A system approach on power distribution supervisory control catalog

A SYSTEM APPROACH ON POWER DISTRIBUTION SUPERVISORY CONTROL ~. Delgado~PenS::n J. · Se a -Fe n~ndez E.T~S.Ingeni~ os Telecomunicaci6n P .0. Box. 30002 Ba celona (Spain) R. Minondo-Fominaya Emp esa Nacional llid oelic ica del Ribago zani Calle ~6 cega 329 Ba celona (Sp~in) SUMMARY The elec ical ene gy dis ibu ion ne - wo ks need emo e con ol sys ems ha a e cen alised and in eg a e d as ' a as h~ unc- - ions hey can de elop a e conce ned, The need o a hinking uni a he line head o mana- ging a Supe iso y Con ol Sys em is una oida- ble, The hinking uni (mic op ocesso ) mo e- o e , allows a communica ion ne wo k o b·e · buil up which uses he lin e wi hou ol age , .--,; wi h a a iable ' numbe o . ansmi e - ecei e s a ions a ached o he equi pped cen es, as dis cussed in his pape . This pape conside s a s s egy and he execu ion o a S upe iso y Con ol Sys e~ which adop s a dynamic polling s uc u e and which is be1ie ed o be . mo a a ac i a and econo o{cal han ha adop ~d by igid ne wo k s uc u es, The oilowing pa ag aphs discuss he con- igu a ion o he Dis ibu ion Ne wo k , he ~ims ha he Supe iso y Con ol Sys em mus ul i l; he sys em unc ions and a ansmi- ssion sys em des c ip io n. CONFIG URAT IO N OF THE NETWORK The Supe iso y Con ol Sys em conside ed in his pape akes in d accoun a dis ibu- ion ne wo k con igu a ion in which he e is an ope a ing ol age o 25 kV ou s~de he p i- ma y s a ion o jub-s a ion · walls, The Ne wo k . is meshed (excep in so~e isola ed cases o o ally u a~ a eas whe e ope a ion, bo h o¥ 2 o e h~ad and unde g ound lines, is adial ' Figu e I shows e lemen s which usu al ly ma- ke up _ he ype o Ne wo k in b which he Supe£ iso y Sys em is in oduced . Also wo h me n ioning a e h~ T-R blocks which will allow he exchange o in o ma ion · be ween he line Head and he equipped Cen es unde he managemen o a mic op ocesso . AIMS The ma in ai~s o he Supe iso y Con ol Sys em a e -Faul loca ion. I is unde s ood ha a aul has been loca ed when he equipped Cen es closes o i a e k~ow~. PFa~l isola ion. I i~ unde ~ oad ha a aul has been isola ed wh ~n he open- close sub-sys ems ha e been ac i a ed in sucb a way ha h ey p e en he pas Raie o ene gy o he sec ion in which he aul l ies. -Renewal o se ice. Thi $ is unde s ood o mean he ac ions o be aken by m eans o he open-close elemen s w i h a iew o es iblishing se ice on he N e wo k, excep on he sec ion a ee ed by he au 1 . -Cen alised eco din g o all ac ions a- ken on he _ Ne wo k. -Open-ende<! .. , .~ ha is, ha he sys em a.,;. llows a ia ions in he Ne wo k wi hou he need o modi ying i s own . si uc ~ e. SYSTEM F UN CTIONS W~en a aul occu s, h e pa o he sys- eM is•ocia ed wi h he sec ion o he Ne - wo k on which i occu ed, en e s in o ope a- ion . . . _,, .... ;~ The line head mic op ocesso in e o ga es in ~ p ese o de , he equipped C en es ( T-R ) dependen on i , so as o ind ou whe h e hey ha e "seen'' o 11 no seen" he aul cu- en , F om Fi g u e I i can be seen ha i a - e an a i ma i e esponse