Ultra-High Control Bandwidth Flying-Capacitor Converter – Design and Commissioning

For the realization of amplifiers with ultra-high control bandwidth, typically the series connection of high-frequency PWM H-bridges is considered in order to simultaneously achieve multi-level voltages and high effective switching frequency, which enables the required high cut-off frequency of the output filter and, thus, facilitates high control bandwidth. However, the approach is of high complexity, requires multiple isolated and bidirectional DC power supplies, which increase the overall size of the system, and, in addition, leads to elevated electromagnetic common-mode emissions that increase the filtering effort. Therefore, a realization based on the Flying-Capacitor Converter (FCC) topology is a promising candidate with regard to ultra-high control bandwidth. In order to clarify the advantages and disadvantages of both approaches, i.e., cascaded H-bridges and FCC, a research project in the context is proposed which should conceptualize, analyze and experimentally verify of an ultra-high bandwidth FC power converter.

Faculty Supervisor:

Luiz Antonio Correa Lopes

Student:

Partner:

Eidgenössische Technische Hochschule Zürich - dup

Discipline:

Engineering

Sector:

Energy and Utilities; Technology; Automotive

University:

Concordia University

Program: