Yiya kumxholo 
I-BESS CT polarity PASS ikhupha isignali ye-PCC ebizwayo kwiindlela zokusebenza ezigubungelwe luvavanyo. I-kWh enokusetyenziswa, umgangatho wamandla kunye nokufumaneka kuhlala phantsi kweenkqubo zazo. Phambi kokuba isiphumo sokulinganisa sidlule, amaqela ombane kunye nawolawulo kufuneka avumelane ngendawo yokulinganisa, umlinganiselo we-CT, i-polarity, ukudityaniswa kwe-phase, uphawu lwe-software kunye ne-timestamp.
Xa i-400 V MegSolid ESSA0100B-0215 ilandela umyalelo wokutshaja okanye wokukhupha, ikhonkco lokulinganisa le-PCC elifakwe kwisiza eline-CTs ezijikisiweyo lisengabika icala eliphikisayo. Impendulo yekhabhathi kunye nokulinganisa kwesiza zinemiqathango yovavanyo eyahlukileyo. C&I ulandelelwano lovavanyo lwe-BESS Ubeka i-CT yokugqibela, ivoltheji-yokufaka, imitha kunye neetsheki zenethiwekhi kwisiza.
Ukuphelisa incopho nokungathumeli nto ngaphandle zombini zisebenza kwisignali ye-PCC. I Inkcazelo yomgangatho wokulawula we-BESS wokungathumeli ngaphandle Imisela umda wolawulo. Ukuqinisekiswa kokusebenza kufuneka kubonise ukuba isignali efakiweyo ihamba ngecala elinye nokuhamba kwamandla okwenyani.
Isizathu sokuba i-CT Polarity yodwa ingakwazi ukungqina icala lamandla e-PCC
I-CT eqhelekileyo iguqula umbane ophambili ibe ngumbane omncinci wesibini. Ukungenisa, ukuthumela ngaphandle, ukutshaja nokukhupha umbane zifumana intsingiselo yazo kamva kwindlela yokulinganisa. Ukuqwalaswa kwe-CT, iziphelo zesibini, ukudityaniswa kwe-voltage ne-phase, useto lwemitha, iirejista zonxibelelwano kunye nophawu lwe-EMS zonke zinegalelo kwixabiso lokugqibela.
Uvavanyo lwe-polarity lunokuphumelela ngelixa ixabiso le-PCC eliphilayo lisele liphosakele. I-P1/P2 kunye ne-S1/S2 zinokuvisisana, kodwa umbane we-L1 unokudityaniswa ne-voltage ye-L2. Imitha inokuqikelela umbane ophambili ochanekileyo kwaye i-EMS inokuwulinganisa kwakhona. Naxa inani lichanekile, liyalahlekisa xa i-timestamp yalo ithelekiswa nomyalelo we-PCS ongachanekanga.
Ukuqaliswa komsebenzi kulandela isignali evela kumqhubi ophambili ukuya kwimpendulo yokulawula. Isiphumo esisayiniweyo siquka imitha, useto kunye nendlela yokusebenza esetyenzisiweyo ngelo xesha lokusebenza.
Ukufunda okunokwenzeka kusenokwenza ibhetri isebenze ngendlela engachanekanga.
Thatha umzekelo wefektri efuna malunga ne-420 kW kwisango layo eliphambili lombane. Injineli yokuqalisa umsebenzi iyalela ukuba kukhutshwe i-20 kW. I-PCS ifikelela kwinqanaba elimisiweyo, kodwa imitha ye-PCC iyenyuka isiya kwi-440 kW. Xa kujongwe kwizikrini ezahlukeneyo, akukho nani lenza ubudenge.
I-injiniyela iphethe umyalelo kuloo ndawo. Ii-CTs ezijikisiweyo ngenye inkcazelo; ukungangqinelani kwe-voltage/current phase, i-duplicated CT multiplier okanye uphawu lwe-EMS olujikisiweyo lunokubangela umkhwa ofanayo. I-clock offset inokubeka ukwanda komthwalo ecaleni komyalelo webhetri ongachanekanga.
Amaxabiso oqobo ngesigaba ngasinye agcinwa phambi kokuba nabani na atshintshe iintambo okanye isoftware. Ukusombulula iingxaki ke kuhamba ukusuka kwizikhululi ukuya kwi-EMS tag, ngomgangatho omnye ngexesha.
