一种双定子型的磁悬浮开关磁阻双通道全周期发电机
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摘要
针对传统磁悬浮开关磁阻发电机中发电绕组与径向力绕组以及径向力绕组之间存在非线性强耦合的问题,该文研究一种新型的双定子磁悬浮开关磁阻双通道全周期发电机。该电机采用内–外双定子结构,内定子悬浮极上设置悬浮力绕组,外定子发电极上设置激励和发电绕组。在结合电机结构说明悬浮和全周期发电原理的基础上,利用磁通分布以及绕组磁链的有限元计算结果分析了悬浮与发电绕组之间以及悬浮力绕组之间的耦合程度,建立了系统的数学模型和运行策略。该发电机的悬浮极和发电极均可双通道运行,二者具有独立磁路,且悬浮力不受转子位置角影响,可连续发电并提高供电可靠性。有限元及实验结果验证了所提方案的正确性和有效性。
In order to conquer the serious nonlinear coupling problem among the generating windings and the two-freedom radial-force windings in traditional bearingless switched reluctance generators(BSRGs), a novel double-stator type bearingless switched reluctance dual-channel generator(DSBSRG) was proposed in this paper. This DSBSRG consists of two stators which we defined as the inner stator and the outer stator. The radial force windings are placed on the suspending poles of the inner stator, while the exciting windings and the generating windings are placed on the generating poles of the outer stator. After the basic structure characteristics of this DSBSRG was illustrated, its rotor suspending and full-period generating principles were described. Then the finite element method(FEM) analysis results of magnetic flux distribution and winding flux linkage were utilized to research the coupling extent among the generating winding and the two-freedom radial-force winding, to deduce the mathematical model, and to design the running strategy for the DSBSRG system. In this DSBSRG, the generating subsystem can realize the full-period generating function with high stability; the suspending poles and the generating poles have separate magnetic flux distribution paths, and can both operate in the dual-channel; and the radial force can be controlled without the affection of the rotor position angle. And FEM and experimental results validated this proposed method.
In order to conquer the serious nonlinear coupling problem among the generating windings and the two-freedom radial-force windings in traditional bearingless switched reluctance generators(BSRGs), a novel double-stator type bearingless switched reluctance dual-channel generator(DSBSRG) was proposed in this paper. This DSBSRG consists of two stators which we defined as the inner stator and the outer stator. The radial force windings are placed on the suspending poles of the inner stator, while the exciting windings and the generating windings are placed on the generating poles of the outer stator. After the basic structure characteristics of this DSBSRG was illustrated, its rotor suspending and full-period generating principles were described. Then the finite element method(FEM) analysis results of magnetic flux distribution and winding flux linkage were utilized to research the coupling extent among the generating winding and the two-freedom radial-force winding, to deduce the mathematical model, and to design the running strategy for the DSBSRG system. In this DSBSRG, the generating subsystem can realize the full-period generating function with high stability; the suspending poles and the generating poles have separate magnetic flux distribution paths, and can both operate in the dual-channel; and the radial force can be controlled without the affection of the rotor position angle. And FEM and experimental results validated this proposed method.
引文
[1]Takemoto M,Chiba A,Akagi H,et al.Radial force and torque of a bearingless switched reluctance motor operating in a region of magnetic saturation[J].IEEE Transactions on Industry Application,2004,40(1):103-112.
[2]Takemoto M,Chiba A.A method of determining the advanced angle of square-wave currents in a bearingless switched reluctance motor[J].IEEE Transactions on Industry Applications,2001,37(6):1702-1709.
[3]Cai Jun,Deng Zhiquan,Liu Zheyuan,et al.A new flux-linkage model for Bearingless switched reluctance motor[C]//Proceedings of 2009 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices.Chengdu,China:Journal of Electronic Science and Technology,Applied Superconductivity and Electrotechnology Research Center,2009:250-254.
[4]曹鑫,邓智泉,杨钢,等.无轴承开关磁阻电机麦克斯韦应力法数学模型[J].中国电机工程学报,2009,29(3):78-83.Cao Xin,Deng Zhiquan,Yang Gang,et al.Mathematical model of bearingless switched reluctance motors based on Maxwell stress tensor method[J].Proceedings of the CSEE,2009,29(3):78-83(in Chinese).
[5]杨艳,邓智泉,曹鑫,等.无轴承开关磁阻电机径向电磁力模型[J].电机与控制学报,2009,13(3):377-382.Yang Yan,Deng Zhiquan,Cao Xin,et al.Magnetic radial force of bearingless switched reluctance motors[J].Electric Machines and Control,2009,13(3):377-382(in Chinese).
[6]朱志莹,孙玉坤,黄永红.磁悬浮开关磁阻电机逆动力建模与控制[J].电机与控制学报,2011,15(3):74-79+85.Zhu Zhiying,Sun Yukun,Huang Yonghong.Inverse dynamics modeling and control for bearingless switched reluctance motor[J].Electric Machines and Control,2011,15(3):74-79+85(in Chinese).
