Simulating Power Quality Problems by ATP/EMTP

morrisgu · 发表于 2007-8-7 20:50:55

马上加入，结交更多好友，共享更多资料，让你轻松玩转电力研学社区！

您需要登录才可以下载或查看，没有账号？立即加入

×

具体见附件-%-21012-%--%-21016-%--%-32381-%-

yizhangsjtu · 发表于 2007-8-8 02:00:25

The EMT type software can be used to simulate the power quality issue. The bottom line is the trade off between the time step of the software and the highest frequency of problem. Basically it is determined by Shannon theorem. However, it is an accepted rule that 6 samples are need for each cycle of the highest frequency.

Therefore if the time step is 50 Hz, it can cover 0-3kHz response, which mean up to 50th harmonics is fine.

rickmao · 发表于 2007-8-8 05:14:09

I think you meant time step of 50us and system frequnecy of 60Hz?

hbtsy · 发表于 2007-8-8 10:37:04

下载来学习学习！

pllwxh · 发表于 2007-8-10 13:52:02

好啊

rollrocketqq · 发表于 2007-10-22 15:29:13

下载下来学习学习

jk_net · 发表于 2007-10-28 20:38:23

下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下下

jk_net · 发表于 2007-10-28 20:50:01

下不到......

liyueb · 发表于 2007-11-5 22:07:27

关注中.............

damayi · 发表于 2008-2-22 18:58:14

原帖由 yizhangsjtu 于 2007-8-8 02:00 发表
; n e: T5 t- z9 z9 b0 A( b

登录/注册后可看大图

9 m" J# o* I* r9 X& D# {3 O6 _The EMT type software can be used to simulate the power quality issue. The bottom line is the trade off between the time step of the software and the highest frequency of problem. Basically it is dete ...

Up to 50th Harmonic is not necessary, Am I right?

账号		自动登录	找回密码
密码			立即加入

Simulating Power Quality Problems by ATP/EMTP

马上加入，结交更多好友，共享更多资料，让你轻松玩转电力研学社区！

相关帖子

回复 #2 yizhangsjtu 的帖子