Hybrid technique for dynamic modeling of the performance of linear generators with skewed mounted permanent magnets

Nikolaos M. Kimoulakis, Panagiotis Kakosimos, Antonios G. Kladas

Research output: Contribution to journalArticle

12 Citations (Scopus)


This paper proposes a specific hybrid 2-D simulation model of magnetic field distribution accounting for magnet skew in the case of a linear permanent magnet generator (LPMG). The proposed methodology is based on a hybrid numerical technique implementing standard finite elements for the analysis of stator and rotor parts combined with an analytical solution in the Cartesian coordinate system in the air-gap area specified for magnet skew consideration. The developed technique has been incorporated in a coupled field-circuit model for the overall simulation of the performance of an electrical generating unit for sea-wave energy extraction using LPMG. The derived model has been implemented in the control subsystem aiming to tune the movement of the wave energy absorber to the system resonance frequency enabling to optimize its performance. Simulation results have been validated by measurements on a sea-wave energy extraction demonstration plant.

Original languageEnglish
Article number5560839
Pages (from-to)906-909
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number5
Publication statusPublished - 1 May 2011
Externally publishedYes



  • Hybrid numerical models
  • linear permanent magnet generator (LPMG)
  • magnet skew
  • sea-wave applications

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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