Vol. 4, No. 6 June 2013 ISSN Journal of Emerging Trends in Computing and Information Sciences CIS Journal. All rights reserved.

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1 Vol 4, No 6 June 03 ISSN Jounal Emegng Tends n Computng and Infomaton Scences CIS Jounal All ghts eseved Optmal Powe Dstbuton System Placement to Install the RTU wth Heachcal Analyss Technque Hamzeh Davsh, Somayeh Mohammad Depatment Engneeng, Ghas-E-Shn banch Islamc Azad Unvesty, Ian Depatment Engneeng, Ghas-E-Shn banch Islamc Azad Unvesty, Ian ABSTRACT Swtchng devces n the automaton dstbuton netwoks ae vtal As the lagest pat electcal netwok s dstbuton secto and ths s the only pat the chan poducton, tansmsson and dstbuton whch s dectly n contact wth people So the mpotance automaton n ths secton s qute evdent In addton, the numbe dstbuton s s vey hgh and mplement automaton n all dstbuton s economcally s not affodable Moeove, t eques a lage nvestment Thus, t s necessay to have a method to choose key postons; ths method should be apd, effcent and based on scentfc computng In ths pape, a new method s pesented based on scentfc computng by whch one can quckly detemne the locaton key postons Keywods: Heachcal Analyss AHP, Automaton, Placement, Temnal INTRODUCTION Inceasng complexty and boadness powe systems make these systems dffcult and senstve to be managed on supevsed Ths management and supevson accomplsh n the decton povdng elablty featues and optmzng poducton and tansmttng powe systems by SCADA and dspatchng systems In these systems key data senstve ponts system whch nclude measuement numbe, condtons and alams, s collected by specfc equpments and tansmt to contol statons by a cable tansfe system In the statons wth stwae analyss data pecautonay and contol poceedng s mplemented Theefoe powe system wth all complextes s able to contol, manage, supevse fo guaantyng opeaton accuacy and mpovng the qualty supevson and contollng, tansmttng data between temnals and contol statons should be vey accuate [] Inceasng development dstbuton systems make the uses tadtonal methods mantan ace, opeaton and system potecton mpossble Fo ths eason, yeldng the nfomaton dstbuton systems classfyng them and also explotng automaton system t mean system that enable dstbuton companes to supevse ndectly hamonze and do odes on equpments nstantly and fom emote dstance s an obvous and nevtable task GENERAL GOALS OF AUTOMATION OF DISTRIBUTION The goals mplementng automaton system ae: Reduce opeatng costs, epas, mantenance (Opeaton & mantenance) [] Postpone nvestment to buld new faclty Impove the effcency the dstbuton system and mpove the eteval tme Incease system elablty Povde bette and faste sevces to consumes and ncease the satsfacton [3] Bette and moe accuate nfomaton and statstcs the dstbuton system and consumes The aveage duaton a powe outage shut down Howe [4] none Theefoe, the mplementaton ths atcle, all the nfomaton load dstbuton, contol cente and can be accessed va computes and alam systems also leads to the occuence faults n the netwok contol cente nfomed ts fndngs n take acton to esolve t The opeatons ae caed though n seconds, and wth subscales nstallaton eos such motozed equpment, opeaton tme and toubleshootng mnmzed the occuence specfc connectons n a shot tme and s solated fom the est the netwok [5] 3 SELECT THE LOCATION OF TERMINAL INSTALLATION RTU o dstant temnal s a machne that s a mcopocesso whch s used fo collect a nfomaton and do odes fom dstant to equpments n the RTU s wthn a specal aea and t s task s make a connecton wth all stwae fo gettng nfomaton them and tansmttng nfomaton to SCADA and gettng contollng odes fo each one exstng tools n specal aea SCADA, totally RTUs ae constucted based on mcopocesso Installng temnal n s ncease the elablty system and decease custome's outage costs The degee advancement and o destucton the elablty system s senstve to locaton And changng the locaton n feede can mpove o destuct the elablty system [6] Fndng the 55

