单绕组磁悬浮开关磁阻发电机励磁模式研究
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摘要
为解决飞轮储能用磁悬浮开关磁阻发电机发电效率低、励磁功率不对称等问题,提出一种基于单绕组磁悬浮开关磁阻发电机(SWBSRG)的悬浮发电励磁模式。首先分析了SWBSRG的悬浮发电机理,研究了电机在全周期角度下的磁链特性和径向力特性,划分出励磁与续流发电的合理区间。然后根据虚位移法建立的等效磁路模型,推导出考虑耦合情况下绕组的电压方程和悬浮力模型。引入了零电压励磁模式,并以提高悬浮性能和输出功率为目标,给出了励磁角的优化过程。联合仿真结果表明,闭环系统在不对称励磁工况下输出电压平稳,验证了所述励磁模式的可行性和正确性。
Low output power and asymmetric excitation are limiting factors for the widespread adaptation on flywheel energy storage system of bearingless switched reluctance generators(BSRGs).A novel BSRG combined single-winding was introduced for generating modes of operation and working principles of power converter circuit were analyzed.Then the intervals of suspension region and generation region were divided based on the characteristics of radical force and flux linkage.With the application of virtual-work method and magnetic circuit method,a new model considering two-phase coupling was proposed to establish the windings voltage and suspension force equations.A zero-voltage was applied to the excitation pattern.And the excitation angle algorithm process show that the output power and efficiency of generator are improved.Finally,the proposed algorithm is verified by co-simulations,and the results proved that the windings voltage can be controlled smoothly under the asymmetric excitations.
Low output power and asymmetric excitation are limiting factors for the widespread adaptation on flywheel energy storage system of bearingless switched reluctance generators(BSRGs).A novel BSRG combined single-winding was introduced for generating modes of operation and working principles of power converter circuit were analyzed.Then the intervals of suspension region and generation region were divided based on the characteristics of radical force and flux linkage.With the application of virtual-work method and magnetic circuit method,a new model considering two-phase coupling was proposed to establish the windings voltage and suspension force equations.A zero-voltage was applied to the excitation pattern.And the excitation angle algorithm process show that the output power and efficiency of generator are improved.Finally,the proposed algorithm is verified by co-simulations,and the results proved that the windings voltage can be controlled smoothly under the asymmetric excitations.
引文
[1]TAKEMOTO M,SUZUKI H,CHIBA A,et al.Improved analysis of a bearingless switched reluctance motor[J].IEEE Transactions on Industry Applications,2001,37(1):26-34.
[2]TAKEMOTO M,CHIBA A,AKAGI H,et al.Radical 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.
[3]CHOI B B,SIEBERT M.A bearingless switched reluctance motor for high specific power applications[C]//42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference&Exhibit,2006.
[4]项倩雯,孙玉坤,嵇小辅,等.单绕组磁悬浮开关磁阻电机无径向位移传感器控制[J].电工技术学报,2013,28(8),259-267.XIANG Qianwen,SUN Yukun,JI Xiaofu,et al.Radical displacement sensorless control for single-winding bearingless switched reluctance motors[J].Transaction of China Electrical Society,2013,28(8),259-267.
[5]赵丽丹,邓智泉,曹鑫,等.12/8极单绕组无轴承开关磁阻电机绕组开路故障有限元分析[J].电工技术学报,2013,28(7):131-137.ZHAO Lidan,DENG Zhiqian,CAO Xin,et al.Finite element analysis of open circuit fault in a 12/8 single winding bearingless switched reluctance motor[J].Transaction of China Electrical Society,2013,28(7):131-137.
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[7]ZHAO Lidan,DENG Zhiquan,CAO Xin.Mathematical model of single-winding bearingless switched reluctance motor considering two-phase coupling[C]//Industrial Electronics Society,IECON2013-39th Annual Conference of the IEEE,2013.
[8]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 Yunkun,JI Xiaofu,et al.A novel bearingless swicthed reluctance generator[J].Proceeding of the CSEE,2012,32(15):107-113.
[9]刘泽远,邓智泉,曹鑫,等.全周期无轴承开关磁阻发电机的设计[J].中国电机工程学报,2011,31(12):77-83.LIU Zeyuan,DENG Zhiquan,CAO Xin,et al.Design of a fullperiod bearingless swicthed reluctance generator[J].Proceeding of the CSEE,2011,31(12):77-83.
[10]庄铮,邓智泉,曹鑫,等.无轴承开关磁阻全周期发电机输出功率的建模与优化控制[J].电工技术学报,2012,27(7):41-48.ZHUANG Zheng,DENG Zhiquan,CAO Xin,et al.Modeling and optimal control of the output power of full-period bearingless swicthed reluctance generator[J].Transaction of China Electrical Society,2012,27(7):41-48.
[11]曹鑫,邓智泉,庄铮,等.三相串励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 inplementation of a bearingless switched reluctance generator with three adjacent excitation-windings connected in series[J].Transaction of China Electrical Society,2013,28(2),108-116.
[12]MASATSUGU Takemoto,AKIRA Chiba,HIROFUMI Akagi,et al.Radical force and torque of a bearingless switched reluctance motor operating in a region of magnetic saturation[J].IEEE Transaction on Industry Applications,2004,40(1):103-111,2971-2976.
