Document Type
Conference Proceeding
Publication Date
10-2020
Publisher
Institute of Electrical and Electronic Engineers (IEEE)
Source Publication
2020 IEEE Energy Conversion Congress and Exposition (ECCE)
Source ISSN
9781728158273
Abstract
In order to reduce the size and weight of transmission cables, high direct current (DC) bus voltage is desired for electrical machine drives used in the hybrid powertrains of more-electric aircraft (MEA). An integrated modular machine drive (IMMD) with DC-link capacitors connected in series is adopted to break down the supply voltage for each drive unit. With lower electrical stress, partial discharge (PD) risks at high altitudes can be significantly reduced. This paper deals with the challenge of active DC-link voltage balancing control in a megawatt-level integrated modular machine drives. Voltage closed-loop control is developed under the challenges of high electrical frequency and limited switching frequency. The impact of drive unit count and component parameter variations has been investigated, highlighting the design tradeoffs of the IMMD with series DC-link capacitors.
Recommended Citation
Wu, Fan; El-Refaie, Ayman M.; and Jahns, Thomas M., "Active Voltage Balancing of Integrated Modular Drive with Series DC-Link Capacitors" (2020). Electrical and Computer Engineering Faculty Research and Publications. 692.
https://epublications.marquette.edu/electric_fac/692
Comments
Accepted version. "Active Voltage Balancing of Integrated Modular Drive with Series DC-Link Capacitors," Published as a part of the conference proceedings, 2020 IEEE Energy Conversion Congress and Exposition (ECCE), (October 2020) : 1469-1476. DOI. © 2020 Institute of Electrical and Electronic Engineers (IEEE). Used with permission.