2 Vol 4, No 6 June 03 ISSN Jounal Emegng Tends n Computng and Infomaton Scences CIS Jounal All ghts eseved locaton and numbe necessay s fo automaton and temnal nstallaton s complcated ssue nclude dffeent paametes In ths eseach, we ted to lookng to some paametes and eseach poblem and pesent a smple and quck soluton n ode to select the s Studyng the statstcs the numbe s n bg ctes and complex dstbutng netwok that s lke a confused skn We undestand that t s necessay to fnd a smple and pactcal soluton 4 THE IMPORTANT CRITERIONS FOR PRIORITIZE SUBSTATION A FEEDER AHP pocess smultaneously allows untouchable cteons to compound wth quanttes and touchable ctea Ths pocesses use two by two altenatve compason and decson ctea [7] It s necessay to collect nfomaton detemnes fo compason Even compasons help to detemnes to just focus on compason whch s based on two ctea wthout any touble In addton, two by two compasons povde valuable nfomaton about the poblem unde queston and mpove the logcalty decson pocess One the elements that have an mpotant effect on accuacy esult fom mult cteon techncal s the numbe ctea and choces n the stuctue decson pocess [6-8] In ths decton, afte some meetng wth expets n dspatchng aea dstbuton company, followng ctea table (I) obtaned as potze fo s feede Table I: Ctea feede s Load Capacty Dstance between s fom the othe s Subscbes usually ae commecal, dwellng o specal (hosptal, mltay poltcal and ) Subscbe's type n a can be a cteon fo make o doesn't make a automaton n a s 5 HIERARCHICAL STRUCTURAL DESIGN AND ITS ANALYSIS FOR RTU PLACEMENT Followng fgue s gaphcal dsplay poblem on the study In the head ths fgue s the man goal whch s detemnng the Low heaches ae chosen ctea Substaton Accessblty Load Types and The Total Numbe Customes Gd Topology and Maneuveablty Consdeng that whateve the length cable s longe, accdent may happen moe Ths cteon s consdeed Substatons that have mult entance and multunt wll be vey mpotant because opeaton and slence tme Lke s numbe3 n system that showed n fgue (I) that s vey mpotant because topology Thee ae s that locally access to them ae vey dffcult fo example, when a s s n a place that s a hgh taffc n ts decton, o wll be closed n a specfc tme, f an accdent happen, we need moe tme fo access to them and moe dstbutng enegy Load and numbe subscbes n each whch has moe s and has moe load than one that has less load and less subscbes s n dffeent poty fo Automaton Fg : The analytc heachy pocess (AHP) scheme Fst, wth qualtatve and what was explaned, allocate to dffeent types load that ae n ed system As a esult a table lke (II) can be complete and each type load wll obtan fom geometcal aveage n each lne Table II: Even compason types loads and detemnng the fnal each one dwellng Commecal Specal dwellng, 3, Commecal, 3, Specal,3,3 fnal 3 55

3 Vol 4, No 6 June 03 ISSN Jounal Emegng Tends n Computng and Infomaton Scences CIS Jounal All ghts eseved,fnal fo each cteon afte detemne the fnal each type loads, egadng to that, each has a specal numbe pvate subscbes, commecal and dwellng dstbuton system w * * * p, D A E W 3 p, Whee,s numbe I wth fst featue(type and numbe subscbes),fnal each knd subscbes, A,numbe commecal subscbes numbe(), D numbe dwellng subscbes numbe() and E numbe() s numbe specal subscbes A Subscbe's Load Accodng to stuaton ng s, they can be dvded to fou goups lke table (3) and fnally the each wll obtan based on the cteon subscbe's load Table III: Even compason capactes and detemnng the fnal each one 630kva 800kva 000kva 00kva, n ths table s capacty numbe (I) as mentoned fo two topology and degee access cteons, wll use AHP model 630kva 800kva 000kva 00kva fnal,,3,4,,3,4 3, 3, 3,4 3 4, 4, 4,3 4 A A Table IV: even compason cteons Type A type numb e Compaatve ctea ( &j) Weght ctea tch Table V: the manne gvng a scoe n all tables Equal Load 3 Bette 5 Vey well 7 Geat 9 Excellent Acces s,4,6,8 It's between these scales topolo gy dstan t A, A,3 A,4 A,5 A,6 Numb, e A A,3 A,4 A,5 A,6 Load A 3, A 3, Acces 4, s A A 4, A 4,3 Topol 5, ogy A A 5, A 5,3 A 5,4 A 3,4 A 3,5 A 3,6 A 4,5 A 4,6 Dsta 6, nt A A 6, A 6,3 A 6,4 A 6,5 fnal wegh t A 5,6 A A A 3 A 4 A 5 A 6 6 DETERMINING PRIORITIES AND RELATIVE IMPORTANCE OF AFFECTIVE INDEXES IN RTU PLACEMENT In fst step, we oganze the event compason matx fo each cteon sepaate In AHP method choces compae two by two The compason accomplsh by questonnae (opnon expets) o esponsble peson Accodng to esult compasons that can consst completely bette o excellent, geat, vey well, bette o equal answe, they match n odnal espectvely between 9 to At lasts the even compason matx fo featues s n follow: Second step consst even compasons notced cteons n each level heachy n answeng to achevement goal o hghe level cteons These compasons nset n a matx named (even compasons matx) Ths matx has two man featues Fst ts damete s that means pefeence ato a facto compae wth tself s (one) and second, pefeence factos egadng to each othe have evesal qualty [9]It means that fo example f ato pefeence A to B s 4 Theefoe ato pefeence B to A wll be /4 and evesed These two featues cause to compang N featues, adjectves o choces espondent just answe to n( n ) queston (even compason) because when N factos put on the table two by two The outcome matx 553

