Iiyunithi zamandla e-Thermal, njengeyona nto iphambili yokulawula i-frequency regulation resource ebonelela nge-AGC (i-Automatic Guided Vehicle) iinkonzo ezincedisayo, zinengxaki yokusilela: ixesha elide lokuphendula (ngokuqhelekileyo kuluhlu lwemizuzwana yamashumi); isantya solawulo olucothayo (izinga lolawulo olusemgangathweni (MWmin) kwiiyunithi zamandla obushushu alidluli kwi-3% yamandla alinganisiweyo); kunye nokuchaneka kokulawulwa kakubi (ukutenxa okuvumelekileyo kwiiyunithi zamandla obushushu yi-1% yamandla alinganisiweyo).
Nangona kunjalo, ukusebenzaiinkqubo zokugcina amandla ebhetringokubambisana neeyunithi zamandla ashushu ukuphendula kwimiyalelo ye-AGC inokusebenzisa ngokupheleleyo iingenelo zeenkqubo zokugcina amandla: ixesha elifutshane lokuphendula (<100ms), fast regulation rate (regulation time from no-load to full-load less than 20ms), and high regulation accuracy. This improves the overall regulation performance index K of the unit while avoiding the need for large-capacity energy storage systems, enabling the project to achieve better economic benefits.
Imigaqo esisiseko kunye nenkqubo yolawulo oludityanisiweyo lobushushu kunye nokugcinwa kwamandla:
I-1) Umbane, ukugcinwa kwamandla kunye neeyunithi zamandla e-thermal zingasebenza ngokuhambelana ekupheleni koxhumo lwegridi, ukusebenzisana kunye nokulandelela imiyalelo yokuthunyelwa kwe-AGC, ngaloo ndlela kuphuculwe kakhulu ukusebenza kommiselo jikelele;
2) Ngaphandle kokutshintsha i-AGC yoqobo yolawulo lweyunithi yamandla obushushu, yakha umyalelo ophumayo wenkqubo yokugcina amandla ngokusekwe kumahluko phakathi komyalelo we-AGC kunye nelokwenyani{1}}lokuphuma kwexesha leyunithi yamandla obushushu, kwaye wenze umsantsa wokufunwa kwamandla obangelwa ngumahluko ngokusebenzisa iimpawu zolawulo lwamandla okukhawulezayo nezichanekileyo zenkqubo yokugcina amandla.
3) Njengoko imveliso yeyunithi yamandla e-thermal iphendula kumyalelo we-AGC kwaye isondela kuyo, imveliso yenkqubo yokugcina amandla ihoxiswa ngokufanelekileyo de iyunithi yamandla e-thermal ekugqibeleni ithathe imveliso yomyalelo we-AGC. Ingabonwa ukuba ixesha eliphezulu{2}lokusebenza kwamandla enkqubo yogcino lwamandla ngexesha lohlengahlengiso olunye lwe-AGC likumyalelo wemizuzu emi-1 ukuya kwemi-2.
Njengoko kunokubonwa kule nkqubo ingentla, amandla aphezulu okukhutshwa kwe-BESS ngumahluko phakathi komyalelo we-AGC kunye nemveliso yangoku yeyunithi yamandla e-thermal. Imfuno yokusebenza igxininisa amandla aphezulu{1}, akhawulezayo, kunye nolawulo oluchanekileyo, ngelixa imfuno yomthamo ilinganiselwe, iyenza ibe sisicelo samandla esiqhelekileyo{2}} sohlobo lwe-BESS. Nangona umthamo kunye namandla e-BESS inokulungiswa ngokuthe ngqo ngokusekwe kwi-frequency yegridi kunye neempawu zokuguquguquka kwesiginali yempazamo yolawulo kwingingqi, kuqwalaselwe ngokubanzi impembelelo yokuguquguquka komthwalo, imigaqo yokuhambisa igridi ye-AGC, kunye nokuphucula izibonelelo zoqoqosho, uninzi lweenkqubo zoyilo lwangoku zisekwe kuhlalutyo kunye nedatha yeenkcukacha-manani zeyunithi yomyalelo weyunithi, ukulandelela ngokupheleleyo i-AGC yeyunithi, ukulandelela i-AGC edlulileyo. imiyalelo yokuthumela kwaye, ngexesha lokusebenza, ukugcina ibhetri ye-SOC malunga ne-50%.
