PMSM Simscape Block - Inertia mask parameter

2 次查看（过去 30 天）
Giovanni Pizzolante
移动：Sabin 2022-12-24
Hi all! :)
I have a doubt about a mask parameter to be set in the following Simscape block (https://it.mathworks.com/help/physmod/sps/powersys/ref/permanentmagnetsynchronousmachine.html). The parameter to be set is the Combined machine and load inertia coefficient J (kg.m2) and I was wondering if it should be set considering the size as motor side or load side? It is not specified anywhere.
In particular, the rotor has its own inertia J_rotor and also an Harmonic Drive (transmission ratio k> 1) is attached to the motor, which has its own inertia J_HarmonicDrive (defined at the harmonic drive input side). I was wondering how the J mask parameter should be set. Should I pass J = J_rotor + J_HarmonicDrive (i.e. sum of motor side inertias) or J = (J_rotor + J_HarmonicDrive) / k ^ 2 (i.e. sum of load side inertias)?
Thanks!

请先登录，再回答此问题。

采纳的回答

Dakai Hu
Dakai Hu 2021-4-22
移动：Sabin 2022-12-24
Hi Giovanni,
In this case, if you can figure out what J_HarmonicDrive is, I'd use J = J_rotor + J_HarmonicDrive as the inertia parameter for the PMSM block.
  3 个评论
显示 1更早的评论
Dakai Hu
Dakai Hu 2021-5-17
移动：Sabin 2022-12-24
Torque constant and permanent magnet flux linkage are always evaluated by peak values, whether its phase-to-neutral current or or phase-to-neutral voltage. So to answer your question it should be (N.m / A_peak).

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 Specialized Power Systems 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