Abstract
This chapter studies the parameter optimization and back iron influence of tubular linear machines with dual Halbach array. The force output of a single phase permanent magnet tubular linear machine is obtained analytically in Chap. 3. Based on the analytical force model, penalty method and scanning method are employed to conduct parameter optimization to maximize the force output for a given machine volume. Then the influence of structure parameters on force output and force ripple of a three-phase linear machine has been investigated to select optimized structure parameters. Ferromagnetic materials affect magnetic field distribution and force output of electromagnetic machines significantly. Numerical method in Ansoft environment is employed to compute the magnetic field and force output of linear machines with various types of back iron patterns including internal back iron, external back iron, double-sided back iron, and without back iron.
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Yan, L., Zhang, L., Peng, J., Zhang, L., Jiao, Z. (2017). Machine Design and Optimization. In: Electromagnetic Linear Machines with Dual Halbach Array. Springer, Singapore. https://doi.org/10.1007/978-981-10-2309-5_5
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DOI: https://doi.org/10.1007/978-981-10-2309-5_5
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