Cooling IGBT Modules with VDF - Parker

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Water-based Cooling System • Cons • Fluid leaks can cause serious damage and failure of equipment. • Water can be corrosive and has potential for biological contamination. • High flow rates require large pumps, power supply, pipe diameters and reservoir. • Protection required as a pressurized system. • If operated in series there is thermal stacking. • Potential for condensation. • Ethylene glycol is not environmentally friendly. 26 Levett, Howes, Saums – Cooling of IGBT Modules with Vaporizable Dielectric Fluid • IMAPS France ATW Thermal 2008 • La Rochelle, France
VDF-Based Cooling System • Pros • Very good thermal performance/cost ratio. • Under cyclical load, reduced module baseplate ΔT.* • Low flow rates allow use of: • Small, low-power pump • Small reservoir • Reduced-diameter tubing. • Lower overall system weight. • Dielectric coolant reduces risk of short circuits or damage in case of a leak. • Heat exchanger location can be remote from heat sources. • Low thermal stacking for liquid cold plates operated in series. • Allows use of simple quick-disconnect system for coolant loop. * For module failure mode due to insulator-to-baseplate delamination, a 10°C reduction can increase life by a factor of three. 27 Levett, Howes, Saums – Cooling of IGBT Modules with Vaporizable Dielectric Fluid • IMAPS France ATW Thermal 2008 • La Rochelle, France
Page 1 and 2: Cooling of IGBT Modules with Vapori
Page 3 and 4: A Brief History • 1999: Thermal F
Page 5 and 6: How does VDF cooling work? Pump 3 x
Page 7 and 8: Key Points: VDF Cooling Loop • VD
Page 9 and 10: Test Bed and Conditions • Air-coo
Page 11 and 12: Phase Module: 1200VAC 450A EconoDUA
Page 13 and 14: IGBT Thermal Image at Load Thermal
Page 15 and 16: Case A: Air-Cooled Extruded Aluminu
Page 17 and 18: Case D: Water-cooled Custom Aluminu
Page 19 and 20: Case E: Prototype VDF Liquid Cold P
Page 21 and 22: Heat Sink/Cold Plate Performance Co
Page 23 and 24: Cooling Loop Comparison Table Table
Page 25: Water-based Cooling System • Pros
Page 29 and 30: 750kW/1000hp Proof-of-Concept Inver
Page 31 and 32: VDF Cooling Loop for Single Pluggab
Page 33 and 34: Mérci! 33 Levett, Howes, Saums - C
Page 35 and 36: Appendix 35 Levett, Howes, Saums -
Page 37: Vaporizable Dielectric Fluids • A

Cooling IGBT Modules with VDF - Parker

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