【作者】 王磊；

【导师】 葛研军；

【作者基本信息】 大连交通大学 ， 控制理论与控制工程， 2007， 硕士

【摘要】 动力磁悬浮轴承(Power Magnetic Bearing简称动力磁轴承)是一种集旋转与悬浮功能于一体的新型磁轴承。由于动力磁轴承悬浮控制绕组与转矩控制绕组同时叠绕在定子槽内，并以转矩控制绕组的旋转磁场作为产生悬浮力的偏置磁场，因此，在空间利用率、电磁效率等方面均有所提高。本文在深入分析动力磁轴承悬浮机理的基础上，建立了磁悬浮力的数学模型，进而得出了动力磁轴承系统可控悬浮力及转矩绕组的运动方程。在转矩绕组中引入矢量控制技术，采用转子磁场的定向控制算法，获得了气隙磁链的幅值及转子的位置角。实现了转矩绕组和悬浮绕组的解耦控制，从而完成转子的悬浮控制，为动力磁轴承控制系统的设计奠定了理论基础。本文设计出以TMS320LF2407A单数字信号处理器(DSP)为核心的数字控制系统，实现了转子位移、速度、电流等参数的监测及信号处理；并根据模型参数与特点，设计出控制系统的软件流程图，基于汇编语言的模块化技术，对各个模块的DSP实现进行了详细的描述，并在CCS2.2环境下运行调试，从而完成了整个控制系统的软件设计。此外，本文借助MATLAB的Simulink对整体控制系统进行了仿真，并对仿真结果进行分析、校正，表明了控制算法的可行性。更多还原

【Abstract】 Power Magnetic Bearing (short for PMB), which combines magnetic levitation bearing with the drive winding, is a kind of new bearings. Because the levitation windings and the torque windings of PMB are overlapped in the stator slots, and the rotating magnetic field activated by torque winding is used to generate the offset magnetic field of engendering levitation force, the space utilization ratio and electromagnetic efficiency is greatly improved.In this dissertation, the mathematical model of magnetic levitation force is built on the basis of the main principle of levitation of the PMB, and the equation of motion of the magnetic levitation force and torque are attained. Vector control technology is proposed on the torture windings, with the flux field oriented vector arithmetic, the amplitude value and phase angle of air-gap flux are attained. And then the decoupling control between the torque and magnetic levitation force is achieved, and the levitation control of rotator is realized, as provide theoretical foundation for the control system design of PMB.A digital control system based on single-DSP (TMS320LF240A) is designed. It can monitor the parameters of the rotator displacement, velocity, phase currents of the windings and other parameters, and process the signal. According to the model parameter and Characteristic, the software flow chart is designed, and each module of realization of DSP of the system is described. Then it is debugged under the CCS2.2 environment, at last the software design of the whole control system is completed.Besides, this dissertation simulates the whole control system using the Simulink of the MATLAB, and the simulation results are analyzed, the control system is adjusted, and then the feasibility of the control algorithm is verified.更多还原