首先介绍两种常用的解耦线性化方法，并给出不同解耦方法下控制系统的结构图。

Firstly, two common decoupling linearization methods are introduced, and the structure of the systems designed by different methods are given.

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其次采用了两种不同方法对斩波串级调速系统的斩波回路进行了建模和分析，并得到斩波双闭环控制结构图；

Then two different method is given to analyze chopper and mathematics model is based, so double-close-loop control chart is got.

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