Cost-Optimal Machine Designs Fulfilling Efficiency Requirements: a Comparison of IMs and PMSMs
Sprache des Vortragstitels:
IEMDC 2017, IEEE International Electric Machines \& Drives Conference, Miami, Florida, USA, 21.-24 Mai 2017
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This article presents a study about cost-optimal machine designs fulfilling mandatory efficiency requirements. A case study for a rated power of 3kW and speed of 1500rpm is considered and the tradeoff material costs vs. efficiency is optimized. A comparison is made for induction machines and permanent magnet synchronous machines. As in the past the price for Neodymium-Iron-Boron magnets was volatile, two different scenarios regarding the material costs of the permanent magnets are evaluated. The cost-optimal machine designs for both topologies are further analyzed regarding thermal indices, power density, and optimal ratios of geometric dimensions. The results shall provide valuable insights and serve as a guidance for both people from academia and industry involved in the process of future machine design.