新手求助配电网潮流分析

shirleyy

请问下配电网基本的分析软件常用的有哪些？计算潮流，短路故障等，我查到的有opendss，pss/adept等，不知道是不是可以直接应用

. h2 w9 k& h! q* u* K7 y因为后期要与matlab接口，担心这些软件接口不好做，我目前想直接用matlab编程来计算配网潮流，用前推回代法，目前只编写了一个辐射配网的程序，无环网，无分布式电源，还比较简单，后期加如这些的话不知道实现起来难度大不大
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4 A. `* P; M! j9 n. F4 ?5 v3 `% E" ?我是新手，怕走弯路，想听听大家的建议


; Z: @9 @6 x! H$ |拜谢大家

shirleyy

唉，没人回答，自言自语吧
5 D6 v% }: P/ J$ g我用matlab编写的基于功率来前推回代的程序，算出来和别人的基于电流前推回代的程序总是差那么一点，小数点后一位基本相同，后面就不同了，检查了半天也没看出有什么错误，不知道会不会因为算法不同呢

爵爷

路过 学习学习

macdelight7

use MATPOWER for load flow analysis
& U8 f  _7 u: H* ]http://www.pserc.cornell.edu/matpower/
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It's free and easy to use. All you need is your distribution network data.

shirleyy

use MATPOWER for load flow analysis
http://www.pserc.cornell.edu/matpower/
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It's free and easy to ...
macdelight7 发表于 2011-1-11 08:00

                               
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! S! R2 T2 H5 L# N    可以用来算配网的吗？
; V% [0 b, I3 i' R0 M7 X9 W算输电网的倒是很多软件。。。

macdelight7

回复 5# shirleyy
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  W; _, v; A" T+ {9 R) p9 Y/ R! b    I don't see a reason why you can't use it. The underline models of such algorithm are purely based on those described in the power system text books.
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Some of the difference between distribution and transmission networks are:
# C$ l3 ?0 E$ _+ T - voltage level, line data, circuit configuration
- network topology
- different protection setting

$ N( r0 y% A. jDistribution company in Australia uses PSSE for modelling their network at voltage level 132kV, 66kV, 33kV, 11kV and alike.
  \6 s) w. p( A+ ^2 i4 }3 IThe sole reason that you don't use simulation software for network modelling is when the network is radially connected (i.e. does not form a ring circuit at all). In such case, the calcualtion is rather straightforwad. They can be viewed as discrete branches.
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" P. W) j" m( n2 H( d; Y) KNotice MATPOWER has limited modelling capability and doesn't have a user friendly interface. MATPOWER is a good tool for academic purpose and it's free.

shirleyy

回复  shirleyy
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    I don't see a reason why you can't use it. The underline models of such alg ...
macdelight7 发表于 2011-1-12 06:29

                               
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) H" I4 K5 Q* a& ]8 `6 h0 {    没太明白你说的，配网和大网的结构，r、x比值不一样，算法上用大网的有时不收敛啊

macdelight7

没太明白你说的，配网和大网的结构，r、x比值不一样，算法上用大网的有时不收敛啊
shirleyy 发表于 2011-1-12 10:03

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X/R ratio is already considered in the model. What do you mean by "不收敛"???
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As far as I know, the distribution utility here in Australia uses PSSE for their network.

Some example of the bus data cut from the .raw file:
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- v- x! B3 p+ |6 X) G! {  N  t/ a: T" 9168,'pd1    ',   0.4150,2,  38, 838, 823,1.01300,   0.0000
0 }+ _3 B% K, E  9300,'zsa',  11.0000,1,  47, 820, 847,1.01300,   0.0000
......
5 T8 ]/ h0 I& N   9352,'ZoneSub1' ,  11.0000,1,  35, 808, 835,1.01300,   0.0000
# v0 q4 s- v* q2 S" N5 K   9360,'ZoneSub2',  11.0000,1,  24, 821, 824,1.01300,   0.0000
  9809,'ZoneSub3',  33.0000,1,   9, 809, 809,1.01300,   0.0000
; r6 v  ?, k0 U( d! G2 P 63300,'TS1    ', 132.0000,1,  23, 828, 823,1.06365,   0.0000
1 S4 D* l1 K* Z' S7 D) \ 64568,'ZoneSub4',  33.0000,1,  26, 158, 823,1.04370,   0.0000
65270,'ZoneSub5',  11.0000,1,  24,   1, 824,0.99458,   0.0000
65272,ZoneSub6',  11.0000,1,  24,   1, 824,0.99458,   0.0000"

Highlight in red is the voltage level in KV.