EPE Association: EPE 2015 - LS5a: Advanced Power Converter Topologies

EPE 2015 - LS5a: Advanced Power Converter Topologies
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2015 ECCE Europe - Conference > EPE 2015 - Topic 02: Power Converter Topologies and Design > EPE 2015 - LS5a: Advanced Power Converter Topologies

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   An AC-DC Multilevel Converter Feasible for Traction Applications
By Dalton HONORIO [View]
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Abstract: This paper proposes an ac-dc bidirectional power converter topology consisting of an arrangement of full-bridge converters based on the three-state switching cell using a medium-frequency isolation transformer. The topology description and simulation results for the dynamic conditions are presented and discussed on detail.

   Eight-level DC-AC Converter using Four-Switch Extended Commutation Cells
By Erik LEMMEN [View]
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Abstract: The extended commutation cell is a four-port, four-switch cell that allows for bidirectional energy transport in two orthogonal directions throughout the cell. By cascading multiple cells a multilevel converter can be constructed with a high number of cells. The voltage across each cell capacitor can be adjusted independently of the load, resulting in high flexibility in output levels. This paper presents the analysis, design and verification of a 4.4 kW eight-level dc-ac converter. The capacitor voltage control is operated with closed loop control and the output is operating in open loop. The experimental results are in agreement with the simulations are show the cell's potential for application in multilevel power converters.

   Optimised Operating Range of Modular Multilevel Converters for AC/AC Conversion with Failed Modules
By Jakub KUCKA [View]
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Abstract: AC/AC modular multilevel topologies Modular Multilevel Matrix Converter, Hexverter, and Modular Multilevel Converter in back-to-back configuration are still operable with one or more failed non-redundant modules. This paper proposes two novel approaches for the operation of these converter topologies in wind energy systems with a reduced number of modules. For each topology, the remaining operating area for different scenarios of failed modules is presented, and the influence on the annual energy production is shown.

   POPS: the 60MW power converter for the PS accelerator. Control strategy and performances
By Fulvio BOATTINI [View]
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Abstract: The main power supply of Proton-Synchrotron (PS) accelerator is one of the biggest at CERN. The old rotating machine system has been replaced with a new NPC based DC/DC power supply named POPS (Power system for PS main magnets) with capacitor banks as energy storage mean. POPS is in operation since February 2011. The operation of the PS accelerator requires a specific design of the control system with very high performance requirements in term of accuracy and precision. This paper describes the main lines of the control strategies analysing the problems encountered and the solutions adopted. The performances of the converter are presented throughout the paper.

EPE 2015 - LS5a: Advanced Power Converter Topologies
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2015 ECCE Europe - Conference > EPE 2015 - Topic 02: Power Converter Topologies and Design > EPE 2015 - LS5a: Advanced Power Converter Topologies
	[return to parent folder]

	An AC-DC Multilevel Converter Feasible for Traction Applications By Dalton HONORIO	[View] [Download]
Abstract: This paper proposes an ac-dc bidirectional power converter topology consisting of an arrangement of full-bridge converters based on the three-state switching cell using a medium-frequency isolation transformer. The topology description and simulation results for the dynamic conditions are presented and discussed on detail.

	Eight-level DC-AC Converter using Four-Switch Extended Commutation Cells By Erik LEMMEN	[View] [Download]
Abstract: The extended commutation cell is a four-port, four-switch cell that allows for bidirectional energy transport in two orthogonal directions throughout the cell. By cascading multiple cells a multilevel converter can be constructed with a high number of cells. The voltage across each cell capacitor can be adjusted independently of the load, resulting in high flexibility in output levels. This paper presents the analysis, design and verification of a 4.4 kW eight-level dc-ac converter. The capacitor voltage control is operated with closed loop control and the output is operating in open loop. The experimental results are in agreement with the simulations are show the cell's potential for application in multilevel power converters.

	Optimised Operating Range of Modular Multilevel Converters for AC/AC Conversion with Failed Modules By Jakub KUCKA	[View] [Download]
Abstract: AC/AC modular multilevel topologies Modular Multilevel Matrix Converter, Hexverter, and Modular Multilevel Converter in back-to-back configuration are still operable with one or more failed non-redundant modules. This paper proposes two novel approaches for the operation of these converter topologies in wind energy systems with a reduced number of modules. For each topology, the remaining operating area for different scenarios of failed modules is presented, and the influence on the annual energy production is shown.

	POPS: the 60MW power converter for the PS accelerator. Control strategy and performances By Fulvio BOATTINI	[View] [Download]
Abstract: The main power supply of Proton-Synchrotron (PS) accelerator is one of the biggest at CERN. The old rotating machine system has been replaced with a new NPC based DC/DC power supply named POPS (Power system for PS main magnets) with capacitor banks as energy storage mean. POPS is in operation since February 2011. The operation of the PS accelerator requires a specific design of the control system with very high performance requirements in term of accuracy and precision. This paper describes the main lines of the control strategies analysing the problems encountered and the solutions adopted. The performances of the converter are presented throughout the paper.