Open AccessInvestigation of a low‐power, double‐sided switched reluctance generator for wave energy conversion
Author(s) -
Pan Jianfei,
Zou Yu,
Cao Guangzhong
Publication year - 2013
Publication title -
iet renewable power generation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.005
H-Index - 76
ISSN - 1752-1424
DOI - 10.1049/iet-rpg.2011.0274
Subject(s) - switched reluctance motor , generator (circuit theory) , electrical engineering , power (physics) , energy transformation , automotive engineering , computer science , physics , engineering , quantum mechanics , rotor (electric) , thermodynamics
In this paper, a low‐power, direct‐drive, double‐sided linear switched reluctance generator (LSRG) is designed and constructed as one of the components of generator matrix for wave power utilizations by direct energy conversion. This machine has the characteristics of simple construction, mechanical robustness, and maintenance free. Following the theoretical background of linear power generation, characteristic investigation is performed by finite element analysis, which shows that each phase can be controlled individually and normal forces can be approximately counteracted from the double‐sided structure. Both preliminary power simulation and experimental results show that there is an optimized generation region for turn‐on and turn‐off position control strategy. The closed loop test based on Pulse Width Modulation (PWM) of current waveforms also demonstrate that for a wide range of wave speed excitations, PWM scheme should be combined with other control strategies for uniform current level regulations.