Qala ngemida kunye nesivumelwano seempawu.
I-meter efakwe iintambo ngokuchanekileyo kwindawo engachanekanga ayinakwenza ukunciphisa umthwalo wexesha eliphezulu kwisiza sonke. Ukuze kwenziwe ukunciphisa umthwalo wexesha eliphezulu kwifektri, umlinganiselo we-PCC uhlala ukwindawo engaphambi kwemithwalo yesiza kunye ne-BESS feeder ukuze ubone konke ukutshintshiselana kwamandla kwigridi. I-meter ekwi-BESS feeder ibona amandla akwikhabhathi kuphela. I-meter ekwibhodi enye yokuvelisa ayiboni nawuphi na umthwalo ongaphandle kwale bhodi.
Khwela umzobo wemigca emnye ovunyiweyo kwaye uphawule:
- umqhubi oyintloko odlula kwi-CT nganye;
- i-voltage ekhutshwayo esetyenziswa yimitha;
- umitha okanye isango lokupapasha amandla asebenzayo;
- I-tag ye-EMS efumana elo xabiso;
- wonke umguquli wemilinganiselo okanye uphuculo lweempawu phakathi kwemitha nomlawuli.
I- Isikhokelo se-switchboard ye-400 V BESS Yahlula isixhobo sokondla sekhabhinethi kumsingathi, kwibhasi nakukhuselo lwendawo. Umzobo osetyenziselwa ukuqaliswa kufuneka ubonise olo lwahlano lwenyama.
Bhala umgaqo wophawu ecaleni komzobo. Ngegridi, i-positive ingena, kwaye kwi-BESS i-charging i-positive:
PIkomiti yezobutyebi yelizwe ≈ PUmthwalo wesiza + PUbuncwane
Ukukhutshwa kwenza PUbuncwane I-negative, ngoko ke ukungeniswa kwe-PCC kuyehla xa umthwalo weziko usahleli umile. Ukutshaja kwenza ukungeniswa kunyuke. Iiprojekthi zinokusebenzisa umgaqo wophawu owahlukileyo. I-meter, i-EMS, i-PCC, i-SCADA kunye novavanyo olune-signed zisadinga ukuba zivumelane ngenkcazelo enye.
Okufuneka kuqinisekiswe kwi-CT nakwimitha
Ukuphononongwa okungenamandla kuqala kwi-CT efakiweyo. Ipleyiti yegama inika isilinganiselo sayo esiphambili nesesibini, udidi lwechaneko, umthwalo oqikelelweyo kunye neempawu zesiphelo; ezinye iimodeli zikwanenombolo yesiriyali eyodwa. Ingeniso yemitha kufuneka ihambelane nesekethe yesibini efakiweyo eyi-1 A okanye eyi-5 A.
Umlinganiselo nokulinganisa
I-CT engu-600/5 A inomlinganiselo ongu-120:1. Ukuba isixhobo sovavanyo esifanelekileyo silinganisa i-2.5 A kwisigaba sesibini, umbane wesigaba sokuqala ohambelanayo ngu-300 A.
Umlambo ophambili = umlambo wesibini × umlinganiselo we-CT
Imitha elungiselelwe i-600/1 A kuloo sikrovo se-600/5 A yenza impazamo engaguqukiyo. Impazamo efanayo iyavela xa imitha sele ipapasha ii-amperes zokuqala kwaye i-EMS iphinda iphinda isibhalo.
Beka umlinganiselo we-nameplate ecaleni kwesethingi yemitha, iyunithi yeprotocol kunye nomphindi we-EMS. Ubalo lomthwalo lukwabandakanya iintambo zesibini, iitheminali, iibhloko zovavanyo kunye naziphi na izixhobo ezidityaniswe ngokulandelelana. Iintambo zesibini ezinde zifanele ingqwalasela kuba umthwalo ogqithisileyo wongeza umlinganiselo kunye nempazamo yephase.
Ipolarity kunye neempawu zeetheminali
Ii-CTs zinokusebenzisa i-P1/P2 kunye ne-S1/S2, i-H1/H2 kunye ne-X1/X2, i-K/L kunye ne-k/l, okanye umcimbi. Landela umzobo womvelisi ofakelweyo kunye nomzobo weprojekthi ovunyiweyo. Imibala yee-cables ayingqina polarity.
