TY - GEN
T1 - Liquid Metal based Cooling for Power Electronics Systems with Inductor Integrated Magnetohydrodynamic Pump (MHD Pump)
AU - Fan, Junchong
AU - Zhang, Yue
AU - Wang, Jin
AU - Chinthavali, Madhu S.
AU - Moorthy, Radha K.
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - This paper proposes and demonstrates a liquid metal-based cooling system for power converters with an inductor integrated magnetohydrodynamic (MHD) pump. The inductor in this case not only functions as the pump for liquid metal but also can be an essential part of typical power converters such as the output inductor of a buck converter. Two prototypes of liquid metal-based cooling systems were designed and built. The first prototype is an MHD pump with an external current source and permanent magnets and to evaluate the effectiveness and power consumption of liquid metal based cooling. The second prototype for the first time integrates the MHD pump into an inductor, which eliminates the need for an external power supply and permanent magnets. Since the inductor is part of the power converter to be cooled, the flow rate can be self-adjusted with the load condition. Simulation and experimental results validate the concept of the inductor integrated liquid metal pump and demonstrate the advantage of the liquid metal cooling system over non-metallic fluid-based liquid cooling systems in terms of power density, cooling efficiency, power consumption, reduction of rotatory components, and lowered acoustic noise.
AB - This paper proposes and demonstrates a liquid metal-based cooling system for power converters with an inductor integrated magnetohydrodynamic (MHD) pump. The inductor in this case not only functions as the pump for liquid metal but also can be an essential part of typical power converters such as the output inductor of a buck converter. Two prototypes of liquid metal-based cooling systems were designed and built. The first prototype is an MHD pump with an external current source and permanent magnets and to evaluate the effectiveness and power consumption of liquid metal based cooling. The second prototype for the first time integrates the MHD pump into an inductor, which eliminates the need for an external power supply and permanent magnets. Since the inductor is part of the power converter to be cooled, the flow rate can be self-adjusted with the load condition. Simulation and experimental results validate the concept of the inductor integrated liquid metal pump and demonstrate the advantage of the liquid metal cooling system over non-metallic fluid-based liquid cooling systems in terms of power density, cooling efficiency, power consumption, reduction of rotatory components, and lowered acoustic noise.
KW - High efficiency cooling system
KW - High power density
KW - Junction temperature
KW - Liquid metal cooling
KW - Magnet components integration
KW - Magnetohydrodynamic (MHD) pump
UR - http://www.scopus.com/inward/record.url?scp=85123987157&partnerID=8YFLogxK
U2 - 10.1109/WiPDA49284.2021.9645139
DO - 10.1109/WiPDA49284.2021.9645139
M3 - Conference contribution
AN - SCOPUS:85123987157
T3 - 2021 IEEE 8th Workshop on Wide Bandgap Power Devices and Applications, WiPDA 2021 - Proceedings
SP - 310
EP - 315
BT - 2021 IEEE 8th Workshop on Wide Bandgap Power Devices and Applications, WiPDA 2021 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th Annual IEEE Workshop on Wide Bandgap Power Devices and Applications, WiPDA 2021
Y2 - 7 November 2021 through 11 November 2021
ER -