I meet with some problms when simulating tranmission line.
1 visualización (últimos 30 días)
Mostrar comentarios más antiguos
Xiaobo Dong
el 24 de Abr. de 2020
Respondida: Joel Van Sickel
el 5 de Ag. de 2020
I'm simulating a step voltage applying on a transmission line for my high-voltage course. I'm very confused that the system seems to be time-varying. This is my circuit:
I want to simulate the situation when a step voltage is applied on a transmission line(open circuit). But the wave differes with "step time" of the step block varying.
When "step time" is 0.004:
But when "step time" is 0.005:
I am very confused and want to know why.
This is the parameters of the line:
0 comentarios
Respuesta aceptada
Joel Van Sickel
el 5 de Ag. de 2020
Hello Xiaobo,
this is due to the particular transmission line settings. As it is lossless, and in a simscape network with no losses, it is very problematics for traditional variable step solvers to calculate accurately. This shouldn't be an issue once you are simulating something more realistic. To fix this, switch your simscape solver configuraiton block to a fixed time step. 1e-6 will work, but maybe you can use something larger and still get good results. Otherwise, I would use one of the other methods to model your transmission line such that it does include losses.
Regards,
Joel
0 comentarios
Más respuestas (0)
Ver también
Categorías
Más información sobre Simscape Electrical en Help Center y File Exchange.
Productos
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!