Optimization of the Supply Voltage System in Interleaved Converters Using Intercell Transformers
Résumé
Interleaved power converters are now used in many different conversion systems involving various topologies (series or parallel) and related to different fields or loads. This paper deals with interleaved parallel commutation cells using coupling transformers with a possibly high number of cells. The first part of the paper is a reminder of the basics of magnetic couplers addressing monolithic as well as distributed implementations. The limits associated with the conventional supply of such couplers (supply voltages forming a direct polyphase system) are described. In the second part of the paper, an optimized voltage supply improving the performances of the system is introduced. Experimental results obtained on a seven-cells test bench validate the approach
Mots clés
Power electronics
DC-DC power convertors
Voltage regulators
Uninterruptible power supply
Bench test
Test bench
Experimental study
Performance evaluation
Forming
Implementation
Monolithic integrated circuit
Addressing
Coupler
Series parallel connection
Electric transformer
Power converter
Power supply
Optimization method
Optimization