Unable to find the Specialized Power Systems group in simscape electrical in newer version r2025b

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Pankit
Pankit 2025-9-23，19:34
评论： James 2025-10-14，14:56
Is it relocated to other sub folder? I was particularly looking for universal bridge for simulating converters but I cant find the specific folder.
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回答（10 个）

Pierre-Francois Allaire
Pierre-Francois Allaire 2025-10-2，19:29
OPAL-RT Technologies has acquired the commercialization and development rights of SimPowerSystems (SPS).
We are committed to supporting all loyal SPS users to continue their experience with this essential tool.
A dedicated SPS website will be launched within the next 1–2 weeks, where you will be able to download the latest version of SPS, fully compatible with the most recent releases of MATLAB/Simulink.
👉 If you would like quicker access, please fill out OPAL-RT’s contact form with your request: https://www.opal-rt.com/contact-us/.
We are doing our utmost to ensure you a smooth transition — and to provide even more features in the future.
More info in the press room : https://www.opal-rt.com/news/a-new-era-for-simpowersystems/
Thank you all ! we got you !!
P
P 2025-10-2，16:42
编辑：Walter Roberson 2025-10-2，17:58
Please read this public press release :
https://www.opal-rt.com/news/a-new-era-for-simpowersystems/
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Luc-Andre
Luc-Andre 2025-10-9，11:31
Hi @Paul Serna-Torre,
We’d like to clarify that SPS Software functions as a standalone solution. The joint priority for OPAL-RT and Hydro-Québec has been to ensure a smooth and uninterrupted transition for all users.
You can expect the same workflows, license management, and performance as with the MathWorks version of SPS.
Our next goal is to continue advancing the product. Later this year, we plan to introduce additional IBR-related models, data center–style load representations, and new features improving load flow analysis.

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Walter Roberson
Walter Roberson 2025-9-23，20:25
It was removed. This fact does not appear in the release notes.
I only know this because I happened to load a model that used specialized power system, and it told me that it had been removed and recommended a conversion script.
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Walter Roberson
Walter Roberson 2025-9-25，3:19
@Pankit
You would have to ask Mathworks Sales to generate a trial license for an older version. Trial licenses cannot be used to access older releases.

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Kory
Kory 2025-9-29，14:37
I contacted support for more information on whether SPS would be supported in future releases and recieved this response:
"The SPS Library will be removed from Simscape Electrical in R2026a. However, in the older releases, you will be able to use the SPS Library. But it is recommended to plan a transition to Simscape native technology to take advantage of its superior modeling and simulation environment and for compatibility with future MathWorks releases."
Now I need to figure out how to rebuilt my system because the spsConversionAssistant only managed to convert less than half of my blocks :(
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Peter
Peter 2025-9-29，14:58
Thanks for the hint. Actually, I have just found PLECS Blockset (https://plexim.com/trial/blockset). It seems to be better targeted to power electronics than Simscape Electrical. It also integrates directly in Simulink and provides many library blocks dedicated for power electronics, including electrical, thermal, mechanical, magnetic and control domains.
P
P 2025-10-3，13:40
编辑：P 2025-10-3，13:41
No need to convert or transition your SPS model with OPAL-RT solution. Strong algorithms already in place to model and simulate Power Electronics in R2025b release, both off line and in real-time

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Dave
Dave 2025-9-26，7:42
I sent an e-mail asking about SPS being removed, and got the following response:
Unfortunately, the Specialized Power Systems library is not available in the R2025b.
You can refer to the release notes below for more details: https://in.mathworks.com/help/sps/release-notes.html
The development team is aware of this, and it will be available in the future release. I apologize for not being able to provide a workaround currently.
Götz
Götz 2025-10-8，9:34
The removal of SPS without notice is IMHO very bad business conduct. Such a decision should be announced in good advance to give users a chance to prepare for the transition. A simple statement hidden in the release notes ("SPS was removed") is far from being enough information. The proposed solution ("use Simscape Electrical instead") is in fact no practical solution as Simscape Electrical does not cover the full functionality of SPS and the documentation of Simscape Electrical is sometimes poor. The whole process is very intransparent. Not really good marketing for Mathworks.
Goetz
Ali Ramezani
Ali Ramezani 2025-9-25，17:10
I have the same issue, and it seems they just decided to abandon it entirely and left us in this situation.
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Sam Chak
Sam Chak 2025-9-26，5:05
Hi @Walter Roberson
It is possible that the SPS library was planned for removal in a future release. However, users are usually notified in advance so that they can familiarize themselves with the alternative new blocks before the old blocks become completely obsolete.
https://www.mathworks.com/help/simulink/slref/interpretedmatlabfunction.html
Currently, this practice appears inconsistent with past removals. While the SPS library has been removed, the Version History in the documentation remains unchanged. Furthermore, there are no replacements for the removed SPS blocks. It does not seem that MathWorks intentionally caused difficulties for SPS users.

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Ibrahim
Ibrahim 2025-9-27，10:41
编辑：Ibrahim 2025-9-27，10:42
Hello,
Did anyone solve the problem ? it is realy urgent. i should work on my project.
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Ibrahim
Ibrahim 2025-9-27，17:36
please can you explain how can i go back to R202a, i tried but i couldnot do it.
i need to go because i need to get the values of the elements, like the RLC and the Voltage souce.
it is urgent please.
Walter Roberson
Walter Roberson 2025-9-27，18:27
@Ibrahim
Visit https://www.mathworks.com/downloads/ . On the left-hand side near the top, select the MATLAB release you are interested in. Click the blue "Download for" button.
It is possible that the downloads site might only permit you to download R2025b. If so then you need to use a MATLAB Central account that has been activated for a MATLAB license.
It is possible that the downloads site might not permit you to download any version of MATLAB. If so then your institution has blocked MATLAB downloads, and you would need to contact your IT department to obtain MATLAB.

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Jason
Jason 2025-10-2，14:42
If you have an existing slx file, spsConversionAssistant does a relatively good job at replacing blocks with equivalent subsytems, but there isn't much support for devising SimScape alternatives on your own if you're starting from square one.
James
James about 2 hours 前
I have used the Specialized Power System, Universal Bridge for many years. At least for me, it is not too difficult to change most of the simulations I have since I was using mostly 3-phase Converters. Most of the same features and some added features are in the individual Simscape models that need selected.
At the moment I have 2025a installed so I can show the differences between the Universal Bridge on the left and the 3-phase converter from Simscape on the right.
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Götz
Götz about 1 hour 前
I agree that a conversion from SPS to Simscape Electrical is possible, esp. when only three-phase systems are considered. However, I personally find the documentation of the Simscape Electrical models incomplete and poor. As far as I know (there might be more documentation available that I do not know of) the names of the internal components and available measurements of a three-phase converter block in Simscape Electrical are not documented. In addition there seems to be no possibility to route internal measurement signals of a Simscape Electrical converter block on a scope.
James
James 28 minutes 前
True, but I use this type of model so the simulation does not take too long. If I want details of the IGBT, Diodes and Snubbers, I design a seperate model and then do a different type of simulation because of the complexity. I have always done it that way so my simulations do not take too long.

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