Typhoon HIL Forum - Recent questions in TyphoonSim

Execution rate causes inestability

Mon, 09 Mar 2026 11:51:16 +0000

Good morning,

I am currently working with an averaged model of a DAB in Typhoon Sim. The model works perfectly for an execution rate equal or inferior than 1e-6 (components execution rate <= 1e-6 works perfectly). The problem is that if I try to lower the execution rate it appears that the simulation of the systems turns unstable, causing either solver error (DAE Solver failed at time 1.3360000000e-02 to find a solution. Please make one of the following changes: (i) adjust solver settings: maximum simulation step, relative and/or absolute tolerance values, (ii) provide better initial conditions, or (iii) choose a different DAE solver.) or not desired results (most signals turn unstable and tend to +- inf).

This particular problem occurs both with closed and open loop, so the control doesn't appear to be the issue.

I need to run the model on a 402 physical HIL, which is unable to run with such small execution rate and I must be able to run the model with a bigger execution rate. I get the same problem with HIL SCADA, if I try to compile the model with an execution rate < 1e-6 the systems turns unstable, otherwise seems to work fine (on vhil scada because as I said the 402 cannot handle this execution rate without CIO an AO warnings with this system).

I've tried to simplify a bit the model but I keep getting the same issue). If anyone has had similar issues or could help me fix the issue any help is appreciated. I'll attach some pictures of the current model that i'm trying tom simulate.

Here's everything but the control, if the resolution is too bad to appreciate the images, let me know and I'll try to provide more information.

Thank you very much in advance.

Salutations,

Sim won't run example RLC model

Tue, 03 Feb 2026 06:47:53 +0000

Fresh install TyphoonSim on Windows, logged in, license installed. Stop time and Run icon disabled. Read Quickstart docs, searched Forum for answers, to no avail. What am I missing?

TyphoonSim unable to run simulation

Thu, 22 Jan 2026 08:26:14 +0000

Hello,

I am trying to run a simulation on a circuit I have and I am unable to press the "run simulation" button as it appears to be greyed out.

I am getting this issue, specifically:

Login failed!

[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1002)

Please, check your internet connection.

I made sure to pull in the license file into the license manager, and I made sure to connect to the internet.

I checked other forums about this same issue, and it seems to solve the issue by disabling an expired certificate. I tried that, but the R3 certificate in question was not there, so there was no certificate to be disabled.

Some context: I am trying to run this simulation over a local virtual machine running windows on my mac.

Problem with login on TyphoonSim

Thu, 18 Sep 2025 07:40:22 +0000

I am trying to log in to TyphoonSim, but the following error is occurring: Login failed! [SSL: CERTIFICATE_VERIFY_FAILED] certificate verification failed: unable to get local issuer certificate (_ssl.c:1002) Please check your internet connection. How can I resolve this? I have already tried some things, like updating Windows, disabling antivirus... nothing worked.

How to use the VBR PMSM in non-linear mode?

Fri, 12 Sep 2025 11:17:47 +0000

I am trying to create a simulation using a non-linear PMSM VBR in TyphoonSim, but when I try to use this model in non-linear mode to use the LUTs of flux vs current, TyphoonSim gives the following error: Validation was not completed successfully! Some components in this schematic aren't available for TyphoonSim simulation. For more information, check the model information dialog. The model in question is the PMSM VBR.

How to use lookup tables in TyphonSim for non-linear PMSM?

Tue, 09 Sep 2025 06:44:45 +0000

I want to simulate a non-linear PMSM, but my model is not working. The electromechanical torque is completely wrong. Does anyone have an example of a model with lookup tables to send me?

How to use "Virtual IO loopback" (e.g. to use PWM modulator) in TyphoonSim

Thu, 26 Jun 2025 07:38:29 +0000

Hello,

I've created a blank DC/DC converter model including the PWM modulator component. This block has no output, help says

In TyphoonSim, component outputs can be individually routed through virtual IO loopback

I did find the help page "Analog/digital IO loopback" which contains too much data for a HIL-device-less TyphoonSim user, but which says reassuringly

When using TyphoonSim IO loopback is always enabled.
...
In TyphoonSim, digital and analog signals are read from the internal virtual IO bus and can be individually routed. Hence, if some signal is sent to digital/analog ouput 1, it will appear on digital/analog input 1.

Also, in the Digital Input help it says again "In TyphoonSim, component outputs can be individually routed through virtual IO loopback."

However, in the end, I didn't find how to route the PWM generator switching signal to the gate input of a Mosfet switch. I tried to use the Digital Input set to "Input 1", but this had no effect. So what is the correct approach?

Best,

Pierre

Issue with setting a load profile for Variable Load (Generic) using a .csv file

Thu, 20 Mar 2025 09:06:56 +0000

Hello everyone,

I need to set a load profile for my Variable Load (Generic) block using a .csv file. I tried using the Dynamic block as input to Pref, and I placed the file inside the project folder. However, during the simulation, the power reference appears incorrect.

Is there anything else I should check or configure to make it work properly?

Thanks in advance for your help!

What is the correct procedure to read the values from the probes in Python?

Wed, 19 Feb 2025 07:09:26 +0000

I am performing a simple mathematical operation in TyphoonSim (square root). The blocks used are Constant, Mathematical Function, and Probe.

TyphoonSim and Typhoon Test IDE

Mon, 03 Feb 2025 11:42:23 +0000

Dear all, I just would like to know if I can use Typhoon Test IDE to run TyphoonSim's simulations.
I'm sorry but I did not find this specific answer anywhere.

Thanks,

Best Regards,

Andrea

is there a component for modelling a Three Phase three Winding Step Transformer

Wed, 15 Jan 2025 08:50:13 +0000

TyphoonSim.exe has stopped working

Fri, 20 Dec 2024 09:51:57 +0000

Model file: https://typhoon-hil.com/forum/?qa=blob&qa_blobid=10083761402219716609

When I run the simulation, there came an error saying "TyphoonSim.exe has stopped working" and there was no simulation executed, but the main window didn't close.

When is TyphoonSim officially coming out?

Mon, 29 Jul 2024 10:12:37 +0000