May 14, 2021 at 9:40 amranjanpal999Subscriber
I made a PMSM model and implemented applied load torque = -3Nm. Negative sign has been applied as per following discussion: https://forum.ansys.com/discussion/12664/electromagnetic-torque-vs-load-load-torque-in-ansys-maxwell
The PWM model for VFD has been referred from the inbuilt example as per discussion here: https://forum.ansys.com/discussion/26927/co-simulate-ansys-simplorer-and-ansys-maxwell-for-3-ph-pmsm-motor#latest
The expected value graph of Transient torque produced by the motor should have been +3Nm. However, the value that I see is -0.25Nm as shown below:May 19, 2021 at 11:35 amMay 20, 2021 at 2:00 pmHDLIAnsys EmployeeHello ranjanpal999 Here are some information.
1). PM motor is synchronous machine, so synchronous speed need to match current frequency in the simulation.
2). The mechanical transient process could not be performed to match the load for the PM motor, because the torque of the PM motor is determined by the current and phase angle, not load in the simulation. The current control or speed closed loop control are required.
A example is in ...\Examples\Twin Builder\Applications\PowerSystem\PMSM_SpeedControl_EMI.aedt
June 17, 2021 at 7:32 amranjanpal999SubscriberHi HDLI Thanks a lot for your suggestions. I understood what you said.
Now, if I want to put a sinusoidal load torque, is there any way out to do so by changing current/phase angle?
I opened up a discussion here: https://forum.ansys.com/discussion/comment/121479#Comment_121479
What we expect is electromagnetic torque should also have followed a sinusoidal pattern.
However, electromagnetic torque produced is still a horizontal straight line.
Could you please suggest where am I going wrong ?
Viewing 3 reply threads
Ansys Innovation Space
- You must be logged in to reply to this topic.
Simulation World 2022
Check out more than 70 different sessions now available on demand. Get inspired as you hear from visionary companies, leading researchers and educators from around the globe on a variety of topics from life-saving improvements in healthcare, to bold new realities of space travel. Take a leap of certainty and check out a session today here.
Earth Rescue – An Ansys Online Series
The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.
Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.Trending discussions
- Signing up as ANSYS Support Coordinator
- simulation completed with execution error on server
- How to export Ansys Maxwell simulation results for post-processing in matlab or in .csv file
- Maxwell, HFSS or Q3D?
- Running ANSYS HFSS on the HPC (it runs on Linux only)
- Number of parallel paths in Ansys Maxwell
- Unable to assign correctly the excitations in a coil
- Illegal External Terminal – assigning current to a coil
- Running ANSYS HFSS on multiple nodes on SLURM based cluster
Top Rated Tags
© 2022 Copyright ANSYS, Inc. All rights reserved.Ansys does not support the usage of unauthorized Ansys software. Please visit www.ansys.com to obtain an official distribution.