General description of the translation of electric load models Mustafa Eydyany, Amir Yaali Abstract: In power systems, the electrical load consists of a variety of electrical devices, from incandescent lamps and heaters to large arc furnaces and motors. It is often difficult to distinguish the exact combination of static and dynamic loads in the network. In most cases, the general load model is sufficient to achieve the dynamic simulation of load flow and loading (see General Load Model Technical Guide). However, for modeling industrial loads with a large proportion of induction motors, the general load model cannot be suitable. Therefore, there is a second load model that represents a combination of a static load and an induction motor. A diagram of the mixed load model is shown in Figure 1-1. ١ 1 - 1 2 - 2 2 - 1 ....................................................................................... ........ ........................... 2 2 - 2 .......................................................................................................................... 3 2 - 3 .................................................... ............................... ... .............. ........... 3 3 - ! "# 4 4 - % &" % ! "# 5 5 - '( )*+ ) RMS ,- ' . ( 6 5 - 1 ! ............................................................................................. ........... ................... 6 5 - 1 - 1 ............................................................................................................ 6 5 - 1 - 2 ............................................................................................................ 7 5 - 2 ! $% & ' ................................................................................................................. 8 6 - '( )*+ EMT 9 6 - 1 ................................................................................................................ ! ........... 9 6 - 1 - 1 ................................................................................................ ............ 9 6 - 1 - 2 ............................................................................................................ 9 6 - 2 ! $% & ' ................................................................................................................. 10 6 - 3 ...................................................... + ,% / &.%/ / 0%% 12 6 - 3 - 1 0 1 RMS .. ........................ ................... .......................................................... 12 6 - 3 - 2 EMT ............. .......................... ................... .......................................................... 12 13 14 ٢ 1 - ! 2 0 34 5 6+ 72 8 9: &9 9$ 0 7; 5 &<= > ? 5 &9 9$ 6@ 0 A B 0 C @ D E F : .? ? % GH I?@ 0 7?E ! JK 0 % 0 2 &9 % &9 !9 + ?2 D=L 0 MK % N. &9 05 ! 2 ! & 0 &?OP 6 ? : ) ! + &JE ( E !. &?OP &J 0O 0? ? 5 &KH & S 0 05 0 !TK 6&'$ 5 & E ;O !E + ?.? U% 6V .2 D ? &O &?OP + &'$ ? ? % ?O W= 892 1 - 1 + 72 7 N: 2 - !