双模糊算法在无轴承异步电动机控制中的应用∗

摘要

According to the serious nonlinearity and highly coupling of variables in bearingless induction machine, the traditional control method cannot meet the requirement, a kind of double fuzzy controller based on Mamdani method was proposed. The mathematical mode of bearingless induction machine was established and the mathematical relationship among each variable. Then new type controller was designed, including the overall structure design, the design of double fuzzy controller. According to the MATLAB/simulink simulation, the results show that the novel controller based on double fuzzy control has excellent dynamic and steady performance. It has better control performance, which verifies the feasibility of the design.%对无轴承异步电动机的非线性严重和多变量高度耦合性，传统的控制方法难以达到要求。提出了一种基于Mamdani法的双模糊控制器。建立了关于无轴承异步电动机的数学模型并且得到了各个变量之间的数学关系；接着进行了这种新型双模糊控制器的设计，包括整体设计、双模糊控制器的设计；进行了MATLAB/simulink仿真。结果表明：采用了双模糊控制的新型控制器具有良好的动态性能和静态性能，具有更好的控制性能，验证了设计方案的可行性。