[7]杨刚,邓智泉,曹鑫,等.无轴承开关磁阻电机平均悬浮力控制策略[J].航空学报,2009,30(3):505-511.Yang Gang,Deng Zhiquan,Cao Xin,et al.Control strategy of average levitated force of a Bearingless switched reluctance motor[J].ACTA Aeronautica ET Astronautica Sinica,2009,30(3):505-511(in Chinese).
[8]曹鑫,邓智泉,杨刚,等.一种无轴承开关磁阻电机独立控制策略[J].中国电机工程学报,2008,28(24):94-100.Cao Xin,Deng Zhiquan,Yang Gang,et al.An independent control scheme of Bearingless switched reluctance motors[J].Proceedings of the CSEE,2008,28(24):94-100(in Chinese).
[9]项倩雯,孙玉坤,张新华.磁悬浮开关磁阻电机建模与参数优化设计[J].电机与控制学报,2011,15(4):74-79.Xiang Qianwen,Sun Yukun,Zhang Xinhua.Modeling and parameters optimal design of bearingless switched reluctance motor[J].Electric Machines and Control,2011,15(4):74-79(in Chinese).
[10]范冬,杨艳,邓智泉,等.无轴承高速开关磁阻电机设计中的关键问题[J].电机与控制学报,2006,10(6):547-552.Fan Dong,Yang Yan,Deng Zhiquan,et al.The key technology on designing a high-speed bearingless switched reluctance motor[J].Electric Machines and Control,2006,10(6):547-552(in Chinese).
[11]Morrison C R.Bearingless switched reluctance motor:U.S.,6727618B1[P].2004-4-27.
[12]Morrison C R,Siebert M W,Ho E J.Electromagnetic forces in a hybrid magnetic-bearing switched-reluctance motor[J].IEEE Transactions on Magnetism,2008,44(12):4626-4638.
[13]Xu Zhenyao,Zhang Fengge,Lee D H,et al.Design and analysis of novel 12/14 hybrid pole type bearingless switched reluctance motor with short flux path[J].Journal of Electrical Engineering and Technology,2012,7(5):705-713.
[14]Lee D H,Wang H J,Ann J W.Modeling and control of novel bearingless switched reluctance motor[C]//2009IEEE Energy Conversion Congress and Exposition.San Jose,CA,United states:Electric Power Research Institute,2009:276-281.
[15]Chen L,Hofmann W.Speed regulation technique of one bearingless 8/6 switched reluctance motor with simpler single winding structure[J].IEEE Transactions on Industrial Electronics,2012,59(6):2592-2600.
[16]曹鑫,邓智泉,庄铮,等.三相串联励磁式无轴承开关磁阻发电机原理与实现[J].电工技术学报,2013,28(2):108-116.Cao Xin,Deng Zhiquan,Zhuang Zheng,et al.Principle and implementation of a bearingless switched reluctance generator with three adjacent excitation-windings connected in series[J].Transactions of China Electrotechnical Society,2013,28(2):108-116(in Chinese).
[17]周云红,孙玉坤,嵇小辅,等.一种新型的磁悬浮开关磁阻发电机[J].中国电机工程学报,2012,32(15):107-113.Zhou Yunhong,Sun Yukun,Ji Xiaofu,et al.A novel bearingless switched reluctance generator[J].Proceedings of the CSEE,2012,32(15):107-113(in Chinese).
[18]周云红,孙玉坤.一种双定子型磁悬浮开关磁阻起动/发电机的运行原理与实现[J].中国电机工程学报,2014,34(36):6458-6466.Zhou Yunhong,Sun Yukun.Principle and implementation of a double-stator bearingless switched reluctance starter/generator[J].Proceedings of the CSEE,2014,34(36):6458-6466(in Chinese).
[19]Wei P,Lee D H,Ahn J W.Design and analysis of double stator type bearingless switched reluctance motor[J].Transactions of the Korean Institute of Electrical Engineers,2011,60(4):746-752.
[20]杨柳,陈艳萍.求解非线性方程组的一种新的全局收敛的Levenberg-Marquardt算法[J].计算数学,2008,30(8):388-396.Yang Liu,Chen Yanping.A new globally convergent levenberg-marquardt method for solving nonlinear system of equations[J].Mathematic Numerica Sinica,2008,30(8):388-396(in Chinese).
[2]Takemoto M,Chiba A.A method of determining the advanced angle of square-wave currents in a bearingless switched reluctance motor[J].IEEE Transactions on Industry Applications,2001,37(6):1702-1709.
[3]Cai Jun,Deng Zhiquan,Liu Zheyuan,et al.A new flux-linkage model for Bearingless switched reluctance motor[C]//Proceedings of 2009 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices.Chengdu,China:Journal of Electronic Science and Technology,Applied Superconductivity and Electrotechnology Research Center,2009:250-254.
[4]曹鑫,邓智泉,杨钢,等.无轴承开关磁阻电机麦克斯韦应力法数学模型[J].中国电机工程学报,2009,29(3):78-83.Cao Xin,Deng Zhiquan,Yang Gang,et al.Mathematical model of bearingless switched reluctance motors based on Maxwell stress tensor method[J].Proceedings of the CSEE,2009,29(3):78-83(in Chinese).
