Accurate Calculation of Iron Loss of High-Temperature and High-Speed Permanent Magnet Synchronous Generator under the Conditions of SVPWM Modulation

Liang Zhuo, Du Yang, Ruolan Sun, Lu Sun and Jibin Zou
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Liang Zhuo: Department of Electrical Engineering, Harbin Institute of Technology, Harbin 151001, China
Du Yang: Guizhou Aerospace Linquan Motor Co., National Engineering Research Center for Small and Special Precision Motors, Guiyang 550008, China
Ruolan Sun: Guizhou Aerospace Linquan Motor Co., National Engineering Research Center for Small and Special Precision Motors, Guiyang 550008, China
Lu Sun: Guizhou Aerospace Linquan Motor Co., National Engineering Research Center for Small and Special Precision Motors, Guiyang 550008, China
Jibin Zou: Department of Electrical Engineering, Harbin Institute of Technology, Harbin 151001, China

Energies, 2022, vol. 15, issue 7, 1-15

Abstract: The high-temperature and high-speed permanent magnet synchronous generator (HTHSPMSG) is the core component ensuring the efficient and safe operation of the high-speed aircraft power supply system. At present, the existing iron loss model fails to meet the requirements for the precise calculation of the iron loss of HTHSPMSG under high-temperature and high-frequency conditions. In this paper, a 40 kW, 18,000 rpm HTHSPMSG is used to study the accurate calculation of iron loss at an ambient temperature of 350 °C. Considering the influence of high temperature and high frequency on the loss and performance of electromagnetic materials, a test platform for the loss performance of the magnetic core materials is established. Then, according to the loss performance of the electromagnetic material, the corresponding iron loss coefficient is fitted by the variable coefficient iron loss separation model. In addition, the digital twin field-circuit co-simulation method is proposed to guarantee the accuracy of the iron loss calculation. Then, the influence of carrier frequencies and modulation ratios on the iron loss characteristics of the HTHSPMSG under the conditions of SVPWM modulation is studied. Lastly, the effectiveness of the proposed method is verified by the experimental results, which provide a reference for the accurate analysis of iron loss of the same type of HTHSPMSG.

Keywords: high speed; high temperature; iron loss; permanent magnet synchronous generator; SVPWM (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: 2022
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