Bug Simulating Thermal Losses for a Rectifier based on Foster Model
1 visualizzazione (ultimi 30 giorni)
Mostra commenti meno recenti
João Rego
il 6 Set 2022
Risposto: Joel Van Sickel
il 19 Set 2022
I am trying to simulate the thermal model for a rectifier like the following example: https://www.mathworks.com/help/physmod/sps/ug/simulating-thermal-effects.html#bvdojyf.
However, I am not getting the same results as the example shows for all diodes (last picture from the link).
The problem occurs only for Diode 3 and 6 as shown in the image below. The picture shows a large temperature at the beginning of the simulation.
If the graph just shows the Diodes 1, 2, 4 and 5, the results are similar to the example ones.
My first thought is that the problem is a bug from Matlab, but since I am not certain about this I decided to ask the community. So, what do you think of this odd behaviour?
Simulink Model:
Foster Model (Subsystem):
0 Commenti
Risposta accettata
Joel Van Sickel
il 19 Set 2022
Hello,
the issue here is that the system is calculating less than ideal initial conditions. The foster model's have the "start from steady state" option selected. Given this is an AC system, the steady state tool is not correctly identifying the appropriate starting condition for temperature. If you uncheck this box, you will get somewhat better initial conditions, and you can take it one step further by specifying your initial conditions for the starting temperature of these devices.
Regards,
Joel
0 Commenti
Più risposte (0)
Vedere anche
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!