开关磁阻电机的快速仿真非线性模型  

Fast nonlinear analytical model for switched reluctance motors

作　　者：刘珊珊[1] 赵争鸣[1] 孟朔[1] 

机构地区：[1]清华大学电机工程与应用电子技术系,北京100084

出　　处：《清华大学学报（自然科学版）》2002年第9期1176-1179,共4页Journal of Tsinghua University(Science and Technology)

摘　　要：为分析开关磁阻电机 (switched reluctancemachine,简称 SRM)性能 ,利用磁化曲线的近似模型进行电机分析 ,提出一种新的 SRM快速非线性分析模型。分析了电流和转子位置对磁链的影响 ,构建了磁链关于电流和转子位置的连续函数 ,避免了原有的分段数学模型带来的计算困难 ,利用电机的磁路参数 ,通过数值计算的方法 ,得到电流、转矩等电磁参量的解析解。此模型对已知量的要求较少 ,具有较少的磁场分析计算量和数据存储量。函数具有连续可导的性质 ,有很快的计算速度和计算精度。仿真结果证明 ,利用此模型可以迅速准确地进行性能分析 ,适用于 SRM的 CAD的设计和分析 ,为工程设计和调试提供了依据。A simple nonlinear model was developed for the switched reluctance motor (SRM) based on the nonlinear functions for the flux linkage. The model separates the effects of the winding current and the rotor position to give the continuous differentiable equation that can easily predict the performances of SRM. Analytical solutions were obtained, avoiding the difficulties that subsection model might bring. The model required a minimum of percalculated or measured input data, and was used in initial SRM design to minimize the design and analysis time. The simulation results show that the analytical model can predict accurate flux linkage -current relationships, be applicable for the SRM computer aided design software, and help to warrant the engineer projects.

关 键 词：开关磁阻电阻 非线性模型 计算机仿真 磁化曲线 有限元法 性能仿真 

分 类 号：TM352.02[电气工程—电机]