Analysis for Impacts of Internal Impedance on the Load Characteristic of a Permanent Magnet Synchronous Generator

Abstract:

The load characteristic analysis of permanent magnet synchronous generator is presented. An internal impedance mathematic model of the generator was built with phasor analysis method for analyzing the relationship between exterior voltage characteristic or voltage regulation rate, active power and armature reactance. The research results demonstrated that the internal impedance of generator has both current and power factor angle negative feedback characteristic, which makes the voltage regulation rate be improved to a certain extent and the improved effect lying on both the direct-axis armature reactance under condition of an inductive load and the quadrature-axis armature reactance under resistive load. Additionally, an optimal range of the armature reactance being of less voltage regulation rate was determined according to numerical calculation and analysis. An experimental result based on the experimental measurement and data analysis of exterior voltage characteristic corresponds to the theoretical calculation demonstrated the correctness of the research model based upon the armature reaction analysis. Those can provide the theoretically guidance to the electromagnetic design of permanent magnet generator.

• Periodical: Advanced Materials Research (Volumes 732-733)
• Pages: 1135-1141
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.732-733.1135
• Online since: August 2013
• Authors: Yue Shen*, Ling Tan Zhang, Li Min Sheng, Lin Li
• Keywords: Armature Reactance, Internal Impedance, Permananent Magnet Synchronous Generator, Phasor Analysis, Power Factor

References

[1] Shikun Chen: Machine Design (2nd Edition) (China Machine Press, Beijing 2004). In Chinese.

[2] Longnian Li, Baoling Wang and Ruhuang Zhou: Electric Machine Design (Tsinghua University Press, Beijing 1992). In Chinese.

[3] Fei Zhang, Renyuan Tang, Lixiang Chen, et al: Transactions of China Electrotechnical Society. (2006. 21), pp.7-10. In Chinese.

[4] Qiansheng Hu, Minqiang Hu: Electric Machinery (China Electric Power Press, Beijing 2007). In Chinese.

[5] Yiping Dou, Haizhen Chen and Yangguang Yan: Transactions of China Electrotechnical Society. (1999. 14), pp.5-8. In Chinese.

[6] Yiping Dou, Haizhen Chen: Journal of Nanjing University of Aeronautics & Astronautics. (1999. 31), pp.312-317. In Chinese.

[7] Ming Meng, Zhenlin Xu and Jiajun Wang: Transactions of China Electrotechnical Society. (2004. 19), pp.15-19. In Chinese.

[8] Ming Meng, Zhenlin Xu and Jiajun Wang: Journal of Tianjin University. (2004. 37), pp.531-534. In Chinese.

[9] Ming Meng, Zhenlin Xu: Advanced Technology of Electrical Engineering and Energy. (2004. 23), pp.47-50. In Chinese.

[10] Guoliang Wang: Electric Machinery (China Machine Press, Beijing 2005). In Chinese.

[11] A.E. Fitzgerald, Charles Kingsley and S.D. Umans: Electric Machinery (6th Edition) (Tsinghua University Press, Beijing 2003). In Chinese.

[12] Jingwei Wei: Micromotors Servo Technique. (2003. 36), pp.11-13. In Chinese.