a nega i e espon - se is gi en, his means ha he equipped Ce n- e~ 6y which he ~aul is bounded ha e be en lo ~ a ed and he aim o loca ion has been u l- illed, .. Follo~ing his, he line Head (T-R) in- o ms he wo equipped Cen es men ion e d ab o e wi h ega ~ o wbich open-close de ices mus be ac ua ed in o de o isola e he a ul and in o ms he n_ ea es isola o o ca y ou he necessa y i sola ion and enewa l o se ~ice. TRANSMISSION SYS EM DESCRPTION Figu e 2 shows h e line head T-R bl ock diag am. The In e ace sub-sys em wi h he mi - c op oces~o is a~ynch onous and ope a es u n- de p og am con ol. On he " ansmission mo- de" he MUX ga he s h e in o ma ion acco ding o he o ma shown in Figu e 4. Then h e di- gi al signal associa ed wi h he bu s (32 bi s) modula es a ca ie in ampli ude (225 Hz). The esul ing •ignal is ampli ied and adap ed o line wi h qe aim o supplying he line 80 V .A. The ca ie~ and he clock signals a e ge- CHI825-9/82/000G-()l03$00. 75©198ZIEEE ... _ 1- L 1 [ I ' ne a ed by an independen , qua z-c ys al ~y~ hesise . On he ~ecep ion mode h~ line sig- nal is equalised on he eeei ~ and h e n pa- s ses h ou g h an en elope de ec o om which in o ma ion is ob ained o con olling he ph a se o he syn hesise ,and de ec ing he d! gi al signal associa ed wi h he . bu s · e cei- ed . Fi g u e 3 shows he T-R block diag am o a n equipp ed Cen e. I can be see n h a he only di e ence wi h eg a d o he dia g am gi en in Fi g u e 2 is h e Con ol Uni sub-sys e n , wh os e ' unc ion s a e · - In T an s mi s sion m ode, c o nn ec ion o he si g nal a sso c i a e d wi h he in o ma ion o " see n" o "no seen" a ul cu en . In Recep ion mod e , g ene a ion o con ol _si gn a ls. Fi g u e 4 illus a es he : d a a ans e o m a whi ch is mad e up o 32 bi s d i s ibu- ed as ol l ows 13 b i s o SYNC a nd adju s ~ m e n o he Au- oma ic Ga in Con ol. · 6 bi s o id e n i i c a io~ · o a s a i on o d e s in il i o n. 6 bi s o iJen i i ca io n o h e s o u ce s a ion. 5 bi s o in o m a i o n. FIGURE 7. J • - 2 bi s o pa i y con ol~ REFERENCES · (1) R.Min o ndo-Fominaya, "A pow* dis ibu- ion sup e iso y c o n ol des c ip ion", (in Spanish), Pap e o mee in g dis i- bu ion o U.N.E.S.A. (Spain), July . 1979. ( 2) M.Neg e, Desid~ i , Pas o elli, B e oneau "Au oma isme de ep ise du se ice su es e ap M. T. en c oupu e·d· a e e" , P ece- de b ebe e "ARll C A" du C.D.N I CE, Sep em- b e 1 974. ,.:.; 1 04 '' ,. _, ·) .. ~ . .. .. .. .-~ ELEMEN EQUIPPED WITH OPENING SYSTEM CONTROLLED FROM THE _ HEAD OF THE L INE ELEMENT E QUIPPED WITH OPENl NG AND CLOSING SYSTEM CONTROLL ED FROM THE HEAD OF THE L INE UNEQUIPPED _MV-LV CENTRE T-R BL OCK !HCROPROCES S OR !UX -V /V! OD A !PL >-- - ' T <1=:!2 INTERF .. SYNTH .. o_ L n 0 ~ e l i DE 1UX DEN OD RECEIV .._.._ .. 0 FIGURE 2 -· ' ·cam NUX . NOD A 1PL ,_____ c 11 . i ·coNTR S' lN TH c Line UNIT c ~I i .. . Con DE NUX DE NOD RECEIV ~ .. ~- ·.FIGURE -3 .. .... , . ~ ·~. SYNC. J DEs JsouR, J NF JPJ .· I I I . · I I I k 73 --~>l-E----6--7!~-6-7!~5~: 2 :~ . FIGURE 4 · . . '· .. • ~. • • 105 . ·, ~·. ·~ ..... .-, ·~