Problem with PMSG turbine modelling

6 次查看（过去 30 天）
Thomas Rhodes
Thomas Rhodes 2015-5-3
评论： Rishabh Shah 2017-7-31
I am currently trying to create a Permanent Magnet Synchronous Generator Model coupled with a wind turbine model. Instead of using the conventional blocks ie the wind turbine and pmsg block set that are already created in Simulink i have created my own subsystems. I believe all the theory is correct however i am receiving and error between the turbine model and the drive train due to the state of the mechanical torque feeding to the drive train being not finite. I understand the error but i dont know how to fix it because the turbine needs the generator speed to calculate the torque but to calculate the electrical torque the mechanical torque is needed.
  1 个评论
Rishabh Shah
Rishabh Shah 2017-7-31
In PMSG no need of Gear box. turbine can be directly coupled to the generator as it is going to rotate at fixed speed provided constant wind speed.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

KL
KL 2015-5-3
编辑：KL 2015-5-3
The PMSM has two inputs, One is three phase voltage and the other is load torque. I understand in your case, you must get the load torque from the wind turbine and the voltages should also be somehow related to the wind speed based on your control system. This working principle is basically the same no matter if it's a generator or a motor, just the flow direction changes. From the three phase voltages you do the transformations, find the currents and then find the electromagnetic torque. Solving these two torques you must be able to get the rotor speed.
  7 个评论
显示 5更早的评论
Thomas Rhodes
Thomas Rhodes 2015-5-4
Okay thankyou so much for your help i think i understand
Raed Ibrahim
Raed Ibrahim 2015-10-29
Hi Guys,I am currently using a permanent-magnet synchronous machine as a generator in my wind turbine model in simulink. The model works very good when the simulation time between 2-4sec, but when I increase the simulation time to 8sec or more. The output values of the generator like stator currents, the speed and torque will change. I don't know why??? I really appreciate the help :)

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Wind Power 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