Musa ukushiya uvulekile iseconderi ye-CT yesiqhelo enogunyaziweyo. Amaxwebhu e-meter ka-Schneider Electric nawo afuna ukuba iseconderi ye-CT ifakwe emhlabeni ngokungqinelana nemiyalelo yesixhobo kwaye alumkisa ngokuchasene nokusebenzisa isibonisi se-meter ukungqina ukuba isekethe ayinayo amandla. Abasebenzi bombane abaqeqeshiweyo kufuneka basebenzise amalungiselelo avunyiweyo okwahlula, okwenza i-shorting kunye novavanyo. incwadana yomrhumi yokhuseleko Lawula indlela yokusebenza.
Inxulumano lesigaba
Umjelo ngamnye wangoku ufuna ivoltage evela kwiphase enye. Ukungangoku okuvela kwi-L1 kudityaniswe nevoltage ye-L2 kunokubonisa ubungakanani bamandla obukholelekayo, ngelixa amandla asebenzayo, amandla asabela kunye ne-power factor ziba yimpazamo. Xa iphase enye inikela ngamandla anophawu olubi, isixa esipheleleyo seephase ezintathu sisengabonakala sikholeleka.
Jonga ivoltage, i-current, amandla asebenzayo, amandla aphendulayo, ifactor yamandla kunye ne-phase angle kwiphase nganye. Umboniso wephasor unceda ekufumaneni iiphase ezitshintshileyo kunye nokujikiswa kwecala le-current. I-Schweitzer Engineering Laboratories idwelisa umboniso wephasor njengesixhobo sokumisa umsebenzi ukuze kuqinisekiswe i-polarity ye-CT kunye nokulungelelaniswa kweephase kwi- Amaxwebhu e-SEL-787. Imetha yeprojekthi okanye isixhobo sokuhlalutya umgangatho wamandla inokunika uthelekiso olufanayo xa isixhasa umbono wephasor.
Dibanisa i-Injection Yesibini noVavanyo oluSebenzayo lokuKhomba iNdlela
Ukuphinda ujonge okwesibini kuhlola isekethe elandelayo ngaphandle kokuxhomekeka kumthwalo weziko. Iimilinganiselo ezaziwayo zomsinga nombane ziqinisekisa isikali sokufakwa kwemitha, ukwabiwa kwe-phase, uphawu lwamandla asebenzayo, ukwabiwa kweerjista kunye nexabiso elifunyenweyo yi-EMS.
Ukufakwa kwesibini kushiya icala eliphambili lomqhubi lingavavanywanga. Ukubeka iiledi kufutshane nemitha kunokudlula iitheminali zasemkhenkceni kunye neendlela zeekhebula. Phawula indawo yokufaka kunye nenxalenye yesekethe egqunyiweyo luvavanyo.
Uvavanyo olubukhoma olupheleleyo luvala umsantsa oseleyo:
- 1. Yimisa umthwalo ozinzileyo wesakhiwo okanye imeko elawulwayo yombane oyintloko.
- 2. Thelekisa isigaba ngasinye sisixhobo sokulinganisa esilungisiweyo.
- 3. Rekhoda imeko esisiseko yamandla e-PCC kunye nomgangatho wemitha.
- 4. Khupha umyalelo omncinci wokutshaja we-BESS uze ubuyele ku-zero.
- 5. Khupha umyalelo omncinci wokukhupha onobukhulu obufanayo.
- 6. Thelekisa umyalelo, amandla e-PCS kunye nentshukumo ye-PCC kwisiseko sexesha esinye.
- 7. Phazamisa isignali yemitha ekhethiweyo uze uqaphele ixesha lokuphelelwa, i-alam, ukubuyela emva kunye nokuchacha.
Umyalelo wokuqala kufuneka nje ungaphazamiseki kuhambo lomthwalo oqhelekileyo kunye nokusombululwa kwemitha. Kwisiza esinye oko kunokuba yi-10 kW; kwesinye, i-20 kW isanyamalala ngaphakathi kokuguquguquka kwemveliso. Le nkqubo imisela ixabiso elisebenzisekayo lisuka kwiprofayili yomthwalo wokwenene, amandla ebhetri akhoyo kunye neemeko zovavanyo.