[5]杨艳,邓智泉,曹鑫,等.无轴承开关磁阻电机径向电磁力模型[J].电机与控制学报,2009,13(3):377-382.Yang Yan,Deng Zhiquan,Cao Xin,et al.Magnetic radial force of bearingless switched reluctance motors[J].Electric Machines and Control,2009,13(3):377-382(in Chinese).
[6]朱志莹,孙玉坤,黄永红.磁悬浮开关磁阻电机逆动力建模与控制[J].电机与控制学报,2011,15(3):74-79+85.Zhu Zhiying,Sun Yukun,Huang Yonghong.Inverse dynamics modeling and control for bearingless switched reluctance motor[J].Electric Machines and Control,2011,15(3):74-79+85(in Chinese).
[7]杨刚,邓智泉,曹鑫,等.无轴承开关磁阻电机平均悬浮力控制策略[J].航空学报,2009,30(3):505-511.Yang Gang,Deng Zhiquan,Cao Xin,et al.Control strategy of average levitated force of a Bearingless switched reluctance motor[J].ACTA Aeronautica ET Astronautica Sinica,2009,30(3):505-511(in Chinese).
[8]曹鑫,邓智泉,杨刚,等.一种无轴承开关磁阻电机独立控制策略[J].中国电机工程学报,2008,28(24):94-100.Cao Xin,Deng Zhiquan,Yang Gang,et al.An independent control scheme of Bearingless switched reluctance motors[J].Proceedings of the CSEE,2008,28(24):94-100(in Chinese).
[9]项倩雯,孙玉坤,张新华.磁悬浮开关磁阻电机建模与参数优化设计[J].电机与控制学报,2011,15(4):74-79.Xiang Qianwen,Sun Yukun,Zhang Xinhua.Modeling and parameters optimal design of bearingless switched reluctance motor[J].Electric Machines and Control,2011,15(4):74-79(in Chinese).
[10]范冬,杨艳,邓智泉,等.无轴承高速开关磁阻电机设计中的关键问题[J].电机与控制学报,2006,10(6):547-552.Fan Dong,Yang Yan,Deng Zhiquan,et al.The key technology on designing a high-speed bearingless switched reluctance motor[J].Electric Machines and Control,2006,10(6):547-552(in Chinese).
[11]Morrison C R.Bearingless switched reluctance motor:U.S.,6727618B1[P].2004-4-27.
[12]Morrison C R,Siebert M W,Ho E J.Electromagnetic forces in a hybrid magnetic-bearing switched-reluctance motor[J].IEEE Transactions on Magnetism,2008,44(12):4626-4638.
[13]Xu Zhenyao,Zhang Fengge,Lee D H,et al.Design and analysis of novel 12/14 hybrid pole type bearingless switched reluctance motor with short flux path[J].Journal of Electrical Engineering and Technology,2012,7(5):705-713.
[14]Lee D H,Wang H J,Ann J W.Modeling and control of novel bearingless switched reluctance motor[C]//2009IEEE Energy Conversion Congress and Exposition.San Jose,CA,United states:Electric Power Research Institute,2009:276-281.
[15]Chen L,Hofmann W.Speed regulation technique of one bearingless 8/6 switched reluctance motor with simpler single winding structure[J].IEEE Transactions on Industrial Electronics,2012,59(6):2592-2600.
[16]曹鑫,邓智泉,庄铮,等.三相串联励磁式无轴承开关磁阻发电机原理与实现[J].电工技术学报,2013,28(2):108-116.Cao Xin,Deng Zhiquan,Zhuang Zheng,et al.Principle and implementation of a bearingless switched reluctance generator with three adjacent excitation-windings connected in series[J].Transactions of China Electrotechnical Society,2013,28(2):108-116(in Chinese).
[17]周云红,孙玉坤,嵇小辅,等.一种新型的磁悬浮开关磁阻发电机[J].中国电机工程学报,2012,32(15):107-113.Zhou Yunhong,Sun Yukun,Ji Xiaofu,et al.A novel bearingless switched reluctance generator[J].Proceedings of the CSEE,2012,32(15):107-113(in Chinese).
[18]周云红,孙玉坤.一种双定子型磁悬浮开关磁阻起动/发电机的运行原理与实现[J].中国电机工程学报,2014,34(36):6458-6466.Zhou Yunhong,Sun Yukun.Principle and implementation of a double-stator bearingless switched reluctance starter/generator[J].Proceedings of the CSEE,2014,34(36):6458-6466(in Chinese).
[19]Wei P,Lee D H,Ahn J W.Design and analysis of double stator type bearingless switched reluctance motor[J].Transactions of the Korean Institute of Electrical Engineers,2011,60(4):746-752.
[20]杨柳,陈艳萍.求解非线性方程组的一种新的全局收敛的Levenberg-Marquardt算法[J].计算数学,2008,30(8):388-396.Yang Liu,Chen Yanping.A new globally convergent levenberg-marquardt method for solving nonlinear system of equations[J].Mathematic Numerica Sinica,2008,30(8):388-396(in Chinese).