Ngaphaya koko, ngokusekwe kwimfuno yobugcisa ukuba ubungakanani botshintsho lwamandla eyunithi yamandla e-thermal yi-3%P ngomzuzu, kwaye njengoko utshintsho lomyalelo we-AGC luba ngomzuzu-ngomzuzu{2} womjikelo, kuqwalaselwe inkqubo yogcino lwamandla e-2C kwi-3% yeyunithi yamandla e-thermal elinganiselweyo yamandla e-P isengqiqweni ngakumbi.
Umgaqo osisiseko uboniswe kumzobo.
Kwiinkqubo ezidibeneyo zokushisa okushushu kunye nokugcinwa kwamandla, i-BESS (iNkqubo yokuGcina Amandla e-Boiler) iindlela zokudibanisa igridi ngokubanzi ziwela kwiindidi ezimbini: enye isebenzisa umthamo we-surplus yesityalo esikhoyo se-transformer encedisayo kwaye idibanise kwi-outlet ye-generator ngokusebenzisa i-booster yesibini yombane;
enye iqwalasela inyathelo elizimeleyo -phezulu isiguquli sokuqhagamshela ngokuthe ngqo inkqubo yokugcina amandla kwindawo yokuvelisa umbane. Zombini iindlela zoqhagamshelo zifuna ingqalelo kumgca omfutshane{2}}umthamo wesekethe kunye nokwahluka kweharmonic ukuqinisekisa ukusebenza ngokukhuselekileyo kweeyunithi zamandla akhoyo ashushu, iziguquli eziphambili, izitshisi zebhoyila, kunye neenkqubo ezincedisayo. Okwangoku, iskimu soqhagamshelo lomncedisi we-transformer wesityalo sixhaphake kakhulu.
Ngokuphathelele unxibelelwano kunye neenkqubo zokulawula, zombini i-RTU (i-Remote Control Unit) kunye ne-DCS (iNkqubo yoLawulo oluSasazo) kufuneka iguqulwe ngokufanelekileyo, njengoko kuboniswe kuMfanekiso.
Uphuculo lobugcisa besixhobo kunye nemisebenzi esisiseko ibandakanya:
I-RTU (iYunithi yeNgingqi) iya kongeza i-BESS (iNkqubo yokuGcinwa kwaMandla) iphakheji yokulinganisa amandla, eya kudibaniswa kunye nexabiso lomlinganiselo wemveliso ye-generator kwaye idluliselwe kwiziko lokuhambisa igridi yamandla njengesiseko sovavanyo lwe-AGC (UkuLawulwa kweGain oluzenzekelayo). Ijelo elitsha lonxibelelwano kunye ne-BESS liya kusekwa ukunika imiyalelo ye-AGC kwaye, njengoko kuyimfuneko, ukuhambisa imveliso kunye nolwazi lwesimo sombane odibeneyo oshushu kunye nenkqubo yokugcina amandla kwi-BESS yovavanyo lokuqala lwe-AGC yolawulo lokusebenza kunye nohlalutyo lwenzuzo kwindawo.
I-DCS (i-Distributed Control System) iya kuseka umjelo omtsha wonxibelelwano kunye ne-BESS ukuhambisa imiyalelo ye-AGC, impendulo yemveliso ye-generator, izibonakaliso zomthwalo we-generator, i-generator ye-AGC yokuvula impendulo, iiflegi zesenzo solawulo lwamaza ombane aphambili, imida yemveliso ye-generator, kunye nemida yokulawula i-generator.
I-BESS, esekelwe kwimiyalelo ye-AGC kunye neyona -ixesha lokukhutshwa kweyunithi yejeneretha, idityaniswe ne-SOC yebhetri yenkqubo yokugcina amandla, yakha imiyalelo yamandla yenkqubo yokugcina amandla ukuphumeza ukulawulwa kwamandla okukhawuleza kunye nommiselo, njengoko kubonisiwe kumfanekiso.
