In research of controlling system about the switched reluctance motor system ( srd ) , there are two prominent problems , one is that it is difficult to set up accurate mathematical model of srm due to serious nonlinearity caused by double - salient structure , the other is that the previous schemes of srd are always equipped with rotor position sensor , which determines the system ' s high speed performance , reliability and cost . as a result , how to detect the position of non - position sensor rotor has become one major direction in the study o f srd 其中较为突出的问题是： 1 )由于sr电机的双凸极结构，电机模型具有严重的非线性，使得建立sr电机的数学模型非常困难； 2 )转子位置传感器的存在影响了电机控制系统的高速性能、可靠性和成本，所以研究无位置传感器转子位置检测技术(或间接位置检测技术)是开关磁阻电机系统( srd )系统研究的重要课题之一。
Compared to other machine types , switched reluctance motor ( srm ) offers an excellent balance between cost , reliability , power density and high speed capability . however the competence of srm used as a novel dc generation system can not be neglected . this dissertation is devoted to theoretical study and engineering practice on switched reluctance generator system 开关磁阻电机作为一种电动调速系统具有结构简单坚固、低成本、高容错性能以及高速运行的能力，同样开关磁阻电机作为一种新型的直流发电系统也具有很大的应用潜力。
The bearingless switched reluctance motor ( bsrm ) has been the focus research since 1990 ’ s . it takes advantage of radial forces generated in the rotational process to suspend the rotor . and it also provides a new approach to solve the problems of switched reluctance motor ’ s ( srm ’ s ) noises and vibration 无轴承开关磁阻电机的研究始于上世纪九十年代,由于充分利用其运行时产生的径向力使转轴稳定悬浮,可为开关磁阻电机的振动和噪声问题提供一种新的解决途径。
