|
|
Direct torque control and direct suspension force control of bearingless permanent magnetic slice motor |
Zhu Huangqiu, Gu Yingyue |
School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China |
|
|
Abstract Solving the complicated problem of precise decoupling, the vector control strategy also brings a large amount of calculations to the control system. Therefore a novel direct torque and direct suspension force control strategy of a bearingless permanent magnetic slice motor were proposed. On the basis of mathematic model, the theory and method of direct torque control of traditional PMSM motor were applied to the torque control of BPMSM. The direct torque control subsystem was constructed. According to similarities between torque windings and suspension force windings, the thought of DTC was applied to the suspension force control subsystem, then the direct suspension force control subsystem was constructed. With the integration of the space vector pulse width modulation, a novelty double SVPWM direct control system of the torque and suspension force for the BPMSM was realized. The relevant control algorithm was presented. The control system was simulated with Matalab/Simulink, and the results showed that the application of direct control strategy simplified the control algorithm, restrained the torque ripples,achieved better static and dynamic performance.
|
Received: 05 July 2014
|
|
|
|
[1]Bösch P, Barletta N. High power bearingless slice motor(3-4kW)for bearingless canned pumps [C]//Proceedings of the 9th International Symposiumon on Magnetic Bearings.Kentucky,USA:Kentucky Unversity, 2004: 1466-1471.[2]Wolfgang G, Wolfgang B, Wolfgang A. Novel bearingless slice motor design with four concentrated coils featuring a unique operational behavior[C]//Proceedings of the 2011-14th European Conference on Power Electronics and Applications.Piscataway:IEEE, 2011: 1-10.[3]Asama J, Hamasaki Y, Oiwa T. A novel concept of a single-drive bearingless motor [J]. IEEE Transactions on Industry Applications, 2011, 47(4): 1700-1706.[4]Gruber W, Briewasser W, Rothbock M, et al. Bearingless slice motor concepts without permanent magnets in the rotor [C]//Proceedings of the 2013 IEEE International Conference on Industrial Technology.Piscataway:IEEE, 2013: 259-265.[5]朱熀秋,单龙.无轴承无刷直流电机悬浮力新型控制策略[J]. 江苏大学学报: 自然科学版,2015,36(2): 209 - 214. Zhu Huangqiu,Shan Long. A new control method of suspension force for bearingless brushless DC motor[J]. Journal of Jiangsu University: Natural Science Edition, 2015,36(2): 209-214.(in Chinese)[6]朱熀秋, 付向东,左文全, 等. 基于模块化的无轴承永磁同步电机控制软件设计[J]. 江苏大学学报: 自然科学版,2011,32(6): 683-688. Zhu Huangqiu, Fu Xiangdong, Zuo Wenquan, et al. Design of control system software for bearingless permanent magnet synchronous motor based on modularization[J]. Journal of Jiangsu University: Natural Science Edition, 2011,32(6): 683 - 688.(in Chinese)[7]左文全. 无轴承永磁薄片电动机悬浮力模型及数字控制研究[D].镇江:江苏大学电气信息工程学院,2012.[8]朱通, 朱熀秋, 孙永波, 等. 无轴承永磁薄片电动机实验平台及驱动系统设计[C]//第26届中国控制会议.2007:395-399.[9]陈伯时. 矢量控制与直接转矩控制的理论基础和应用特色[J]. 电力电子, 2004, 2(1): 5-9. Chen Boshi. Theoretical basis and application features of vector control and direct torque control systems[J]. Power Electronics, 2004, 2(1):5-9.(in Chinese)[10]胡维超.无轴承同步磁阻电动机直接转矩与径向悬浮力直接控制研究[D].镇江:江苏大学电气信息工程学院,2012.[11]Pan Wei, Xu Bo, Sun Xiaodong, et al. Direct torque and suspension force control for bearingless permanent magnet synchronous motors [C]//Proceedings of the 30th Chinese Control Conference. Yantai, China: 2011: 3683-3687.[12]Ambrozic V, Buja G S, Menis R. Band-constrained technique for direct torque control of induction motor[J]. IEEE Transactions on Industry Applications, 2004, 51(4):776-784.[13]Singh J, Singh B, Singh S P, et al. Investigation of performance parameters of PMSM drives using DTC-SVPWM technique[C]//Proceedings of 2012 Students Conference on Engineering and Systems.Piscataway:IEEE, 2012: 1-6.[14]左文全, 吕艳博, 付向东, 等. 无轴承永磁薄片电机径向悬浮力精确数学建模[J]. 中国电动机工程学报, 2012, 32(3): 103-110. Zuo Wenquan, Lü Yanbo, Fu Xiangdong, et al. Accurate mathematical modeling of radial suspension force on bearingless permanent magnet slice motors[J]. Procee-dings of the CSEE, 2012, 32(3): 103-110.(in Chinese)[15]Li Qinan, Boesch P, Haefliger M, et al. Basic characteristics of a 4 kW permanent-magnet type bearingless slice motor for centrifugal pump system [C]//Procee-dings of International Conference on Electrical Machines and Systems. Wuhan[s.n.], 2008: 3037-3042.[16]Zhu Huangqiu, Tan Er, Wang Chengbo, et al. Direct torque and direct suspension force control of bearingless permanent magnet synchronous motor[C]//Proceedings of 22th Chinese Control and Decison Conference.Pisca-taway:IEEE, 2010: 2411-2415. |
|
|
|