Comparison of multi-phase interleaved boost converters with various coupled inductor topologies

Download

index.pdf

Date

2022-2

Author

Gökmen, Raşit

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

497
views

179
downloads

Multi-phase interleaved boost converters are widely used in high power applications thanks to their high efficiency, high power density, increased output power capability and low input current ripple features. However, increasing the phase number results in an increase in the overall volume of the converter. In order to reduce the volume of the converter, inductors in multi-phase interleaved boost converters can be coupled. For a two-phase interleaved boost converter, loosely-coupled inductor (LCI), close-coupled inductor (CCI) and integrated-winding coupled inductor (IWCI) are the most popular coupled inductor topologies. To clarify the advantages of one coupled inductor topology over the others, 2kW two-phase interleaved boost converters with these coupled inductor topologies are compared under the condition where converters input current ripple and output filter size are kept constant. By this way, changing the inductor type does not have an effect on the rest of converter where the same filter components can be used for all converters with different inductor topologies. For each coupled inductor topology, a systematic design methodology is proposed and all inductors are designed by using these methodologies. A figure of merit (FOM) is developed based on the total power loss of the converters and inductors total volume and weight to compare overall performances. Designs are experimentally verified and the results show that all topologies with coupled inductors have a better efficiency compared to the converter with discrete inductors and LCI topology is found to have the best FOM among all designs.

Subject Keywords

Multi-phase interleaved boost converter, Magnetic coupling, Coupled inductor, Loosely-coupled inductor (LCI), Close-coupled inductor (CCI), Integrated winding coupled inductor (IWCI)

URI

https://hdl.handle.net/11511/96721

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Investigation of Electromagnetic Energy Harvesting by Using Fractal Antenna Ozdemir, Huriye; Nesimoglu, Tayfun (2017-06-24) Microwave energy harvesting has the potential to power low powered electronic micro systems. Here we propose a fractal antenna topology that may be used for the conversion of microwave energy into usable DC power. The design of a broadband antenna that uses fractal approach is investigated. Simulation results demonstrate that improvements may be obtained in bandwidth and gain characteristics of planar antennas by using fractal approach.
Modeling and Control of Interleaved Multiple-Input Power Converter for Fuel Cell Hybrid Electric Vehicles Hegazy, Omar; Van Mierlo, Joeri; Lataire, Philippe (2011-09-10) Interleaving techniques are widely used to reduce input/output ripples, to increase the efficiency and to increase the power capacity of the DC/DC converters. This paper proposes an interleaved multiple-input power converter (IMIPC) that interfaces the fuel cell and energy storage systems (e.g. Batteries or/and Supercapacitors) to the powertrain of the hybrid electric vehicles. The IMIPC is responsible for the power-flow management on-board vehicle for each operating mode. In this research, the IMIPC is pro...
Design of a Re-configurable dual frequency microstrip antenna with integrated RF MEMS switches Onat, Sinon; Ünlü, Mehmet; Alatan, Lale; Demir, Şimşek; Akın, Tayfun (2005-07-08) The complete design of a re-configurable dual frequency antenna structure, including its integrated RF MEMS switches and their actuation lines together with a CPW feed, is introduced. The number of switches used in the inset is decreased compared to the hybrid design we presented previously (Onat, S. et al., IEEE Int. Antennas and Propag. Symp., vol.2, p.1812-15, 2004). Instead of utilizing available RF MEMS switches, new switches suitable for this application are designed. Two different switch configuratio...
Design of series-fed printed slot antenna arrays excited by microstrip lines İncebacak, Mustafa; Alatan, Lale; Department of Electrical and Electronics Engineering (2010) Series-fed printed slot antenna arrays excited by microstrip lines are low profile, easy to manufacture, low cost structures that found use in applications that doesn’t require high power levels with having advantage of easy integration with microwave front-end circuitry. In this thesis, design and analysis of microstrip line fed slot antenna arrays are investigated. First an equivalent circuit model that ignores mutual coupling effects between slots is studied. A 6-element array is designed by using this e...
Classification of Grid Connected Transformer less PV Inverters with a Focus on the Leakage Current Characteristics and Extension of Topology Families Ozkan, Ziya; Hava, Ahmet Masum (2015-01-01) Grid-connected transformerless photovoltaic (PV) inverters (TPVIs) are increasingly dominating the market due to their higher efficiency, lower cost, lighter weight, and reduced size when compared to their transformer based counterparts. However, due to the lack of galvanic isolation in the low voltage grid interconnections of these inverters, the PV systems become vulnerable to leakage currents flowing through the grounded star point of the distribution transformer, the earth, and the distributed parasitic...

Citation Formats

R. Gökmen, “Comparison of multi-phase interleaved boost converters with various coupled inductor topologies,” M.S. - Master of Science, Middle East Technical University, 2022.