本周，我很高兴欢迎来宾博客Charu Fadnavis和Erman Korkut介绍新的Sllinearizerinterface from金宝appSimulink控制设计。

线性化与Sllinearizer

If you have used Simulink Control Design in the past, the first thing you might wonder is:Why a new interface to linearize Simulink models?

如果您比较linearize功能Sllinearizerinterface, you will realize that many linear analysis tasks can be accomplished by both. The main advantage of theSllinearizer接口是，它使得在不重新编译模型的情况下更容易获得多个传输功能，也称为Batch Linearization。To get more details on the differences between those two approaches, we recommend going through the documentation page选择批处理线性化工具。

The slLinearizer Interface

Let's go through a simple example illustrating the basic of theSllinearizerInterface. For that, we will use a very simple model:

第一步是创建一个Sllinearizer模型的对象。

创建对象后，您要添加分析点。与linearize工作流的Sllinearizer接口，您指定的点更灵活。添加点时，您无需指定它们是输入，输出，打开还是封闭环，等等。

要添加点，您可以使用块名称和端口号或信号名称。对于此示例，让我们添加多个点。

We can now use any of the four得到*methods to obtain transfer functions for the different points and loop openings:getIOTransfer,getLoopTransfer,getSensitivity,getCompSensitivity。

For example, if I want to get the transfer function between the referencerand the outputy:

I usegetIOTransfer:

If I want the sensitivity at the control signalu:

I usegetSensitivity

The important thing to note, is that the model will be compiledonly the first time one of the得到*method is called。

Batch linearization

除了对多个分析点和循环打开的线性化之外，不重新编译模型，Sllinearizerinterface makes it easy to obtain multiple linearizations for a set of operating points or parameter values.

For the example above, let's say we want to obtain a series of transfer functions for different values of controller gaink, all you have to do is:

and you obtain an array of transfer functions:

如果您需要学习的是在多个操作点上线性化，也可以使用Sllinearizerinterface. For a detailed example of this workflow, seeVary Operating Points and Obtain Multiple Transfer Functions Using slLinearizer。

现在轮到你了

Check out the documentation for slLinearizer and try linearizing your model with it. We'd love tohear your thoughts!