摘要
为解决开关磁阻电机运行中存在的强耦合、非线性等问题,将模糊自适应控制技术应用到开关磁阻电机调速控制中。通过分析运行中速度误差和误差增量对模糊控制输出量的影响,同时考虑到开关磁阻电机自身的特性,建立了带有校正因子的输出量与误差、误差变量之间的关系,在兼顾计算量和性能的基础上,提出了一种简化的校正因子选择方法,从而实现了根据运行条件在线改变模糊规则。同时,在一台8/6四相开关磁阻电机上分别采用传统PI控制和简化模糊自适应方法进行了试验验证。对比研究结果证明,简化的模糊自适应方法能够有效提高开关磁阻电机调速的鲁棒性。通过使用Matlab仿真,验证了校正因子对模糊控制的影响,简化的模糊自适应方法能够应用于不同的情况,具有较好的动静态性能。
In order to solve the problems of coupling and nonlinearity of the switched reluctance motor（SRM） drives, the self-adaptive fuzzy control was investigated. After the analysis of the influences of errors and incremental errors in speed control, and the characteristics of SRM, the function between calibration factor and errors and incremental errors was established. A simplified method was presented to find the cali- bration factor to change fuzzy rules online, and its calculations and performances were also considered. The simulations were evaluated on Matlab. The simplified self-adaptive fuzzy control and PI control were tested on an 8/6 SRM. The results indicate that the robustness of the system can be improved with the simplified self-adaptive fuzzy control. The results indicate the influences of the calibration factor in fuzzy control, and the simplified self-adaptive fuzzy control＇s adaptabilities in different situations.
出处
《机电工程》
CAS
2014年第1期93-96,共4页
Journal of Mechanical & Electrical Engineering
