How do I get the DC motor model to match real world
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I'm working on a dc motor model, and trying to compare it to the real world. my model can be seen in figure 1. When I use the input given in figure 2, I get the following outputs: Figure 3 angle of the motor (Yellow is simulation, purple is real world); Figure 4 speed of the motor (yellow is simulation, purple is real world). They match pretty well, but when i look at my current, it is way too high. What parameter do I need to adjust to get the current down, and keep the outputs as they are?
Figure 1
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/149483/image.png)
Figure 2
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/149484/image.png)
Figure 3
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/149485/image.png)
Figure 4
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/149487/image.png)
Figure 5
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/149488/image.png)
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回答 (1 件)
Arkadiy Turevskiy
2015 年 10 月 15 日
You can try using Simulink Design Optimization to automatically estimate model parameters to match both measured voltage and current.
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