Umfanekiso: Umlawuli we-AGC oncedisayo we-BESS
Kwinkqubo edityanisiweyo yolawulo lobushushu kunye nokugcinwa kwamandla, inkqubo yokugcina amandla iqulathe i-PCS+inyathelo{1}}isikhongozeli se-transformer ephezulu, isikhongozeli sebhetri,{2}}isikhongozeli sokufikelela kumbane ophezulu, kunye nesikhongozeli sokubeka iliso sasekhaya. Phakathi kwazo, i-PCS+inyathelo-phezulu isikhongozeli se-transformer sigcina iyunithi engundoqo yeringi, inyathelo-phezulu isiguquli, kunye ne-PCS. Iqhagamshelwe kwisingxobo sebhetri kwicala le-DC, kwaye kwicala le-AC, idityaniswe ngokunxuseneyo nenkqubo yogcino lwamandla ekufutshane ngaphambi kokuba iqhagamshelwe kwi-transformer yenkonzo yesityalo nge-central switch cabinet.
Ekuphunyezweni okuthe ngqo kweprojekthi, iinkcukacha zoyilo kunye nokuguqulwa zinokwahluka, kodwa zonke kufuneka zihambelane nomgaqo wokunciphisa impembelelo kwiiyunithi zamandla obushushu boqobo kwaye akufanele zibeke nayiphi na ingozi yokhuseleko ekusebenzeni okuqhelekileyo kwe-DCS kunye neeyunithi.
Ngeemfuno ezingqongqo zomgangatho wamandla, ngakumbi ukonyuka okukhawulezayo kwisakhono semithombo yamandla ahlaziyekayo efana namandla omoya kunye nelanga, igridi yamandla inemfuno ekhulayo-ekumgangatho ophezulu wemithombo yolawulo lwamaza. Nangona kunjalo, uhlengahlengiso olukhulu rhoqo-lomlinganiselo we-AGC (Ulawulo oluzenzekelayo lweGain) ngamayunithi ombane oshushu lunokuba nefuthe elibi kwisixhobo kwaye luthintele ukusebenza okuzinzileyo. Ngaphaya koko, i-ultra-i-low retrofitting retrofitting more limiter the regulability rate of thermal power units, ukunciphisa ummiselo wokusebenza kwesalathiso K. Ngoko ke, umbane odityanisiweyo we-thermal kunye ne-energy storage frequency regulation systems zibonelela ngeenzuzo zobugcisa ezithe ngqo kunye neenzuzo ezinkulu kwezoqoqosho.
Ukuthatha iprojekthi edibeneyo yokugcinwa kwamandla okushisa kunye nokugcinwa kwamandla kuMntla-ntshona weChina njengomzekelo, ngaphambi kokongezwa kokugcinwa kwamandla, isalathisi sokusebenza kwe-AGC yolawulo lwe-K yeeyunithi zamandla ezizimeleyo ze-thermal ukusuka kwi-1.97 ukuya kwi-2.62. Emva kokongeza ukugcinwa kwamandla, umbane odibeneyo we-thermal kunye nenkqubo yokugcina amandla uphucule oku kwi-4.95 kwi-5.91; iindleko zembuyekezo nazo zonyuka ukusuka ngaphantsi kwe-10,000 yuan/ngosuku ukuya phantse kwi-110,000 yeyuan/ngosuku.
Nangona kunjalo, ngexesha lomthwalo ozinzileyo, imfuno yegridi yezibonelelo zolawulo lwe-frequency inomda ophezulu, kwaye indawo yemarike yesi sicelo iya kucudiswa ngokukhawuleza. Ngenxa yokwamkelwa komgaqo othi "zero{1}}sum" kunye neempembelelo zemigaqo-nkqubo kunye neendlela ezinxulumene nokuhanjiswa kwenzala, ingeniso yeprojekthi, ingakumbi abanini benkqubo yogcino lwamandla, iphantsi kokungaqiniseki okuthile.