Design Optimization of Electrodynamic Structure of Permanent Magnet Piston Mechanical Electric Engine

Yun Sun, Hongxin Zhang, Zhen Liang and Jian Yang
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Yun Sun: College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 260071, China
Hongxin Zhang: College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 260071, China
Zhen Liang: College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 260071, China
Jian Yang: College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 260071, China

Energies, 2021, vol. 14, issue 19, 1-20

Abstract: To meet the demand of multiple power requirements, and enhance power utilization, a new type of dual-element electricity unit is designed in this study, which is a permanent magnet piston mechanical electric engine. Based on the analysis method of traditional internal combustion engines and linear generators, the working principle of the engine and the magnetic field distribution in the electrodynamic structure are analyzed, the machine dynamics model and electrodynamics model of the engine are established, then the theoretical evaluation is additionally established using finite elements. Based on this, an optimization model is constructed with the electrodynamic shape dimension as the optimization variable, with the intention of growing the output power. The optimization of the engine electrodynamic shape is executed via the use of the finite aspect approach and the NLPQL optimization algorithm integrated. The results show that the optimized engine output electricity expanded to 8.40 w, which is 18.81% greater than before optimization. An experimental prototype is developed, and the output voltage of the prototype is measured to verify the precept and overall performance of the new structure.

Keywords: engine; linear motor; mechanical-electric engine; integrated design; optimization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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