| 一种混合励磁同步发电机的气隙磁密分析及其电压谐波抑制 |
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| 引用本文： | 宁银行,鲁为华,赵朝会,刘闯.一种混合励磁同步发电机的气隙磁密分析及其电压谐波抑制[J].航空动力学报,2019,46(1):15-20. |
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| 作者姓名： | 宁银行 鲁为华 赵朝会 刘闯 |
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| 作者单位： | 上海电机学院 电气学院,上海201306,上海昂电电机有限公司,上海201111,上海电机学院 电气学院,上海201306,南京航空航天大学 自动化学院,江苏 南京210016 |
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| 基金项目： | 国家自然科学基金项目(50977044,51377076)；江苏省自然科学基金项目(BK20151574) |
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| 摘 要： | 为改善混合励磁同步发电机的气隙磁密分布,采用三段式气隙长度对转子进行了优化,对比了优化前后的气隙磁密。为抑制电压谐波,在完成转子结构优化的基础上,进一步采用短距、分布电枢绕组以及定子斜槽等措施。最后对样机电压波形进行了实测和质量分析,结果表明:采用三段式气隙长度与定子斜槽相结合,可将电压波形的总谐波失真(THD)抑制在5%的范围内。此外,探讨了偏心距法在切向/径向混合励磁电机中应用的可行性,并对比了分别采用偏心距法和三段式气隙长度法时的气隙磁密。
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| 关 键 词： | 同步发电机 混合励磁电机 气隙磁密 电压谐波抑制 |
| 收稿时间： | 2018/7/2 0:00:00 |
Analysis on the AirGap Flux Density and Voltage Harmonic Suppression of aHybrid Excitation Synchronous Generator |
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| NING Yinhang,LU Weihu,ZHAO Chaohui and LIU Chuang.Analysis on the AirGap Flux Density and Voltage Harmonic Suppression of aHybrid Excitation Synchronous Generator[J].Journal of Aerospace Power,2019,46(1):15-20. |
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| Authors: | NING Yinhang LU Weihu ZHAO Chaohui and LIU Chuang |
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| Institution: | School of Electrical Engineering, Shanghai Dianji University, Shanghai 201306, China,Shanghai Angdian Motor Co., Ltd., Shanghai 201111, China,School of Electrical Engineering, Shanghai Dianji University, Shanghai 201306, China and College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | In order to improve the airgap magnetic field distribution of hybrid excitation synchronous generator, a method named threelevel airgap length was introduced to optimize the rotor structure. The airgap flux densities, before and after optimization based on this method were analyzed and compared. After the rotor structure was optimized, the armature winding scheme with short pitch, distributed arrangement and skewed slots was adopted for a better voltage waveform quality. Then, prototype was tested to analyze its harmonic components of phase voltage with a power analyzer. Experimental results demonstrated that the total harmonic distortion (THD) of voltage could be restrained to the acceptable range(less than 5%) based on the combination of the threelevel airgap length and the stator skewed slots. Finally, feasibility of the eccentricdistance method used in the tangential/radial hybrid excitation synchronous generator was discussed, and the calculation results of airgap flux density were compared for the eccentricdistance method and the threelevel airgap length method. |
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| Keywords: | synchronous generator hybrid excitation motor airgap flux density voltage harmonics suppression |
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