Affiliations: [a] College of Energy and Electrical Engineering, Hohai University, Nanjing, Jiangsu, China | [b] College of Mechanical and Electronic Engineering, China University of Petroleum (Huadong), Qingdao, Shandong, China
Correspondence:
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Corresponding author: Jing Liu, College of Energy and Electrical Engineering, Hohai University, Nanjing, Jiangsu, China; College of Mechanical and Electronic Engineering, China University of Petroleum (Huadong), Qingdao, Shandong, China. E-mail:jingliu2002@upc.edu.cn
Abstract: This paper proposes a maglev device for a vertical
hydro-turbine to replace the thrust-bearing. The structure of the device is
given. For the given mechanical structure, a design and optimization method
is put forward and the process is provided. The dimension parameters are
optimized to make the best use of material for bigger force density and
better control performance. The ideal common linear model is built and the
nonlinear programming method is used to decide the primary size parameters.
The results are inaccurate tested by finite element analysis (FEA) because
the model is rough. A more accurate reluctance network (RN) model is set up
and the PSO method is applied to get the optimal point. The results from the
two models are compared. The feasibility and validity of the latter method
is verified.
Keywords: Maglev device, dimension, optimization, reluctance network, force density
