a “real” three phase naturally reversible diodes bridge. This simple and original topology is able to recover the braking energy from a variable speed drive to a AC supply.

   Reduction of mass and volume of on-board multi-input voltage converter thanks to the SPARC topology
By G. Kalvelage; P. Aubin; T. Lequeu [View]
[Download]

Abstract: Converters used in railway applications require heavy and bulky equipment (filters, low frequency transformers, etc). FAIVELEY Transport has just filed a patent application for a new converter topology called Serial and Parallel Auto Regulated Configuration (SPARC). Compared to other converters available, SPARC reduces mass and volume. The unique feature of the SPARC technology is that it relies on a dynamic association of high-frequency transformers either using series or parallel mode or both. When the input voltage varies, the control connects the transformers in series and parallel according to the chopper frequency using semiconductor switches. These commutations are sequenced over time, so that only one part of the power is commuted at any one time. Consequently, input and output filters are significantly reduced. LMP university staff is carrying out a study of this topology with both teams sharing the work on simulations and prototypes.

   A new DC-AC converter for portable fuel cell applications
By G. Lefèvre; J.P. Ferrieux; J. Barbaroux; P. Boggetto; P. Charlat [View]
[Download]

Abstract: The paper presents a two-stages DC-AC converter (230 Vrms 50 Hz) for fuel cell in the field of middle power poprtable applications. The rated power is 2 kW. This paper describes the initial detailed specifications for DC-DC stage, analyses its operating and the choice of the main passive components.

EPE 2003 - Topic 03e: Emerging Topologies
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2003 - Conference > EPE 2003 - Topic 03: POWER ELECTRONICS CONVERTER CIRCUITS > EPE 2003 - Topic 03e: Emerging Topologies
	[return to parent folder]

	A high-resolution multi-level voltage space phasor generation for an open-end winding induction motor drive By M.R.Baiju; K.Gopakumar; V.T.Somasekhar; K.K.Mohapatra; L.Umanand	[View] [Download]
Abstract: A topology for high resolution voltage space generation for an open-end winding induction motor drive is presented in this paper. The open-end winding induction motor is fed from both ends by two 3-level inverters with asymmetrical DC links. This results in voltage space phasor levels equivalent to a conventional 9-level inverter. The 3-level inverters used in the proposed drive, are realised by cascading two 2-level inverters. In the multi-level carrier based SPWM used for the proposed drive, a progressive discrete DC bias depending upon the speed range is given to the reference wave to reduce the inverter switchings. The drive is implemented and tested with a 1Kw open-end winding induction motor and the experimental results are presented.

	Self-switching and protected converters: application to the design of a self-breaking reversible rectifier By N. Roux; F. Richardeau; H. Foch	[View] [Download]
Abstract: The authors present an original commutation concept based on the operation of self-breaking switches. Two elementary self-protected topologies can be extracted : a reversible self-synchronous rectifier and a full-wave self-switching inverter. In this paper, the first topology is detailed and extended to a “real” three phase naturally reversible diodes bridge. This simple and original topology is able to recover the braking energy from a variable speed drive to a AC supply.

	Reduction of mass and volume of on-board multi-input voltage converter thanks to the SPARC topology By G. Kalvelage; P. Aubin; T. Lequeu	[View] [Download]
Abstract: Converters used in railway applications require heavy and bulky equipment (filters, low frequency transformers, etc). FAIVELEY Transport has just filed a patent application for a new converter topology called Serial and Parallel Auto Regulated Configuration (SPARC). Compared to other converters available, SPARC reduces mass and volume. The unique feature of the SPARC technology is that it relies on a dynamic association of high-frequency transformers either using series or parallel mode or both. When the input voltage varies, the control connects the transformers in series and parallel according to the chopper frequency using semiconductor switches. These commutations are sequenced over time, so that only one part of the power is commuted at any one time. Consequently, input and output filters are significantly reduced. LMP university staff is carrying out a study of this topology with both teams sharing the work on simulations and prototypes.

	A new DC-AC converter for portable fuel cell applications By G. Lefèvre; J.P. Ferrieux; J. Barbaroux; P. Boggetto; P. Charlat	[View] [Download]
Abstract: The paper presents a two-stages DC-AC converter (230 Vrms 50 Hz) for fuel cell in the field of middle power poprtable applications. The rated power is 2 kW. This paper describes the initial detailed specifications for DC-DC stage, analyses its operating and the choice of the main passive components.