Energy Saving design scheme for electric vehicle battery chargers



Title: Optimal trade-off between hard and soft-switching to achieve energy saving in industrial electric vehicles

Authors: Pramod Kumar Prasobhu, Student Member, IEEE, Felix Hoffmann, Student Member, IEEE, Marco Liserre, Fellow, IEEE

Affiliation: Chair of Power Electronics,
Christian-Albrechts-Universitat zu Kiel, Kaiserstr. 2, 24143 Kiel, Germany
Email: pkp@tf.uni-kiel.de, fho@tf.uni-kiel.de, ml@tf.uni-kiel.de

Abstract—

DC/DC battery chargers used in industrial electric vehicle applications are designed to be size, weight and power efficient. Wide bandgap (WBG) devices which enable high frequency operations help reduce size of magnetics as well as the converter volume achieving better efficiencies compared to Si based solutions. It has not been often discussed in literature but in case of battery chargers the overall saved energy becomes a better performance indicator than the efficiency at rated power alone. This is due to their peculiar charge=discharge characteristics. In this paper, the design of a GaN (Gallium nitride) converter for an industrial battery charger application is studied. An optimal design procedure aiming at optimizing the converter energy utilization efficiency (EUE) over the complete state of charge (SoC) as well as minimizing BOM (Bill of Material) costs due to magnetics is presented in order to highlight the energy perspective. The results show considerable energy savings compared to conventional design methods.

Other information:
Presented at: IEEE-IES IECON 2018, Washington D.C. as part of SYPA travel grant and initiation
Research at: Chair of Power Electronics, CAU, Kiel, Germany
Audio license –
Sparks by Chaël https://soundcloud.com/chael_music
Creative Commons — Attribution 3.0 Unported — CC BY 3.0
http://creativecommons.org/licenses/b…
Music promoted by Audio Library https://youtu.be/XIoyEFrDRDo

admin

Bidirectional CuK converter for EV charger



Paper title- A Plug-in Electric Vehicle (PEV) with Compact Bidirectional CuK converter and Sturdier Induction motor drive

Authors- Chinmaya K A, G K Singh

Affiliation- Indian Institute of Technology Roorkee

Paper abstract- This paper proposes a CuK converter based integrated battery charger for plug-in electric vehicles (PEV) incorporating an induction motor (IM) drive in the propulsion system. IM drive is controlled with an advanced feed-forward field-oriented controlled (FFOC) in order to reduce the protuberance caused during load disturbance. Proposed bidirectional DC/DC converter is capable of performing buck/boost function during all modes of vehicle operation. It operates as a power factor correction (PFC) converter during plug-in charging mode, and
as conventional single switch inverting buck/boost converter in driving and regenerative braking modes. In addition, size, weight and cost of the charger are also reduced, as it involves the minimum number of components compared to existing buck/boost converters used in chargers. Simulations are performed on MATLAB/Simulink environment and a laboratory prototype of the aforementioned converter has been built to validate its feasibility.

admin

Energy Saving design scheme for electric vehicle battery chargers



Title: Optimal trade-off between hard and soft-switching to achieve energy saving in industrial electric vehicles

Authors: Pramod Kumar Prasobhu, Student Member, IEEE, Felix Hoffmann, Student Member, IEEE, Marco Liserre, Fellow, IEEE

Affiliation: Chair of Power Electronics,
Christian-Albrechts-Universitat zu Kiel, Kaiserstr. 2, 24143 Kiel, Germany

Email: pkp@tf.uni-kiel.de, fho@tf.uni-kiel.de, ml@tf.uni-kiel.de

Abstract—

DC/DC battery chargers used in industrial electric vehicle applications are designed to be size, weight and power
efficient. Wide bandgap (WBG) devices which enable high frequency operations help reduce size of magnetics as well as
the converter volume achieving better efficiencies compared to Si based solutions. It has not been often discussed in literature but in
case of battery chargers the overall saved energy becomes a better performance indicator than the efficiency at rated power alone.
This is due to their peculiar charge=discharge characteristics. In this paper, the design of a GaN (Gallium nitride) converter
for an industrial battery charger application is studied. An optimal design procedure aiming at optimizing the converter
energy utilization efficiency (EUE) over the complete state of charge (SoC) as well as minimizing BOM (Bill of Material)
costs due to magnetics is presented in order to highlight the energy perspective. The results show considerable energy savings
compared to conventional design methods.

Other information:
Presented at: IEEE-IES IECON 2018, Washington D.C. as part of SYPA travel grant and initiation

Research at: Chair of Power Electronics, CAU, Kiel, Germany

Audio license –
Sparks by Chaël https://soundcloud.com/chael_music
Creative Commons — Attribution 3.0 Unported — CC BY 3.0
http://creativecommons.org/licenses/b…
Music promoted by Audio Library https://youtu.be/XIoyEFrDRDo

admin

The Future of Battery Storage: A Look Inside The Epic Console 2.0 | HindlePower, Inc.



This is your chance to learn how the Epic Console 2.0 takes compact battery enclosure to a new level.

HindlePower’s EPIC Series Console 2.0 is designed to maximize DC system performance and battery life, saving YOU time and money. This NEMA 3R modular enclosure, with built in intelligence, will safely house any combination of batteries, chargers, DC distribution, and/or other ancillary equipment. Equipped with the HindleHealth System, the EPIC Series Console 2.0 will keep your battery at the ideal temperature in the most extreme of environments, giving you peace mind.

https://www.hindlepowerinc.com/products/epic-series-console-20/

https://www.hindlepowerinc.com
https://www.hindlepowerinc.com/education/

admin