Kwiinkqubo zeMegSolid ezidityaniswe nezixhobo zokutshintsha zombane kunye neemitha zabanye abantu, uphononongo lwe-interface lunokulungelelanisa icala le-CT, ukulinganisa kwe-protocol kunye nesicwangciso esivunyiweyo sokubuyela umva phambi kokuba ukulawulwa okuzenzekelayo kukhutshwe.
Beka zonke iindlela zokuhamba kovavanyo kwisikhathi esinye
I-PCC meter inokuvelisa isiphumo esomlinganiselo emva kokuba i-PCS isabele. Xa i-EMS, i-meter kunye neewotshi ze-SCADA zingahambelani, i-trend ethunyelweyo inokudibanisa umyalelo nempendulo engeyiyo. Oko kunokubuyisela iqela kwakhona kwi-wiring ebikuchanekile ngalo lonke ixesha.
Phambi kwenyathelo lokusebenza ngqo, thelekisa ixesha eliboniswayo kwimetha, iPCS, iEMS kunye nehistorian. Rekhoda umthombo wexesha kunye nemeko yokulungelelanisa kwisixhobo ngasinye. I-NTP, i-SNTP, i-PTP, i-GPS kunye neewotshi zasekuhlaleni zivela kwiinkqubo zemizi-mveliso; indlela efunekayo ixhomekeke kubuchule bezixhobo kunye nokucaca kovavanyo.
Unyamezelo lwexesha luxhomekeke kwimpendulo yolawulo, isantya sokuhlaziywa kwemitha kunye nesisombululo sobungqina. Inkqubo ichaza umahluko ovumelekileyo, isithuba sokuthatha isampulu, iwindow yokumiliselwa komyinge kunye nommandla wexesha. Isiganeko esaziwayo kufuneka sivele ngexesha elilindelekileyo kuko konke ukurekhoda. Ukuba uhlalutyo lusebenzisa ulungiso lwexesha, ingxelo igcina zombini i-timestamp yoqobo kunye nalo lungiso.
I- Uluhlu lweendawo ze-BESS SCADA kufuneka kusetyenziswe amagama eethagi, iiyunithi kunye neendawo zomgangatho ezifanayo njengakwitrace yokucomishinisha. I- Isakhiwo sonxibelelwano se-BMS ne-EMS Ichaza ukuba zeziphi imida ezihlala zingaphakathi xa isignali ye-PCC iphelelwa lixesha okanye inyamalala.
Hlalutya ipateni phambi kokutshintsha iintambo zombane.
Thatha amaxabiso esigaba ngasinye phambi kokuba ususe iintambo okanye utshintshe isoftware. Ipatheni idla ngokunciphisa intsilelo ngokukhawuleza kunexabiso lilonke le-kW.
| Isiphumo kwisiza | Qala ngokujonga | Ubungqina buyafuneka emva kokulungiswa. |
|---|---|---|
| Zonke iimpawu ezintathu zamandla ziba negatifi ngexesha lokungeniswa okwaziwayo kogridi. | Isalathiso se-CT okanye uphawu lomitha jikelele | Irekhodi lokuqheliswa ngokwasemzimbeni kunye negalelo elihle kwisivumelwano esivunyelweneyo |
| Esinye isigaba sisilumkiso, ngelixa ezibini zisisikhokelo. | I-CT enye ebuyiselwe umva okanye ukudityaniswa okungachanekanga kwe-voltage ne-current | Irekhodi elilungisiweyo lephasor namandla ngesigaba ngasinye |
| I-Current ne-kW zahluka ngomlinganiselo ozinzileyo. | CT kwimeko yezikolo zamabanga aphantsi/aphakamileyo, isalathiso se-1 A/5 A okanye umphindi-phindi okhutshelweyo | Iplanga yegama, useto kunye nokuthelekiswa komsinga wereferensi |
| I-kW iyonke iphantse ibe ziro phantsi komthwalo olinganiselweyo omkhulu. | Igalelo lezigaba liyatsalwa | Ukuqinisekisa uphawu lwesigaba kunye ne-engile yesigaba |
| I-power factor ibonakala ingaqhelekanga ngelixa i-current iqhelekile. | I-voltage yomgca ifakwe kwitshaneli engachanekanga yomsinga. | Ukuqinisekiswa kokudityaniswa kwe-voltage ne-current |
| I-PCS iyasabela kodwa i-PCC itshintsha kamva okanye ayishukumi kangako. | Umda ongachanekanga, ukungangqinelani kwe-URL yendawo eshukumayo okanye i-timestamp | Inyathelo elilawulwayo elihambelana nesingqi, kuboniswe indawo yesingqi. |
| Ukunciphisa ixesha eliphezulu lamandla kujikeleza usukelo. | Ukulibaziseka kwesignali, ukucocwa okuphindwe kabini, impazamo yophawu okanye i-deadband engafanelekanga | Ixesha elitsha lokuhlaziya elikrwada kunye nendlela ezinzileyo evaliweyo |
| Isibonisi semitha nexabiso le-EMS azivumelani. | Ubhaliso, ulandelelwano lweebhayithi, iyunithi okanye imephu yokulinganisa | Uthelekiso olucacileyo, olufanayo, nolwe-EMS |
Amandla akhutshwayo anophawu olubi anokuthetha ukuthunyelwa ngaphandle kokwenene, i-polarity ye-CT ejikisiweyo okanye umgaqo wesoftware ojikisiweyo. Emva kotshintsho ngalunye, phinda inyathelo elilawulwayo elifanayo kwaye ugcine umkhondo osileleyo ecaleni kwesilungisiweyo.