4 Vol 4, No 6 June 03 ISSN Jounal Emegng Tends n Computng and Infomaton Scences CIS Jounal All ghts eseved has n n membe, half these numbe s evese othe pat and n membe matx's damete s also (one) A Popotonal calculaton potes fo second level ndexes heachy In second stage all choces () feede fgue () ae measued and even compason n elated to all cteon Table VI: even compason s fo each type subscbe s cteon each fnal ctea,,,,, Compaatve ctea (&j) Weght ctea tch opton based on j the 7 UNDER STUDY NETWORK Fo example we studed one netwok n Tehan that shows below 8 CALCULATION OF CRITERION'S PROPORTIONAL WEIGHT Fst, detemnng each cteon Result ths pat was shown n table (VII) Table VII: Even compasons cteons Type and numbe load Access Maneuve stuaton fnal Type and numbe load Access Maneuve stuaton The esult table (VII) s showed table (VIII)In ths table the mpotance cteons aanges fom hgh to low espectvely and the nomalzed s wtten n font them Table VIII: Result Cteon's Poty Result cteon's poty Nomalzed each cteon stuaton maneuve and topology degee access subscbe's load type and numbe subscbes a Calculaton popotonal s fo each cteon b Calculaton each athe than stuaton maneuve and topology cteon c Calculaton each athe than degee cteon Table IX: Nomalzed each n stuaton maneuve and topology cteon Numbe Numbe Fg : unde study netwok 554

5 Vol 4, No 6 June 03 ISSN Jounal Emegng Tends n Computng and Infomaton Scences CIS Jounal All ghts eseved Table X: nomalzed fo each n the stuaton degee access to cteon Numbe Numbe Table XI: Allocaton to types subscbes Type subscbes Nomalzed dwellng Commecal Specal Accodng to table (XI -X)and fgue()and data about numbe subscbes, nomalzed ths cteon fo each wll equal wth: Table XII: Nomalzed fnal each n type and numbe subscbes 630kva kva CALCULATION OF FINAL WEIGHT OF EACH SUBSTATION Afte detemne the each n dffeent cteon, t wll pocess the fnal each detemned poty fo s showed n table (XII) In the pevous chapte detemned each feede o actually densty each s detemned Now t's a queston that how many and whch ones should be automaton? Table XIII: fnal each kva kva Table XIV: fnal aangement s Poty Poty DETERMINE THE SUBSTATION FOR AUTOMATION In the pevous chapte, t detemned that two ponts need to automaton now accodng to obtaned, useful ponts, ae ponts that densty's balance s n t It means fst /3 and /3 second densty wll be useful pontsaccodng to table (XI) the sum nomalzed s s ae 77 and fst /3equal second t equal Accodng to ts thd and foth s wll select RESULT Use automaton's equpment and especally dstant temnals n dstbuton system s necessay and fo decease the slence tme just should use temnals Accodng to dstbuton systems expandng, use mathematcal method and calculaton fo obtan the slence tme need a long tme and t s tme consumng Theefoe use an expemental method based on heachy analyss can be useful and effcacous wth temnal and mathematcal and expemental calculatons and selecton the sutable place fo nsultng temnal, degee slence wll decease about 70% that t cause to ncease opeaton, dstbuted enegy and othe paametes fo qualty dstbuton electcty Result expemental calculatons also povng the accuacy expemental calculatons and decease tme fo enteng the data and calculatons REFERENCES [] D Kschen and G Stbac, Fundamentals powe system economcs, UK: Wley, 004 [] R E Bown and A P Hanson, Impact twostage sevce estoaton on dstbuton elablty, IEEE Tans Powe Syst, vol 6, no 4, pp 64-69, Nov 00 Poty Numbe Poty Numbe [3] FGhafazadeh and MTabatabaean, "secuty nfomaton n SCADA systems", 4 th electonc confeence, Ian, Tehan, 009 [4] The epot feasblty studes, Ian Monenko Moshave Copoaton, 00 [5] Mohamad Jalal and Rajan Tna, "Analyss and Implementaton Electc Dstbuton Netwoks Automaton n Noth Tehan", 9 th confeence Electc Powe Dstbuton Netwoks, Tehan,

6 Vol 4, No 6 June 03 ISSN Jounal Emegng Tends n Computng and Infomaton Scences CIS Jounal All ghts eseved [6] Esmael Mosh, "AHP Balanced Model fo Goup Selectng and Decdng", 00 [7] Hassan Ghodspoo, "Heachcal Analyss pocess", Amkab Polytechnc pess, [8] Development Dstbuton System Relablty and Rsk Analyses Models, Vol, EPRI EL- 08, Poject 356-, Repot, Aug 98 [9] Thomas L Saaty, "The analytcal heachy Pocess; plannng, poty settng, esouce allocaton ", New Yok Mc Gaw Hll,