Design and FE analysis of surface mounted permanent magnet motor/generator for high-speed modular flywheel energy storage systems

Parag Upadhyay, Ned Mohan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations

Abstract

Storage is an extremely important area of research and has the potential of furthering the integration of renewables in the grid. The concept proposed here is to design a ceramic-based surface-mounted permanent-magnet (PM) motor/generator for the modular flywheel storage units those are distributed to allow local generation to be used for consumption locally, thus avoiding losses on the transmission and distribution grid as much as possible. Use of ceramic magnets is advantageous because of their higher operating temperatures, easy availability at lower cost, and lower iron losses owing to lower operating flux densities. A 2.5 kW, 24,000 rpm, surface-mounted PM Motor suitable for a 10-kWh storage system is designed and then analyzed using the Finite Element Method. The designed motor with the airgap flux density of 0.3 T results in over 98 percent efficiency, negligible rotor losses, and very low torque ripple of 6.25%.

Original languageEnglish (US)
Title of host publication2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009
Pages3630-3633
Number of pages4
DOIs
StatePublished - 2009
Event2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009 - San Jose, CA, United States
Duration: Sep 20 2009Sep 24 2009

Publication series

Name2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009

Other

Other2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009
Country/TerritoryUnited States
CitySan Jose, CA
Period9/20/099/24/09

Keywords

  • Energy storage
  • Flywheel storage
  • Generator
  • High speed modular storage
  • Motor
  • PM motor
  • Permanent magnet

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