基于模型有效匹配的多模型切换控制

Multiple Models Switching Control Based on Effective Model Matching

针对切换控制中模型匹配准则的确定问题,提出了一种基于模型有效匹配的多模型切换控制算法.该算法利用频率响应函数以及系统工况变化后频率响应上的特征,实现多模型系统的模型有效匹配与合理切换.算法可以有效地识别正常工况变化,不受干扰噪声影响,避免了模型的非正常切换.仿真算例表明,该算法在准确识别系统正常突变、合理切换和跟踪系统工况时是有效的.

In order to determine the model matching index of switching control, a multiple models switching control algorithm based on effective model matching was presented. Considering that frequency response function can entirely present the essential character of underlying system, when the operating condition is varied, the change in frequency response can be utilized to realize the effective model matching and proper switching for multi-model system, which provides a novel strategy to solve switching control problem. The algorithm can effectively recognize the normal change of operating condition, and avoid the abnormal switching of models because it is not affected by disturbance. It is further demonstrated with a simulation example that the algorithm is effective on accurately recognizing the normal change of system, proper switching and following the operating condition of system.