An analytical formula for selecting the feeding voltage and frequency in a TORUS-type nonslotted axial flux permanent magnet machine design
| Autor: | Ahmad Darabi, Mohsen Assili, Reza Mirzahosseini |
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| Rok vydání: | 2019 |
| Předmět: |
General Computer Science
Control theory Magnet Mechanical efficiency Torus Electrical and Electronic Engineering Type (model theory) Engineering design process TORUS-type nonslotted axial flux permanent magnet (TORUS NS-AFPM) machine design algorithm performance characteristics feeding voltage optimum frequency Axial flux Power (physics) Mathematics Voltage |
| Zdroj: | Volume: 27, Issue: 3 2295-2308 Turkish Journal of Electrical Engineering and Computer Science |
| ISSN: | 1300-0632 1303-6203 |
| Popis: | Axial flux permanent magnet (AFPM) motors are usually controlled by drive; therefore, in the design of these machines the feeding voltage and frequency are completely independent parameters. Undoubtedly, the values of these parameters have significant effects on the performance characteristics of the machine. The main objective of this paper is to investigate the effects of these parameters on the efficiency of a double-sided TORUS-type nonslotted (TORUS NS) AFPM motor and propose a formula for selecting the optimal values of the feeding voltage and frequency at the beginning of the design process. To fulfill this goal, different machines with various speeds, powers, and feeding voltages are designed based on a proposed design algorithm. Then a formula for calculating machine efficiency is presented based on the frequency, number of pole pairs, output power, and feeding voltage of the machine. In order to confirm the validity of the proposed formula, several fabricated machines with different powers and speeds are selected as case studies. The efficiency of these machines is calculated using the proposed formula and is measured in the laboratory. Comparing the results confirms the excellent accuracy of the proposed formula. |
| Databáze: | OpenAIRE |
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