有谁研究交直流潮流的

mimidoudou27

有谁研究交直流潮流的，问个问题：
- Y; O5 B+ [* d在交直流联合系统中，当断开直流后交流系统分为两个部分，如果利用交替求解的话，交流部分潮流如何算

问题补充：
' M% l. d5 Z9 \) t4 V2 t3 E! f拆去直流系统之后，网络在拓扑结构上面分为了两个独立的系统，用P-Q法求解的交流系统的时候，B'如何形成？
这两个独立的交流系统是两个平衡点还是一个？

5 V! v4 s2 H9 u6 m5 U- _[ 本帖最后由 mimidoudou27 于 2008-10-16 09:33 编辑 ]

norika

这方面的问题，楼主可参阅王锡凡老师的《现代电力系统分析》一书，方万良老师在这一问题上有比较详细的论述

mimidoudou27

认真阅读后也没有找到解决的办法
有谁知道这个问题的答案啊

yizhangsjtu

First let's clarify that the concepts of reference bus and slack bus.
There will be only one reference bus in an AC system which set the reference of angle.
* T; U) ?2 i( s9 ]There can be more than one slack buses, one of which will be used as reference bus.
Normally one slack bus will be fine in one AC system.
6 B# s9 _- f" @1 |
' W0 z  v% s8 y& {+ sNow for the two separated AC systems after DC is removed, you can treated the both sides as separated system from the beginning when DC is on. Each of them have one reference bus/slack bus. In this case, the two side are two subsystem, they don't have any relationship except the DC. There is no change from normal load flow.
" O. o3 p9 A; y7 c
You can also set only one reference bus but you should have at least 2 slack buses, one in each sub system. Then you should have one fictitious branch to connect them. You can put a very large impedance, such as 1.0e6, then there will be no flow in between the two sides, however you can still run them as an integrated system. In this case, the program will be easier.

% _: g* @- q2 O& t4 F3 eHope the above helps.

zhuguodong87

楼主能不能把你的交直流潮流程序借我一看啊，本人也在学校完成编程的设计！有太多不会~急需！！楼主有的话发我邮箱吧！zhuguodong87@163.com 谢谢您！