[13]孙玉坤,吴建兵,项倩雯.基于有限元法的磁悬浮开关磁阻电机数学模型[J].中国电机工程学报,2007,27(12):33-40.SUN Yukun,WU Jianbin,XIANG Qianwen.Mathematic model of bearingless switched reluctance motor based on the finite-element analysis[C]//Proceedings of the Chinese Society of Electrical Engineering,2007,27(12):33-40.
[14]邓智泉,杨钢,张媛,等.一种新型的无轴承开关磁阻电机数学模型[J].中国电机工程学报,2005,25(9):139-146.DENG Zhiquan,YANG Gang,ZHANG Yuan,et al.An innovative mathematical model for a bearingless switched reluctance motor[J].Proceeding of the CSEE,2005,25(9):139.
[15]SHAMSI P,FAHIMI B.Single-bus star-connected switched reluctance drive[J].Power Electronics,IEEE Transactions on,2013,28(12):5578-5587.
[2]TAKEMOTO M,CHIBA A,AKAGI H,et al.Radical 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.
[3]CHOI B B,SIEBERT M.A bearingless switched reluctance motor for high specific power applications[C]//42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference&Exhibit,2006.
[4]项倩雯,孙玉坤,嵇小辅,等.单绕组磁悬浮开关磁阻电机无径向位移传感器控制[J].电工技术学报,2013,28(8),259-267.XIANG Qianwen,SUN Yukun,JI Xiaofu,et al.Radical displacement sensorless control for single-winding bearingless switched reluctance motors[J].Transaction of China Electrical Society,2013,28(8),259-267.
[5]赵丽丹,邓智泉,曹鑫,等.12/8极单绕组无轴承开关磁阻电机绕组开路故障有限元分析[J].电工技术学报,2013,28(7):131-137.ZHAO Lidan,DENG Zhiqian,CAO Xin,et al.Finite element analysis of open circuit fault in a 12/8 single winding bearingless switched reluctance motor[J].Transaction of China Electrical Society,2013,28(7):131-137.
[6]项倩雯,嵇小辅,孙玉坤,等.单绕组磁悬浮开关磁阻电机的原理与解耦控制[J].电机与控制学报,2012,16(11):22-28.XIANG Qianwen,JI Xiaofu,SUN Yunkun,et al.Principle and decoupling control of single windings bearingless switched reluctance motor[J].Electrical Machines and Control,2012,16(11):22-28.
[7]ZHAO Lidan,DENG Zhiquan,CAO Xin.Mathematical model of single-winding bearingless switched reluctance motor considering two-phase coupling[C]//Industrial Electronics Society,IECON2013-39th Annual Conference of the IEEE,2013.
[8]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 Yunkun,JI Xiaofu,et al.A novel bearingless swicthed reluctance generator[J].Proceeding of the CSEE,2012,32(15):107-113.
[9]刘泽远,邓智泉,曹鑫,等.全周期无轴承开关磁阻发电机的设计[J].中国电机工程学报,2011,31(12):77-83.LIU Zeyuan,DENG Zhiquan,CAO Xin,et al.Design of a fullperiod bearingless swicthed reluctance generator[J].Proceeding of the CSEE,2011,31(12):77-83.
[10]庄铮,邓智泉,曹鑫,等.无轴承开关磁阻全周期发电机输出功率的建模与优化控制[J].电工技术学报,2012,27(7):41-48.ZHUANG Zheng,DENG Zhiquan,CAO Xin,et al.Modeling and optimal control of the output power of full-period bearingless swicthed reluctance generator[J].Transaction of China Electrical Society,2012,27(7):41-48.
[11]曹鑫,邓智泉,庄铮,等.三相串励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 inplementation of a bearingless switched reluctance generator with three adjacent excitation-windings connected in series[J].Transaction of China Electrical Society,2013,28(2),108-116.
[12]MASATSUGU Takemoto,AKIRA Chiba,HIROFUMI Akagi,et al.Radical force and torque of a bearingless switched reluctance motor operating in a region of magnetic saturation[J].IEEE Transaction on Industry Applications,2004,40(1):103-111,2971-2976.
[13]孙玉坤,吴建兵,项倩雯.基于有限元法的磁悬浮开关磁阻电机数学模型[J].中国电机工程学报,2007,27(12):33-40.SUN Yukun,WU Jianbin,XIANG Qianwen.Mathematic model of bearingless switched reluctance motor based on the finite-element analysis[C]//Proceedings of the Chinese Society of Electrical Engineering,2007,27(12):33-40.
[14]邓智泉,杨钢,张媛,等.一种新型的无轴承开关磁阻电机数学模型[J].中国电机工程学报,2005,25(9):139-146.DENG Zhiquan,YANG Gang,ZHANG Yuan,et al.An innovative mathematical model for a bearingless switched reluctance motor[J].Proceeding of the CSEE,2005,25(9):139.
[15]SHAMSI P,FAHIMI B.Single-bus star-connected switched reluctance drive[J].Power Electronics,IEEE Transactions on,2013,28(12):5578-5587.