Mathematical model and control of a three-level boost converter used as electronic interface for fuel cell vehicles

Author(s)

Ribeiro Silva, Lucas Jonys ; Campos, Marcio Von Rondow ; Fagundes, Thales Augusto ; Alves Neves, Rodolpho Vilela ; Machado, Ricardo Quadros ; Oliveira, Vilma Alves

• Document type: Journal article
• Source: 2023 IEEE 2ND INDUSTRIAL ELECTRONICS SOCIETY ANNUAL ON-LINE CONFERENCE, ONCON; v. N/A, p. 6-pg., 2023-01-01.

Abstract

Several topologies of dc-dc converters have been developed seeking a high voltage gain, high capability to power processing and high efficiency. The complete modeling of these devices allows the proper choice of components, as well as the design of controllers. This paper presents an average and small-signal modeling of the three-level boost converter (TLBC) characterized by reduced stress on switches, low electromagnetic interference and low voltage and current ripple. The static voltage gain of the converter is calculated based on the developed model and the influence of all parasitic resistances is evaluated, resulting in a graphical analysis and equations that allow the design of the components. Theoretical analysis and the mathematical results obtained are validated through simulations. A cascade control for terminal voltage is developed using PI controllers designed by the frequency response and root locus diagram obtained by the modeling. The results verify that the output voltage is maintained at the reference value in a vehicular application. (AU)

• FAPESP's process: 20/05865-3 - Equalization of energy storage devices for the management and optimization of DC microgrids that use alternative sources as main source
• Grantee: Thales Augusto Fagundes
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 22/00628-9 - Energy management system of a hybrid-flex light urban vehicle
• Grantee: Lucas Jonys Ribeiro Silva
• Support Opportunities: Scholarships in Brazil - Doctorate