How can I simulate Inertia in Simulink?
6 次查看(过去 30 天)
显示 更早的评论
Hello,
I got the following images:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/160514/image.png)
Here I try to simulate the inertia of my system and translate it to rpm. The result is as follows:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/160516/image.png)
I don't get why my rpm doesn't follow my torque line.. The initial value for my integrator is zero (speed at t(0) = 0). Could someone help me with this
2 个评论
Babatunde Tolu Ogungbe
2020-11-26
Following the above makes me believe i am in the right place.
Please i need help to Simulate Inertia of a biogas plant. the biogas plant consist of (Anaerobic digestion,Microturbine with PMSG). I would be glad if i could get help.
采纳的回答
Sebastian Castro
2016-4-8
编辑:Sebastian Castro
2016-4-8
Your model and response seem fine to me. Dividing the input torque by the moment of inertia is correct.
The acceleration you're providing is always a positive value ranging from 1250 to 1700 N*m, so your speed should keep increasing with a slightly varying positive slope.
In reality, there would be other subtractive terms before the inertia division corresponding to stiffness, damping, friction, etc. Maybe this is what's missing from your model that you would expect to see?
- Sebastian
3 个评论
Sebastian Castro
2016-4-9
Well, a pump usually will have some sort of friction that depends on the speed of the pump. Generally, the faster the speed, the higher the friction force.
The simplest friction model would be viscous friction, or a damper:
Torque = - C * velocity
Where C is a damping coefficient. Try adding that to your model?
- Sebastian
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Brakes and Detents 的更多信息
产品
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!