无轴承永磁同步电动机的数字控制系统

2006 CES/IEEE 5th International Power Electronics and Motion Control Conference Pub Date : 2006-08-01 DOI:10.1109/IPEMC.2006.4778127

Jianming Deng, Huangqiu Zhu, Yang Zhou

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引用次数: 2

摘要

无轴承永磁同步电机(BPMSM)是一种新型电机，它具有磁性轴承的所有优点。永磁同步电动机是一个高阶、非线性、强耦合的多变量系统。无轴承电机在定子槽中有一组转矩绕组和一组附加悬力绕组。为了实现转子悬浮和电机稳定运行，径向力和转矩力之间的解耦控制是主要前提。在分析永磁同步电机基本工作原理的基础上，采用转子磁场定向控制(FOC)策略，推导了永磁同步电机径向力和旋转部分的数学模型。采用DSP (TMS320LF2407)技术，设计了满足解耦要求的数字矢量控制系统。本文对数字控制系统的硬件和软件进行了开发。实验结果表明，实现了转子的稳定悬浮，转子转速可在0 ~ 5000 r/min范围内连续调节

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Digital Control System on Bearingless Permanent Magnet-type Synchronous Motors

The bearingless permanent magnet synchronous motor (BPMSM) is an innovational type of motor, which has all excellence of magnetic bearings. The BPMSM is a high-order, nonlinear and strong coupling multivariable system. Bearingless motors have a set of torque windings and a set of additional suspension force windings in the stator slots. In order to realize the rotor suspending and motor operation steadily, decoupling control between the radial forces and torque force is the chief precondition. In the paper, based on the basic working principle of BPMSM, the mathematics models of the radial forces and rotation part on BPMSM are deduced by adopting rotor magnetic field oriented control (FOC) strategy. A digital vector control system according to the demand of decoupling is designed by using DSP (TMS320LF2407) technique. The hardware and the software of the digital control system are developed in this paper. The experiment results have shown that the steady suspension of the rotor is realized and the speed of the rotor can be continuously adjusted within the range of 0-5000 r/min

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2006 CES/IEEE 5th International Power Electronics and Motion Control Conference

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