基于MATLABSimulink的电力系统仿真实验

基于MATLAB/Simulink 的电力系统故障分析

IOkv 系统三相短路分析

三相短路（以中性点不接地系统模型为类）模块搭建:

Thtfee-PhKeFiUIll

三相短路各元件参数设置如下:

UUItjrn e½f1

IdI

DiatTfte. TS > j Te-OOS

S

ILJirtfrI _1

・明

FrQrn

FnJm4

Three-Pha⅛ Source V-I

S0

LMCI

LineI 310

⅞d -d2

AddI

Add4

[SJabq ∣ MUltim s-t⅛f

FBrnfl

L ∣∏* Vl

S⅞ur⅞4 I

SoUrDg V

∣Li∏*3J ∣*⅛

⅛

Fr⅛m2

AddB

Line 3

[S.vβbc ∣

Fr&ml

S SLXi

AddS

y∙bc ∣

□i⅛grtl4 >⅞⅜ Lin^ IO

S⅛q⅛eπoe ⅛∣slyze<

EI BlOCk Parameters: Three-PhaSe SOUrCe

Three-Ph且se SOUrCe (≡ιaεk) (Iink)

7hree"phase VOItage SOUrCe in SerieS Irith RL branch.

ParaZleterS

Phase∙to∙ph且5G ras VOItage (V):

SOUrCe resista ng (Ohas): ∣0.009

SOUrCe IndUCtanCe (H):

116. 58e-5

ThiS block iSpleaents a three-phase P二SeCtiOn Iine to represent a threeβphase transaision Iine・ ThiS block represents Only One PΣ SeCtiOn- TO Iapleaents DOre that One Pl section, you SiaPIy need to ConneCt COPieS Of this block in SerieS・

PaτanetGr≡

FZeQUenCy USed for RLC SPeCifiCatiOn (HZ):

PCSitiVe- and ZerO-SeQUenCe XeSiStanCeS (OhaS/ks) I Rl RO J :

I[ O. 01273 O. 3864]

PGSitiVe- and ZerO-SeQUenCe IndUCtanCeS (H∕ka) I LI Lo J :

I[ O. 9337e-3 4. 1264e-3]

PGSitiVe- and ∑ero-seαuence CaPaCitanCeS (F∕k≡ι}[ Cl CO J :

I [12. 74e-9 7. 751e-9]

Line SeCtion length (IaI):

[130

衣Block Parameters: Load4

Three-PhaSe SerieS RLC LOad (nask) (Iink)

Zapleaents a SerieS RLC load.

ParaZeterS

Configur且tion Y (floating)

Three e Ph且se VI XeaSUXeDent 'nask) :Iink)

This block is used to neasure threeβph且se VOltages and CUXrentS in a CirCUit・ When ConneCted in series Irith a three*ph且3色element, it TetUrn the three PhaSe-toβground VOItageS and Iine currents.

The block Can OUtPUt the VOItageS and CUrrentS in Per unit VaIUeS Or in VOItS and anperes・ CheCk the approPriate boxes if you Want to OUtPUt the VOItageS and CUTrentS in PU

OK CanCeI HeIP APPIT I

ISJ

E Block Parameters: V-I

No□inal phaseβtoβpha5e voltage Vn (VmS)

Measureaents NOne

APPIy

H BlOCk Parameters: Three-PhaSe FaUItl

⅝∣BIDCk Parameters: LOadI

Three-PhaSe SerieS RLC LOad (SaSk) (Iink)

Zapleaents a SerieS RLC load.

Q c5s3.N∕MUItimeterI

¾⅛∣SOUrCe BIOCk Parametγs: FrOm

r- FraB -

ReCeiVe SiSnaIE fro≡ the GOtO block With the SPeCified tag. Zf the tag is defined as SCOPed in the GOtO block, then a GOto Tag ViSibility block SUSt be USed to define the ViSibility Of the tag・ After J UPdate Diagraz:' I the block icon displays the SeleCted tag nane (IOCaI tags axe enclosed in brackets,[], and scoped tag nanes axe enclosed in braces. {})・

OK I CanCeI I HeIP

H FUnctiOn BlOCk Parameters: AddI ∑

2