PSCAD高手必看的啊？who kown？

xuyufufzu

are this examples of the PSCAD? i guess it is . and i know the case .but i can't know how to apply that to the actual transformer.

xuyufufzu

i mean how to apply the practice parameter to the PSCAD simulation environment.

yizhangsjtu

It is hard to teach you those details here. I will notify you when the HVDC centre offers any course in China. You may go there to get the training. I expect there will a course later this year.
: N+ L9 p4 L; rBuy the way some of the universities in China have pretty good knowledge in PSCAD.Let me know where you are now, I will try to refer you some place to learn.
In the mean time reading the PSCAD manual will be a help.

yizhangsjtu

It is hard to teach you those details here. I will notify you when the HVDC centre offers any course in China. You may go there to get the training. I expect there will a course later this year.
# I2 r8 o$ C6 M! P7 G: yBuy the way some of the universities in China have pretty good knowledge in PSCAD.Let me know where you are now, I will try to refer you some place to learn.
7 t2 W$ [0 N9 N- Z1 p4 z4 yIn the mean time reading the PSCAD manual will be a help.

xuyufufzu

i am in Fzu University now. i should study hard to know the theory of the pscad.
thanks .

xuyufufzu

大家都知道，传输线中的波阻抗的数学模型，上次版主说，PSCAD 与EMTP的传输线的理论都是相同的。
我去看了下EMTP 中的rulebook中的理论，发现里面关于波阻抗的那些内容，估计错了，

suxunwen1

讨论的帖子

xuyufufzu

PSCAD和EMTP 的传输线的理论基础

yizhangsjtu

I wonder where is the table 3 coming from. Obviously there are mistakes in the table.
4 R. |8 j$ o3 M
5 j6 K7 u' s# zThe surge impedance is right:
Zs=sqrt(L/C)
- T) O. v  E2 B+ C9 U1 H
The velocity is wrong, it should be:
v=1.0/sqrt(L*C)
as such the travel time would be:
$ M+ @0 [) K" B& X+ X! U* Y$ }t=Length/v=Length/sqrt(L*C)
# x5 M/ s3 ^( m) i0 S  g: j
# L- k' w3 i, z' MBoth EMTP and PSCAD/EMTDC, or anyone who does electromegnectic transients simulation, must follow those basic concept, or else they won't work.

xuyufufzu

弄出来，让大家更加熟悉传输线的理论