飞轮储能系统E型径向电磁轴承动态工作区分析
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摘要
以10 k W·h飞轮储能系统的电磁轴承为对象,分析了E型12极径向电磁轴承的动态载荷特性。通过电磁轴承动态载荷区图,建立了转子不平衡激励载荷与动态载荷区的联系,以提高最大承载能力为目标,合理匹配了电磁轴承磁铁与功率放大器组合。确定了执行器的主要技术参数和转子动平衡精度等级,为磁悬浮储能飞轮系统总体设计、电磁轴承系统设计提供了设计方法和理论依据。
To design the active magnetic bearings(AMBs) in a 10 k W·h flywheel energy storage system, the dynamic load capacity operating range of the E-core 12 pole magnetic bearings was analyzed. Through the plot of the dynamic load capacity vs. excitation frequency, the relationship between rotor unbalance excitation and operating dynamical load range was established. Active magnetic bearing electromagnets matched with power amplifiers were designed to get the largest load ability. The technical specification of actuator, and balance quality grade of rotor were determined to provide theoretical basis for the energy storage system general design and the magnetic bearings system design.
To design the active magnetic bearings(AMBs) in a 10 k W·h flywheel energy storage system, the dynamic load capacity operating range of the E-core 12 pole magnetic bearings was analyzed. Through the plot of the dynamic load capacity vs. excitation frequency, the relationship between rotor unbalance excitation and operating dynamical load range was established. Active magnetic bearing electromagnets matched with power amplifiers were designed to get the largest load ability. The technical specification of actuator, and balance quality grade of rotor were determined to provide theoretical basis for the energy storage system general design and the magnetic bearings system design.
引文
[1]韩永杰,任正义,吴滨,等.飞轮储能系统在1.5 MW风机上的应用研究[J].储能科学与技术,2015,4(2):198-202.HAN Yongjie,REN Zhengyi,WU Bin,et al.Flywheel energy storage system for a 1.5 MW wind generator applications[J].Energy Storage Science and Technology,2015,4(2):198-202.
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[5]SWANN M K,WATKINS J,BORNSTEIN K R.Present limits of operation of product lubricated and magnetic bearings in pumps[C]//Proceedings of the 14th International Pump Users Symposium,1996:121-123.
[6]魏彤,向岷.磁悬浮高速转子基于位移刚度力超前前馈补偿的高精度自动平衡方法[J].机械工程学报,2012,48(16):184-185.WEI Tong,XIANG Min.Autobalancing for magnetically suspended high-speed rotors based on lead feedforward compensation for displacement stiffness force[J].Journal of Mechanical Engineering,2012,48(16):184-185.
[2]SCHWEITZER G,MASLEN E H.磁悬浮轴承:理论、设计及旋转机械应用[M].徐旸,张剀,赵雷,译.北京:机械工业出版社,2012:96-98.SCHWEITZER G,MASLEN E H.Magnetic bearings:Theory,design,and application to rotating machinery[M].XU Yang,ZHANG Kai,ZHAO Lei,trans.Beijing:China Machine Press,2012:96-98.
[3]SWANSON E E,MASLEN E H,LI G X,et al.Rotordynamic design audits of AMB supported machinery[C]//Proceedings of the Thirty-Seventh Turbomachinery Symposium,2008:134-137.
[4]DIMOND T,ROCHKWELL J R D,SHETH P N,et al.Draft:A new fluid film bearing test rig for oil and water bearings[C]//Proceedings of ASME Turbo Expo 2008:Power for Land,Sea and Air GT2008.Berlin:ASME,2008:6-7.
[5]SWANN M K,WATKINS J,BORNSTEIN K R.Present limits of operation of product lubricated and magnetic bearings in pumps[C]//Proceedings of the 14th International Pump Users Symposium,1996:121-123.
[6]魏彤,向岷.磁悬浮高速转子基于位移刚度力超前前馈补偿的高精度自动平衡方法[J].机械工程学报,2012,48(16):184-185.WEI Tong,XIANG Min.Autobalancing for magnetically suspended high-speed rotors based on lead feedforward compensation for displacement stiffness force[J].Journal of Mechanical Engineering,2012,48(16):184-185.