Apho i-ESSA Cabinet iphela khona kwaye kuqala ukulinganisa kwesiza.
Kumzekelo wefektri we-420 kW, i-ESSA0100B-0215 idityaniswa nebhodi engundoqo ye-400 V esele ikho ukuze kuncitshiswe umthwalo ophezulu. Amandla ayo ashicilelweyo e-AC angama-100 kW kunye namandla ombane angama-215.04 kWh achaza le khabhinethi. Indawo ye-PCC, i-orientation ye-CT kunye nokulinganisa kwemitha yasiza zihlala ziyinxalenye yenkqubo yombane efakiweyo.
Ukuphicothwa kwesigaba ngasinye kufumanisa amandla akhutshwayo angalunganga kuwo omathathu amagaba angenayo phantsi kokungeniswa okwaziwayo kwegridi. Iiratio ezikwipleyiti yegama ziyahambelana namanani acwangcisiweyo, nto leyo etsala ingqwalasela kwicala lokumiswa ngokwasemzimbeni. Iintolo ze-CT ziyachasa icala eliboniswe kumzobo ovunyiweyo.
Iqela lombane liyalungisa i-orientation ye-CT phantsi kwenkqubo yokwahlula evunyiweyo. Ukuphinda inyathelo lokukhupha i-20 kW ngoku kushenxisa ukungeniswa kwe-PCC kuye kutsho kwi-400 kW, kwaye inyathelo lokutshaja liyinyusa ngakumbi. La manani abonisa ulwalathiso kuphela. Ukuhamba komthwalo wasiza, iilahleko, ukuchaneka kwemitha kunye nokulibaziseka kokuthatha isampulu zibeka umda wokuthelekisa wokwenene.
| Isimo sovavanyo | Isiphumo esisecaleni sekhabhinethi | Utshintsho olulindelekileyo lwe-PCC kunye nomthwalo ozinzileyo |
|---|---|---|
| Umyalelo ongabikho | Amandla asebenzayo ngaphakathi kwe-bandi yesithro ezichaziweyo | Ukungenisa olusisiseko |
| Intlawulo elawulwayo | Ibhetri iyamunca amandla e-AC | Ukungenisa luyenyuka |
| Ukukhutshwa okulawulwayo | Ibhetri inika umbane we-AC. | Ukungenisa kwehla |
| Idatha yemitha idala okanye ayikho | I-EMS ilandela isicwangciso esingumgcini esivunyiweyo. | I-alam, imeko yomgangatho wedatha kunye nokubuyiselwa kwemeko zirekhodiwe. |
I- Inkqubo yovavanyo lokwamkelwa kwendawo ye-BESS Iyadlulisa isiphumo sokulungiswa kwemitha kukhupho olubanzi lwendawo. Kufuneka ibhekisele kwimitha efanayo, iseti ye-CT, ifayile yezicwangciso kunye nomkhwa.
