电磁轴承用磁通控制型功率放大器力增益的研究

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Abstract The force gain of the proposed flux-controlled power amplifier based on flux observer is studied theoretically and experimentally. First, the structure and principle of flux-controlled power amplifier based on flux observer is introduced briefly, and the mathematical model of force gain is derived by solving the state equation of flux-controlled power amplifier. Then, theoretical analysis, finite element analysis and the actual measurements in an electromagnetic force measurement device is carried on for the force gain, and the results of theoretical analysis, finite element analysis and the actual measurements is compared. By the parameter identification method, the model of the force gain is revised and the relationships between the correction factor and air gap are given when the bias flux are 0.7T and 0.5T. Due to the model of force gain is obtained by linearization near the operating point, so the changes of operating point have a greater effect on the accuracy of the model. Finally, the relationship among the beam position, the force gain theoretical value and the finite element method value is given, when the operating point is set at the midpoint of the air gap.

Key words： Active magnetic bearings power amplifier flux control flux observer force gain

Received: 04 March 2010 Published: 19 March 2014

PACS:

TN722

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	Zhou Dan
	Zhu Changsheng
	Wang Ding

Cite this article:

Zhou Dan,Zhu Changsheng,Wang Ding. Force Gain of a Flux Control Power Amplifier for Active Magnetic Bearings[J]. Transactions of China Electrotechnical Society, 2012, 27(1): 188-195.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2012/V27/I1/188

[1] 施韦策G, 布鲁勒H, 特拉克斯勒A. 主动磁轴承基础、性能及应用[M]. 北京: 新时代出版社, 1997.
[2] Gerhard Schwertzer, Eric H. Maslen. Magnetic bearings theory, design, and application to rotating machinery[M]. New York: Springer Dordrecht Heidelberg London New York, 2009: 48-51.
[3] Li Lichuan. Linearizing magnetic bearing actuators by constant current sum, constant voltage sum, and constant flux sum[J]. IEEE Transactions on Magnetics, 1999, 35(1): 528-535.
[4] Marcinkiewicz. Flux feedback control system: United States Patent, 6731083B2[P]. 2004-04-04. http: //www. patentstorm. us/patents/6731083. html.
[5] Keith F J. Implicit flux feedback for magnetic bearings[D]. Virginia: University of Virginia, 1993.
[6] Groom, Nelson J. A magnetic bearng control approach using flux feedback[C]. NASA TM-100672, March 1975.
[7] 谷会东, 赵鸿宾, 赵雷. 电磁轴承功率放大器参数设计[J]. 机械工程学报, 2006, 42(2): 208-211.
Gu Huidong, Zhao Hongbin, Zhao Lei. Parameter design of active magnetic bearing’s power amplifier[J]. Chinese Journal of Mechanical Engineering, 2006, 42(2): 208-211.
[8] 张德魁, 赵雷, 赵鸿宾. 电流响应速度及力响应速度对磁轴承系统性能的影响[J]. 清华大学学报: 自然科学版, 2001, 41(6): 23-26.
Zhang Dekui, Zhao Lei, Zhao Hongbin. Effect of current response rate and force response rate on performance of magnetic bearing systems[J]. Tsinghua University: Science & Technology, 2001, 41(6): 23-26.
[9] 刘淑琴, 虞烈, 谢友柏. 电磁轴承驱动级电压与电流对转速和控制精度影响的研究[J]. 机械工程学报, 1999, 35(3): 101-104.
Liu Shuqin, Yu Lie, Xie Youbai. Research of influence of voltage and current of driving amplifier on the rotating speed and control precision for magnetic bearing[J]. Chinese Journal of Mechanical Engineering, 1999, 35(3): 101-104.
[10] 李旗. 电磁轴承功放结构对系统性能的影响[J]. 西安理工大学学报, 2004, 20(2): 215-218.
Li Qi. The influences of am b power amplifier structure upon system properties[J]. Journal of Xi’an University of Technology, 2004, 20(2): 215-218.
[11] Imlach J, Kasarda M E F, Balaji P A. Enhancements to AMB force measurement procedures for application to a rocket thrust measurement system[C]. International Gas Turbine & Aeroengine Congress and Exhibition, Munich, 2000.
[12] Matti Antila, Erkki Lantto, Antero Arkkio. Determination of forces and linearized parameters of radial active magnetic bearings by finite element technique[J]. IEEE Transactions on Magnetics, 1998, 34(3): 684-694.
[13] Josiah Knight, Edwad McCaul, Zule Xia. Measurement and calculation of forces in a magnetic journal bearing actuator[J]. NASA Workshop On Aerospace Applications of Magnetic Suspension Langley Research Center, 1990.
[14] 郭亮, 陈本永. 精密磁悬浮工作平台的力特性分析[J]. 中国电机工程学报, 2008, 28(21): 118-122.
Guo Liang, Chen Benyong. A study on force characteristics of precision magnetic levitation stage[J]. Proceedings of the CSEE, 2008, 28(21): 118-122.
[15] 周丹, 祝长生. 基于磁通观测器的主动电磁轴承用功率放大器[J]. 中国电机工程学报, 2009, 29(30): 90-97.
Zhou dan, Zhu Changsheng. Power amplifier for active magnetic bearings based on flux observer [J]. Proceedings of the CSEE, 2009, 29(30): 90-97.
[16] 冯江华, 许峻峰. 基于定子磁链自适应观测的永磁同步电机直接转矩控制系统[J]. 中国电机工程学报, 2006, 26(12): 122-127.
Feng Jianghua, Xu Junfeng. Permanent magnet synchronous machines direct torque control system based on adaptive stator flux observer [J]. Proceedings of the CSEE, 2006, 26(12): 122-127.
[17] 金孟加, 邱建琪, 史涔溦, 等. 基于新型定子磁链观测器的直接转矩控制[J]. 中国电机工程学报, 2005, 25(24): 139-143.
Jin Mengjia, Qiu Jianqi, Shi Cenwei, et al. A novel stator flux estimator for direct torque controlled magnet synchronous motor drives [J]. Proceedings of the CSEE, 2005, 25(24): 139-143.
[18] 邓歆. 磁通观测器分析设计与实用技术研究[D]. 武汉: 华中科技大学, 2006.
Deng An. The design and practical application of flux observer [D]. Wuhan: Huazhong University of Science &Technology, 2006.