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JIANG Siyuan,ZHOU Bo,WANG Kaimiao,FENG Xiaobao.Effects of Ambient Temperature on Output Characteristics of Doubly Salient Electro-magnetic Generator[J].JOURNAL OF POWER SUPPLY,2021,19(2):167-175
Effects of Ambient Temperature on Output Characteristics of Doubly Salient Electro-magnetic Generator
Received:June 04, 2019  Revised:September 16, 2020
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DOI:10.13234/j.issn.2095-2805.2021.2.167
Keywords:doubly salient electro-magnetic generator (DSEG)  electromagnetic field  ambient temperature  characteristic analysis
Fund Project:The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)
           
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JIANG Siyuan Jiangsu Key Laboratory of New Energy Generation and Power Conversion, Nanjing University of Aeronautics&Astronautics, Nanjing , China
ZHOU Bo Jiangsu Key Laboratory of New Energy Generation and Power Conversion, Nanjing University of Aeronautics&Astronautics, Nanjing , China zhoubo@nuaa.edu.cn
WANG Kaimiao Jiangsu Key Laboratory of New Energy Generation and Power Conversion, Nanjing University of Aeronautics&Astronautics, Nanjing , China
FENG Xiaobao Jiangsu Key Laboratory of New Energy Generation and Power Conversion, Nanjing University of Aeronautics&Astronautics, Nanjing , China
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Abstract:
      Doubly salient electro-magnetic generator (DSEG) is a novel type of brushless DC generator with strong hi-gh-temperature operation capability. However, there is few research on its temperature characteristics. To provide a reliable theoretical basis for the design and application of DSEG, the power generation characteristics of DSEG at different ambient temperatures are studied in this paper. Using the equivalent magnetic circuit method and finite element method (FEM), the effects of temperature on the magnetic field and winding inductance of DSEG are analyzed with the combination of magnetic permeability curves of core material at different temperatures. Then, the load characteristics of DSEG at different temperatures are studied. By combining the core material and copper winding material at different temperatures, the effects of the change in winding resistance and that in core magnetic resistance due to temperature rise on the DSEG's external performance are studied, respectively. Finally, based on the dynamic temperature rise test and the static thermal test of DSEG, the temperature characteristic experiments were carried out. Through the comparative analysis of cold- and hot-state experimental results and simulation results, the theoretical analysis and simulations were verified. The conclusions in this paper are of guiding significance to the electro-magnetic design and engineering applications of DSEG.
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