Apho iMetering PASS iphela khona
I-PASS yokulinganisa epheleleyo igubungela uchungechunge lokulinganisa olukhankanyiweyo phantsi kwendlela yovavanyo echaziweyo. Ukwamkelwa komthamo kunefestile ye-SOC eyahlukileyo, isetpoint yamandla, isiseko sobushushu, unyango oluncedisayo kunye nendawo yokulinganisa ye-AC. Uvavanyo lomgangatho wamandla lusebenzisa indawo yaso yokubeka i-analyzer kunye neemeko zokusebenza. Ukuqhutywa koluntuqelo kamva kurekhoda ii-alam, ukuncitshiswa kunye nokufumaneka.
I- Uvavanyo lomthamo we-BESS yorhwebo Iquka ukubalwa kwamandla. Ukutshintshwa kwemitha kamva, utshintsho lwe-CT okanye ukucwangciswa ngokutsha kwe-EMS kuvula kwakhona iimvavanyo zemitha ezichaphazelekileyo, nokuba isixhobo sebhetri asitshintshwanga.
Ngethuba lokunikezela, umqhubi ufuna iireferensi ezintathu ezifanayo: I-PCC meter ne-CT sethu efunyenweyo, iisetingi ezivunyiweyo kunye nerekhodi yesoftware, kunye novavanyo lokulinganisa olupheleleyo olutyikityiweyo.
Isignali esecaleni kwekhabhathi kunye nendlela yokusebenza ekhutshiweyo kufuneka zihambelane nezo zikhokelo zintathu.
Imibuzo Ebuzwa Rhoqo
1. Kwenzeka ntoni ukuba i-polarity ye-BESS CT ijikisiwe?
Ubungakanani bangoku bunokubonakala buqhelekile ngelixa amandla asebenzayo enophawu oluchaseneyo. Isilawuli sokunciphisa i-peak okanye esingenayo i-zero-export sinokuthi ke siqhube umyalelo ngendlela engeyiyo. Bamba i-run uze ulandelele icala ukusuka kwiimpawu ze-CT ukuya kutsho kwi-tag ye-EMS.
2. Ingaba i-polarity ye-CT ejikisiweyo ingabangela ukunyuka kokungeniswa kwegrid ngexesha lokukhupha i-BESS?
Ewe. I-PCS inokwenza ukukhutshwa okuceliweyo ngelixa i-PCC meter okanye i-EMS iyixela ngophawu oluchaseneyo. Phinda inyathelo elincinci lokutshaja nokukhulula phantsi komthwalo ozinzileyo uze ubukele ukuba ukungeniswa kwegridi kuhamba ngaliphi icala.
3. Ipolyarithi ye-CT kufuneka ihlolwe njani ngokukhuselekileyo?
Abasebenzi bombane abaqeqeshiweyo kufuneka basebenze ngokwemanyuwali ze-CT nezemitha, inkqubo yokwahlula isiza kunye nemithetho yombane yasekuhlaleni. I-secondary ye-CT yesiqhelo enogunyaziweyo kufuneka ihlale ivaliwe ngokusebenzisa amalungiselelo achaziweyo okwenza i-shorting okanye ovavanyo. Ukuqinisekiswa kwecala lokuhamba umbane kulandela emva kokuba umjikelo wombane ubuyiselwe ngokukhuselekileyo.
4. Ingaba ukutofwa kwesibini kungqina icala le-CT efakiweyo?
Ukufakwa kwesibini kugubungela iindawo zokufaka ezilandelayo, ukulinganisa, ukumiselwa kwezigaba, iirejista kunye nonxibelelwano ezibandakanyiweyo ukusuka kwindawo yokufaka. Indlela ephambili ngokusebenzisa i-CT ke ize kumva kuvavanyo oluyintloko okanye olulawulwayo lomthwalo ophilayo lwendlela efakiweyo.
5. Impazamo yomlinganiselo we-CT ifunyanwa njani ngexesha lokuqaliswa kwe-BESS?
Qala nge-nameplate ye-CT kunye nezicwangciso zokuqala nezesibini zemitha. Emva koko, jonga i-input ye-1 A okanye ye-5 A, iiyunithi zeprotocol kunye ne-EMS multiplier, uzithelekise nomlinganiselo wogalelo owaziwayo kwifase nganye. Impazamo ye-multiplier engaguqukiyo idla ngokubonisa umlinganiselo okanye i-double scaling.
