In order to simplify controller design of large scale systems, a model reduction method based on internal balanced system is proposed.
为简化大系统分散控制器的设计，提出了一种基于内部平衡系统的模型简化方法。
The model reduction is first carried out by balanced reduction method, then LQG control strategy is used in modal space for control design.
该方法首先利用平衡降阶法对结构进行降阶，然后在模态空间中采用LQG 控制策略对结构进行控制；
CGMIL method is situated between MIL and balanced truncation in performance of model reduction and has advantage among the model reduction methods based on the information theoretic methods.
CGMIL方法在信息类模型降阶方法中有很强的优势，在性能上介于MIL和平衡截断之间。
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