ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Comparison of Per-unit Models of Phase-shifted Full-bridge Converter

Roja, P and John, V (2023) Comparison of Per-unit Models of Phase-shifted Full-bridge Converter. In: UNSPECIFIED.

[img] PDF
2023_11_Nat_pow_ele_con_NPEC_2023.pdf - Published Version
Restricted to Registered users only

Download (1MB) | Request a copy
Official URL: https://doi.org/10.1109/NPEC57805.2023.10384943


Advanced dc-dc converters such as phase-shifted full-bridge (PSFB) converters are employed in a wide range of applications owing to the features of fixed frequency operation and soft-switching for the devices. The converter design entails selecting many design parameters, resulting in multiple design choices for the same set of specifications. This necessitates a normalised comparison of the designs to analyse the performance indices. This paper studies and compares the per-unit models of the PSFB converter obtained using three established methods. Firstly, a large signal-based state space model of the converter considering the circuit non-idealities is presented. This is employed for developing the per-unit model of the PSFB converter using three models viz, state-plane normalization model, normalised large signal model and similarity transformation model. A study on the feasibility of the developed per-unit models and subsequent comparison is presented next. Next, the normalised designs of Si-based and SiC-based PSFB converters for a 1 kW, 400 V to 48 V system are compared. Finally, using the change of bases, a SiC-based converter for the aforementioned ratings is built and tested to verify the specifications. © 2023 IEEE.

Item Type: Conference Paper
Publication: 2023 11th National Power Electronics Conference, NPEC 2023
Publisher: Institute of Electrical and Electronics Engineers Inc.
Additional Information: The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords: DC-DC converters; Power electronics; Specifications; State space methods, Converter design; Dc/dc converters; Fixed frequency; Frequency operation; Large signal models; Per-unit model; Per-unitization; Phase-shifted full-bridge converter; Soft-switching; State-plane analyse, Silicon carbide
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 01 Mar 2024 11:07
Last Modified: 01 Mar 2024 11:07
URI: https://eprints.iisc.ac.in/id/eprint/84224

Actions (login required)

View Item View Item