V/F closed loop control of 3-phase Induction Motor

3 次查看（过去 30 天）
siddhartha mudgal
siddhartha mudgal 2018-9-23
回答： Sabin 2024-1-24
I want to design a closed loop speed control of V/F control for three phase induction motor in MATLAB.I stuck at a point that after T=2.2(Simulation Time) at Tm=0(Torque to motor), the system becomes too much unstable and the speed starts to decrease drastically. Also if the load is change, the instant(T) of starting unstability changes.I know the unstability is due to the PI controller but, i didn't find any clue to fix it, so i want help in designing it's closed loop part.

请先登录，再回答此问题。

采纳的回答

Sabin
Sabin 2024-1-24
The PI integrator is too aggressive. Reducing the integral gain will fix the problem in this case. As there is an integrator in the plant, we don’t need too much integral action in the control. For this model using Ki=0.1 will run smootly.

更多回答（0 个）

社区

更多回答在  Power Electronics Control

类别

在 Help Center 和 File Exchange 中查找有关 Motor Drives 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by