Intermediate and light load efficiency improvement of a high-power density bidirectional DC-DC converter in hybrid electric vehicles with MR fluid gap inductor

2014 ◽  
Author(s):  
Furqan Ahmed ◽  
Su-Han Kim ◽  
Honnyong Cha ◽  
Dong-Hun Kim ◽  
Heung-Geun Kim
Keyword(s):  
Power Density ◽  
Electric Vehicles ◽  
High Power ◽  
Hybrid Electric Vehicles ◽  
High Power Density ◽  
Efficiency Improvement ◽  
Mr Fluid ◽  
Light Load ◽  
Hybrid Electric

scholarly journals Design and Analysis of Partitioned-Stator Switched-Flux Dual-Excitation Machine for Hybrid Electric Vehicles

2018 ◽  
Vol 9 (3) ◽  
pp. 40
Author(s):  
Christopher Lee ◽  
Kwok Chau ◽  
Tze Ching ◽  
Ching Chan
Keyword(s):  
Permanent Magnet ◽  
Power Density ◽  
Electric Vehicles ◽  
High Power ◽  
Hybrid Electric Vehicles ◽  
Excitation Source ◽  
High Power Density ◽  
Hybrid Electric ◽  
Field Excitation

In this paper, an advanced partitioned-stator switched-flux dual-excitation (PS-SFDE) machine, which is highly suitable for hybrid electric vehicles (HEVs), is proposed. By artfully implementing two excitation sources, namely the high-power-density permanent-magnet (PM) source and the DC-field excitation source, the proposed machine can take benefits from both sides. Unlike the existing PS-SFDE machines that sacrifice the PM materials for DC-field winding accommodation, the proposed machine instead shares the space of the armature winding with the DC-field winding. Hence, comparable power and torque levels can be potentially achieved.

Wide Load Range Efficiency Improvement of a High-Power-Density Bidirectional DC–DC Converter Using an MR Fluid-Gap Inductor

2015 ◽  
Vol 51 (4) ◽  
pp. 3216-3226 ◽  
Author(s):  
Hafiz Furqan Ahmed ◽  
Honnyong Cha ◽  
Su-Han Kim ◽  
Dong-Hun Kim ◽  
Heung-Geun Kim
Keyword(s):  
Power Density ◽  
High Power ◽  
High Power Density ◽  
Efficiency Improvement ◽  
Load Range ◽  
Mr Fluid
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