用于支撑HTR-10GT氦气轮机的磁力轴承试验研究  

Experimental Study of the Magnetic Bearings for Supporting a HTR-10GT Helium Turbine

作　　者：李东[1] 于晓丽[2] 于溯源[2] 张志俭[1] 

机构地区：[1]哈尔滨工程大学核科学与技术学院,黑龙江哈尔滨150001 [2]清华大学核能与新能源技术研究院,北京100084

出　　处：《热能动力工程》2011年第3期362-365,378,共4页Journal of Engineering for Thermal Energy and Power

基　　金：国家"863"计划基金资助项目(2003AA511010;2005AA511010)

摘　　要：为了验证氦气轮机磁力轴承支撑的技术可行性,根据动力学相似的基本原理,搭建了一个小型的模拟转子试验台架。介绍了试验台架的基本结构及关键参数,并在试验台架上完成的静态悬浮试验、过弯曲临界试验以及自平衡控制算法试验。试验结果表明:静态悬浮时,转子的振动幅度不超过2μm;串联相位补偿器的PID控制器能够使转子顺利通过了前两阶弯曲临界;自平衡控制(AUVC)方法能够有效地消减转子的振动幅度和线圈电流的变化幅度。通过模拟试验,验证了磁力轴承的设计原理及控制方法,积累了设计和运行经验。To verify the technical feasibility of the magnetic bearings for supporting a helium turbine,a small-sized rotor simulation test rig was built based on the basic theory of the kinetic similarity.The basic structure and key parameters of the test rig were described.On the test rig,completed were a static state levitation test,bending critical speed passing test and self-balance control algorithm test.The test results show that during the static state levitation period,the vibration amplitude of the rotor does not exceed 2 μm.The PID(proportional,integral and differential) controller of the tandem phase compensator can make the rotor successfully pass through the first and second order critical speed.The self-balance control method can effectively reduce and eliminate the vibration amplitude of the rotor and narrow the variation range of the current through the coils.By the simulation test,the design principle and control method of the magnetic bearings were verified and certain design and operation experience was accumulated.

关 键 词：磁力轴承 氦气轮机 试验台架 控制算法 

分 类 号：TK497.22[动力工程及工程热物理—动力机械及工程]