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Asymmetrical Reluctance Machine

Summary

Researchers at Purdue University have developed a reluctance machine with an asymmetrical rotor pattern called asymmetrical reluctance machine (ARM). This new design has been optimized to improve the torque density significantly in one direction by sacrificing torque density in the reverse. As opposed to some symmetrical designs, such as the induction motor (IM) and permanent magnet synchronous motor (PMSM), the ARM can produce the same high torque densities without significant safety and cost concerns. Low manufacturing costs can be achieved because rare earth magnets are not needed. This development can prove to be useful in many applications, including the household appliances, automotive, and electronics industries.

Technology Benefits

Improved unidirectional torque density Lower manufacturing costs and reduced safety concerns

Technology Application

Manufacturing

Detailed Technology Description

Scott SudhoffPurdue Electrical and Computer Engineering

Countries

United States

Application No.

None

Country/Region

USA

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