Abstract：In consideration of lower power density of electric excitation generator and some difficulties in magnetic field regulation of permanent magnet generator, a novel dual-direction hybrid excitation brushless dc generator (HE-BLDCG) is proposed in this paper. Firstly, the architecture and winding connection of the dual-direction hybrid excitation brushless dc generator were presented and the magnetic field regulation principle were described. To predict the electromagnetic performance more accurately, 3D-finite element analysis (3D-FEA) magnetic and transient models of the machine were built by JMAG-Designer. Magnetic finite element analysis was performed to achieve the magnetic field distributions and air gap flux density under different the electrical MMFs, and no-load characteristics, voltage characteristics and regulate characteristics of the machine were obtained based on the transient finite element analysis. In addition, a 10kW, 900VDC dual three-phase prototype generator was tested. The measured results agree well with the 3D-FEA results and verify the reasonable structure of the proposed generator. The air gap flux can be effectively regulated with DC field current. The proposed generator is suitable for the high voltage dc power supply system of vehicle.
[1] 朱孝勇, 程明, 赵文祥, 等. 混合励磁电机技术综述与发展展望[J]. 电工技术学报, 2008, 23(1): 30-39. Zhu Xiaoyong, Cheng Ming, Zhao Wenxiang, et al.An overview of hybrid excited electric machine capable of field control[J]. Transactions of China Electrotechnical Society, 2008, 23(1): 30-39. [2] Yıldırız E, Önbilgin G.Comparative study of new axial field permanent magnet hybrid excitation machines[J]. IET Electric Power Applications, 2017, 11(7): 1347-1355. [3] 乔东伟, 王秀和, 朱常青. 新型混合励磁无刷爪极发电机的磁场调节特性分析及试验研究[J]. 中国电机工程学报, 2013, 33(9): 115-121. Qiao Dongwei, Wang Xiuhe, Zhu Changqing.Investigation of flux regulation performance and experimental validation of novel hybrid excitation brushless claw-pole alternators[J]. Proceedings of the CSEE, 2013, 33(9): 115-121. [4] 耿伟伟, 张卓然, 于立, 等. 新型并列式混合励磁无刷直流电机结构原理及其磁场调节特性[J]. 电工技术学报, 2013, 28(11): 131-137. Geng Weiwei, Zhang Zhuoran, Yu Li, et al.Operation principle and flux regulation characteri- stics of a new parallel hybrid excitation blushless DC machine[J]. Transactions of China Electrical Society, 2013, 28(11): 131-137. [5] Li Guangjin, Zhu Ziqiang, Geraint Jewell.Perfor- mance investigation of hybrid excited switched flux permanent magnet machines using frozen permeability method[J]. IET Electric Power Applications, 2015, 9(9): 586-594. [6] Chen Zhihui, Wang Bo, Chen Zhe.Comparison of flux regulation ability of the hybrid excitation doubly salient machines[J]. IEEE Transactions on Industrial Electronics, 2014, 61(7): 3155-3166. [7] Jia Shaofeng, Qu Ronghai, Kong Wubin, et al.Hybrid excitation stator PM Vernier machines with novel DC-biased sinusoidal armature current[J]. IEEE Transactions on Industry Applications, 2018, 54(2): 1339-1348. [8] Zhu Shushu, Liu Chuang, Ning Yinhang, et al.Theoretical and experimental analyses of a hybrid excitation synchronous generator with integrated brushless excitation[J]. IET Electric Power Appli- cations, 2016, 10(4): 258-267. [9] 林楠, 王东, 魏锟, 等. 高速混合励磁发电机的结构及调压性能[J]. 电工技术学报, 2016, 31(7): 19-25. Lin Nan, Wang Dong, Wei Kun, et al.Structure and voltage regulation performance of high speed hybrid excitation synchronous generators[J]. Transactions of China Electrotechnical Society, 2016, 31(7): 19-25. [10] 朱姝姝, 刘闯, 宁银行, 等. 一种切向/径向混合励磁无刷同步发电机系统[J]. 电工技术学报, 2013, 28(3): 127-133. Zhu Shushu, Liu Chuang, Ning Yinhang, et al.A generation system based on tangential/radial hybrid excitation synchronous generator[J]. Transactions of China Electrotechnical Society, 2013, 28(3): 127-133. [11] Zhang Zhuoran, Yan Yangguang, Yang Shanshui.Principle of operation and feature investigation of a new topology of hybrid excitation synchronous machine[J]. IEEE Transactions on Magnetics, 2008, 44(9): 2174-2180. [12] Hlioui S, Vido L, Amara Y, et al.Magnetic equivalent circuit model of a hybrid excitation synchronous machine[J]. The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 2008, 27(5): 1000-1015. [13] Rebhi R, Ibala A, Masmoudi A.MEC-based sizing of a hybrid-excited claw pole alternator[J]. IEEE Transactions on Industry Applications, 2015, 51(1): 211-223. [14] 张晓祥, 张卓然, 刘业, 等. 双端励磁内置转子磁分路混合励磁电机设计与转子强度分析[J]. 电工技术学报, 2018, 33(2): 245-254. Zhang Xiaoxiang, Zhang Zhuoran, Liu Ye, et al.Design and rotor strength analysis of a hybrid excitation synchronous machine with dual-direction built-in field windings[J]. Transactions of China Electrical Society, 2018, 33(2): 245-254. [15] Mbayed R, Salloum G, Monmasson E, et al.Hybrid excitation synchronous machine finite simulation model based on experimental measurements[J]. IET Electric Power Applications, 2016, 4(10): 304-310.
2019, Vol. 34 
