Ohio State University Induction Machine

Overview

Topology

• 2.7 MW ring induction motor with a performance goal of 13 kW/kg and efficiency of >96 percent
• Relatively high pole count and fundamental frequency.
• The Variable Cross-Section Wet Coil (VCSWC) technology utilizes direct fluid cooling on a tape conductor, which is the width of the slot in the active area, and widens at the end turns to maximize heat transfer and therefore current density.

Aircraft Level Integration

• 10MW motor integrated with a turbofan.

Validation

• Motor 1 (300kW) shown validated cooling path and stator manufacturing.
• Motor 2 (1MW) validates tape coil fabrication and stator integration.
• Motor 3 (2.7MW) validates performance.

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