6. Yintoni impazamo yokunxulumana kwezigaba ze-CT?
Imitha isebenzisa umbane we-phase enye, kodwa ivoltheji yayo ivela kwenye. Ii-Amperes zisenokubonakala zikholeleka, kodwa ii-kW, ii-kvar, i-power factor kunye ne-phase angle aziya kuvumelana. Ukuqwalasela izifundo ze-phase nganye okanye ukusebenzisa umbono we-phasor kwenza ukungangqinelani kube lula ukubonwa.
7. Imeitha ye-PCC kufuneka ibekwe phi ukuze kuncitshiswe umthamo ophezulu kwisiza sonke?
Ukuze kulawulwe yonke isiza, imitha idla ngokubekwa apho ibona utshintshiselwano lwegridi lwazo zonke iimvuzo ezifanelekileyo, abaphathi be-PV ne-BESS. Umzobo womgca omnye uchaza indawo kanye. Imitha efakwe kuphela kumphathi webhetri ixela amandla akwikhabhathi, hayi isixa samandla angeniswa kwisiza sonke.
8. Kutheni imitha ye-PCC nemitha ye-PCS zibonisa amandla ahlukileyo?
Iimitha ezimbini zikwiindawo zombane ezahlukeneyo. Imithwalo phakathi kwazo, ilahleko yetransformer nekhebula, izixhobo zokuncedisa, ukuchaneka kunye nexesha losampuli zonke ziyayitshintsha le ntsebenzo yokuthelekisa. Uvavanyo luchaza umahluko olulindelekileyo kulungiselelo olufakelweyo.
9. Yeyiphi imingcele yokunyamezela ukungangqinelani kwexesha ekufuneka isilingo siyisebenzise?
Misa umda wokunyamezela usuka kwimpendulo yolawulo, isantya sokuhlaziywa kwemitha, isithuba sokumiliselwa komyinge kunye nokucombuluka komkhwa. Isiphumo sikwafuna umthombo wexesha, ummandla wexesha kunye nokuphambuka okulinganisiweyo. Umjikelo okhawulezayo wokuthumela kwisifunzi esisecaleni kunye nomkhwa wamandla okhaphayo azisayi kusebenzisa umda wexesha ofanayo.
10. Ingaba imitha ingabonisa amaxabiso akholisayo kodwa isenokuba ifakwe ngokungachanekanga?
Ewe. Ii-phase ezimbini ezichanekileyo zinokufihla i-phase enye ejikisiweyo, kwaye ukudityaniswa kakubi kwe-voltage ne-current kusenokukhiqiza ii-amperes ezikholelekayo. Funda i-voltage, i-current, i-kW, i-kvar, i-power factor kunye ne-phase angle kwipase nganye phambi kokuba uthembe isixa-sixa.
11. Yintoni ekufuneka ibe kwingxelo yokuqaliswa kokumiselwa kwe-BESS metering?
Irekhodi lichaza indawo yemitha kunye nenombolo yayo yesiriyali, iseti ye-CT kunye nomlinganiselo, ipolarity, ukudityaniswa kwe-phase, iingeni ze-voltage, uhlaziyo lwezicwangciso, imephu yeregista, ukulinganisa kwe-EMS, umgaqo weempawu kunye nemvelaphi yewotshi. Yongeza imilinganiselo yereferensi, iitrendi zokutshaja/zokukhupha okungaphakelwanga kunye nokukhululwa okunophawu.
12. Ingaba i-BESS metering PASS ingqina i-AC kWh esetyenzisiweyo?
Hayi. Isiphumo sokulinganisa siqinisekisa uchungechunge lokulinganisa oluchaziweyo. Uvavanyo lwamandla asetyenziswayo luseta iziphelo ze-SOC, umda we-AC, inqanaba lamandla, isiseko sobushushu, unyango oluncedisayo, isithuba sesampulu kunye nendlela yokubala.
13. I-ESSA0100B-0215 ingena njani kuvavanyo lokulinganisa?
Ikhabhathi izisa ujongano lwe-400 V kunye namandla e-AC aqikelelwe kwi-100 kW kule projekthi. Uvavanyo lwasendaweni luhlanganisa imitha ye-PCC yangaphandle, ii-CTs, uqhagamshelo lwebhodi yokutshintsha, ukumiselwa kwemephu ye-EMS kunye nempendulo yomjikelo ovaliweyo efakelweyo ejikeleze yona.
