【作者】 张汉年； 朱熀秋； 刁小燕；

【Author】 Zhang Hannian 1,Zhu Huangqiu 2,Diao Xiaoyan 2 1.Department of Electronic and Information Engineering,Nanjing College of Information technology,Nanjing 210046,P.R.China2.School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013,P.R.China

【机构】 南京信息职业技术学院电子信息工程系； 江苏大学电气信息工程学院；

【摘要】 推导了无轴承同步磁阻电动机完整的数学模型,其负载条件下径向悬浮力和电磁转矩之间以及径向悬浮力自身在两垂直方向上的分量存有相互耦合。针对其复杂的多变量、非线性、强耦合特性,本文提出基于无轴承同步磁阻电动机实际参数的反馈解耦控制策略,弥补了采用前馈补偿解耦控制完全依赖给定参数与实际参数精确匹配这一缺陷,采用反馈解耦算法可成功解除了上述变量间的耦合关系,构成的控制系统易于实现。仿真结果表明该解耦方法能实现无轴承同步磁阻电动机稳定悬浮运行,可获得上述变量间优良的解耦效果,同时电动机具有良好的动、静态控制性能。更多还原

【Abstract】 The whole mathematics model of bearingless synchronous reluctance motor(BSRM)is derived.Under the load,the main problem is coupling between radial forces and electromagnetic torque,and between the two radial forces in two axes.The bearingless synchronous reluctance motor is a multivariable nonlinear strongly coupled system.In this paper,feedback decoupling control method based on the motor’s actual parameters has been proposed,this method overcomes feed-forward compensation drawback that needs exact matching between given parameters and actual parameters,the coupling between those variables is canceled by using feedback decoupling,and the control system can be realized easily.The simulation results have validated that stable suspension operation and excellent decoupling control effect can be achieved,and good dynamic and static control performance of the motor can be also obtained.更多还原