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A variable current-limit control scheme for a bi-directional converter used in ultracapacitor applications (2018)
Journal Article
Ahmadi, B., Barati, F., & Karimi, C. (in press). A variable current-limit control scheme for a bi-directional converter used in ultracapacitor applications. Electric Power Components and Systems, 46(3), doi:10.1080/15325008.2018.1445139. ISSN 1532-5008

In ultracapacitor applications, generally, a bi-directional converter is connected to a DC bus and is designed to compensate rapid load variations on the bus. During transient phases, overloaded DC bus can push the converter out of its operating limi... Read More

Next generation integrated drive: a novel thermal and electrical integration technique for high power density converters used in automotive drive systems (2018)
Conference Proceeding
Ahmadi, B., Espina, J., De Lillo, L., Abebe, R., Empringham, L., & Johnson, C. M. (2018). Next generation integrated drive: a novel thermal and electrical integration technique for high power density converters used in automotive drive systems

In this paper, an innovative method of electro-thermal integration of a drive system is presented. Important challenges of this integration consist of, firstly coupled thermal design of switching power modules and PM electric motor and secondly integ... Read More

Highly-integrated power cell for high-power wide band-gap power converters (2017)
Conference Proceeding
Espina, J., Ahmadi, B., Empringham, L., De Lillo, L., & Johnson, C. M. (2017). Highly-integrated power cell for high-power wide band-gap power converters

The fast switching speeds and low specific conduction losses of wide band-gap semiconductors allow the realisation of high-frequency, high power-density switching converters with dramatically reduced passive component requirements compared to Silicon... Read More