并列转子混合励磁同步发电机电感参数研究
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摘要
电感参数计算的准确性直接影响同步发电机的输出性能。本文给出一种并列转子无刷混合励磁同步发电机,其永磁转子采用Halbach阵列磁体结构,电励磁转子采用隐极结构,两种转子同轴并列。针对该电机分别采用解析法、有限元法以及负载试验法对同步电感进行计算和测量。为提高计算的准确性,基于有限元法计算了永磁转子和电励磁转子之间的不锈钢定子铁心漏抗。研究结果表明:相对于试验测量结果,有限元法的计算误差为-4.48%,解析法计算误差为-12.02%,有限元法具有较高的计算精度。
The accuracy of inductance parameter calculation directly affects the output performance of synchronous generator. In this paper, a hybrid excitation synchronous generator with parallel rotor structure is presented, which containts the permanent magnet rotor with Halbach structure and the electric excitation rotor with non-salient pole structure. These two kinds of rotor are coaxially parallel. The synchronous inductance is calculated by the analytical method and the finite element method, and measured by the load experiment. The stainless steel stator core leakage reactance between the permanent magnet rotor and the electric excitation rotor is calculated based on the finite element method in order to improve the accuracy of the calculation. The results show that the calculation error of the finite element method is-4.48% and the calculation error of the analytical method is-12.02% in comparison with the experimental measurement results, so the finite element method has a higher calculation accuracy.
The accuracy of inductance parameter calculation directly affects the output performance of synchronous generator. In this paper, a hybrid excitation synchronous generator with parallel rotor structure is presented, which containts the permanent magnet rotor with Halbach structure and the electric excitation rotor with non-salient pole structure. These two kinds of rotor are coaxially parallel. The synchronous inductance is calculated by the analytical method and the finite element method, and measured by the load experiment. The stainless steel stator core leakage reactance between the permanent magnet rotor and the electric excitation rotor is calculated based on the finite element method in order to improve the accuracy of the calculation. The results show that the calculation error of the finite element method is-4.48% and the calculation error of the analytical method is-12.02% in comparison with the experimental measurement results, so the finite element method has a higher calculation accuracy.
引文
[1]夏永洪,杨玉文,徐波,刘俊波.谐波励磁的混合励磁发电机比较与分析[J].电机与控制学报,2016, 20(9):61-66.
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[3] F. Giulii Capponi, G. De Donato, F. Caricchi.Axial-Flux Hybrid Excitation Synchronous Machine:Analysis, Design and Experimental Evaluation[C]. Energy Conversion Congress and Exposition(ECCE), Raleigh, USA, 2012.
[4]戴冀,张卓然,沐杨,刘业.转子磁分路混合励磁同步电机电枢反应磁场与电感特性研究[J].电工技术学报, 2015, 30(12):276-283.
[5] Jacek F. Gieras. Permanent magnet motor technology design and application[M]. Boca Rotan:CRC PRESS, 2010:180.
[6]陈世坤.电机设计[M].机械工业出版社, 1992.
[7]唐任远.现代永磁电机理论与设计[M].机械工业出版社, 1997.
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[2]林楠,王东,魏锟,张庆湖,易新强.新型混合励磁同步电机的数学模型与等效分析[J].电工技术学报, 2017, 32(3):149-156.
[3] F. Giulii Capponi, G. De Donato, F. Caricchi.Axial-Flux Hybrid Excitation Synchronous Machine:Analysis, Design and Experimental Evaluation[C]. Energy Conversion Congress and Exposition(ECCE), Raleigh, USA, 2012.
[4]戴冀,张卓然,沐杨,刘业.转子磁分路混合励磁同步电机电枢反应磁场与电感特性研究[J].电工技术学报, 2015, 30(12):276-283.
[5] Jacek F. Gieras. Permanent magnet motor technology design and application[M]. Boca Rotan:CRC PRESS, 2010:180.
[6]陈世坤.电机设计[M].机械工业出版社, 1992.
[7]唐任远.现代永磁电机理论与设计[M].机械工业出版社, 1997.
[8]汤蕴璆,史乃,等.电机学[M].西安交通大学出版社, 1993.