$) 0. N. 1 892) + &9 +OB@ % 0. 0X. >?OY ( 1 - 1 S ( 1 5 7< N ? & +Z ! +B m0 t E [ W= !HK 5 7< ?S W'J Load Flow Consider Voltage Dependency of Loads 72 7< 6!HK V N% .?2 & 7< PQ \ $% ! ! B % +OB@ N%) + +Z ] ^E +OB@ % id = 0 ?2 &O ! JK _ (. 2 - 1 & 2 34 0 !=O. T O 5 7< +OB@ ' ` BK ' !$ W ? % ?2 & [ \ $% &; B % 2 [ ?2 & 892 1 - 1 HJ U W= power factory ٣ : A Y aP b bP b cP b aQ bQ cQ 6 VE +OB@ D D , e aP + e bP b e cP b eQ e bQ b e cQ % VE +OB@ &O D , u % ' + ! 2 \ $ u0 \ $% 0%% 1 (ElmLod) % u 8 C=c \ $% + d ? E % J N ? p0 % q0 + 72 [ ?S ! : !E : A Y plini 6 qlini % scale0 N ? ? E 72 [ 05 I ' 8P % ? E N ? 6 ElmLod B 67%^ scalezone % 0 !'c 0 MK I ' 8P scalelf O _ 72 [ 0 MK I ' 8P Load Flow !E 2 ! 2 !.? .+ plini % qlini !1 5 0e % % C=c ' 1MVA + 6&O % D D , 0 f/ ' g E [ 0 !=O. T % &O [= 0X$ N ? & %. Cc &O D , h^S N ? & +Z i j N. 6N ? ! >? 1 - 2 UY 5" ) 7" 8 e aP , e bP , e cP ( +Z N ? 0 +Z N. 1 +Z i j 2 %. 1 - 2 [= J 0 O ' g 5 !$ 5 7< N ? & +OB@ N. [ E : !E : A !$ V kp % kq !$ 72 [ D , 2 % i (+%' % + ) % N ?P 5 72 [ + : ۴ Nk !E 0 u \ $% 0%% 1 (ElmLod) 6+ 0 S 0P & =OP `H $ c S 6+ Scr & `H $ % m0 t S &9 + !B' 2 - 2 & 9: 34 V 2 l@ % &9 +OB@ N%9 k & =OP `H $ % i j 5 7< N. % + 7 V 2 N%9 k ?2 & ! : A !E . : A V mO % 2 - 3 : ;2 " * +n &$ ? !$ Load Flow W= !$ W ? 1 + 72 7%k ! 6+n &$ ? !$ 7%^P Load Flow ?2 & A _ +X & 0% W= i j 0 &Kp% +Z i j N ?P ! ? & W'J ? 6 0 iEJ ! ! B % ?2 V !K . ?S ! +OB@ % 5 - '( )*+ ) RMS ,- ' . ( +OB@ \ $% &; B % 0 !E + NO LoadFlow + 72 7 h2 5 - 1 % <2 )* !E &. W= N. &9 % c@ !E + & . >?OY 6 N. 5 - 1 - 1 & 2 34 5 !$ 5 7< N ? & +OB@ N. [ E : Nk !E iEJ ? EJ 5 7< iEJ &; B % 0 1 P(kpf) % Q(kqf) & [ 5 ?S ! ?2 : ۶ 0 0 \ $% ! min u % max u 6\ $% 7% V 5 q/ .?2 & [ +OB@ 0 892 72 7 N: ?O Cc N ? 1 - 5 4 % ?2 & A _ 6 ! !E & N: &9 & N: 5 4 5 7< 8E \ $% : : A Y 5 - 1 - 2 & 9: 34 ?2 & ! ?S V ! (? % N.) &9 +OB@ 0. N. : !E Y ?2 & ! 5 ?S ! ? 2 : 892 1 - 5 / V 1 \ $% 0X' 72 7< 4 &c/ L &9 ٧ ?2 +P ? % \ $% !$ 6 &9 +OB@ 0 6V 7%^P : `H $ ! ?S 5 ! & ?2 : Y !E fe ?2 & ! 5 !$ 5 7< V 2 +P C : % + &9 9$ iEJ : : Y • mt x : 9 9 % :K DBe & PU • me x : &9 9$ % :K DBe PU • j T : g 2 N5 +Z DBe S ? % N. % ? 2 5 7< &9 9$ % :K ?2 & ! : ; K mdm x 5 !$ 5 6d UP ?S . K & ?/ ' &9 9 % :K 62 8d 7< ?2 & : Nk !E mt0 x 6+ ! $% &9 9 % :K speed0 % ! $% +P tm1 + &9 9 % :K 0%% 1 05 ! 2 0 RMS ?2 & OP N. NO 6 8dJ) 3 - 2 ( ٨ 5 - 2 %<2 )!= %:> `H $ % +P V ?S & ' ! $% : ?: UY % :K % ! $% &9 9 % :K 6&9 9$ % :K MDM ?S ! 5 A _ ! $% & '% ?2 & : 0. N. ! $% ?S ! (? % N.) &9 +OB@ 5 ?2 & & ' : 6 - '( )*+ EMT EMT iEJ % \ $% ! ! B % c@ Load Flow / RMS 6 - 1 % <2 )* !E 05J 0X. W= N. !E + 05J 0X. >?OY 6 &9 % 0X OB@ N. ٩ 6 - 1 - 1 & 2 34 5 !$ 5 7< N ? & +OB@ N. [ E : 6 - 1 - 2 & 9: 34 &9 +OB@ 0 g?TT l. % dq 892 5 7< E V 0 .?2 & N ! r^E g?TT l. dq /T !% 5 5 7< ij % ?2 & 8' +Z phiref ! g?TT l. % dq !% 5 .?2 & 8' phiref ~~ 62 &5/ K [= ?2 & ! 5 ?S ! +%' % + Js % ?2 & A _ ~~

Reportar conductas abusivas

Detalles del documento PDF

Información de contacto

Microsoft Word - Abs5.docx

Dr.Eidiani