Thermal magetsi mayuniti, seyekutanga frequency regulation sosi inopa AGC (Automatic Guided Vehicle) ebetsero masevhisi, anotambura kubva akati wandei anokanganisa: nguva refu yekupindura (kazhinji mumakumi emasekonzi renji); kunonoka mutemo mwero (iyo yakajairwa regulation rate (MWmin) yemayuniti emagetsi ekupisa haipfuure 3% yesimba rakatemerwa); uye kusarongeka kwekutonga kwakashata (kutsauka kunobvumirwa kwemagetsi ekupisa ndeye 1% yesimba rakayerwa).
Zvisinei, kushandabhatiri simba rekuchengetedza maitiroyakabatana nemagetsi emagetsi ekupindura kumirairo yeAGC inogona kukwidziridza zvakanakira zvesimba rekuchengetedza masisitimu: nguva pfupi yekupindura (<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.
Iwo masikirwo emisimboti uye maitiro eyakasanganiswa yekupisa uye simba rekuchengetedza frequency regulation:
1) Magetsi, chengetedzo yesimba uye magetsi emagetsi emagetsi anogona kushanda anoenderana kumagumo ekubatanidza grid, achishanda pamwe chete kuteedzera AGC yekutumira mirairo, nekudaro ichivandudza zvakanyanya kuita kwese kwemutemo;
2) Pasina kushandura yekutanga AGC kutonga kwesimba rinopisa simba, gadzira rairo rinobuda resisitimu yekuchengetera simba zvichienderana nemusiyano uripo pakati pekuraira kweAGC uye chaiyo-nguva yekubuda kwechikamu chemagetsi ekudziya, uye gadzirisa gaka rekuda kwemagetsi rinokonzerwa nemusiyano nekushandisa kukurumidza uye kwakaringana kutonga masimba esimba rekuchengetedza simba.
3) Sezvo kubuda kweiyo inopisa simba unit inopindura kune iyo AGC kuraira uye ichiswedera kwairi, iyo inobuda yesimba rekuchengetedza sisitimu inodzoswa zvinoenderana kusvikira iyo yekupisa simba unit pakupedzisira yatora kuburitsa kweiyo AGC yekuraira. Zvinogona kuonekwa kuti -simba rekushanda nguva yesimba rekuchengetedza simba panguva imwe chete yekugadzirisa AGC iri pahurongwa hwe1 kusvika kumaminitsi maviri.
Sezvinoonekwa kubva pane zviri pamusoro, iyo yakanyanya kuburitsa simba reBESS ndiyo mutsauko uripo pakati peiyo AGC yekuraira uye yazvino kubuda kweiyo inopisa simba unit. Chinodiwa chekushanda chinosimbisa masimba epamusoro-, kukurumidza, uye nemazvo, ukuwo simba rinodiwa riri shoma, zvichiita kuti ive simba remazuva ose-pamhando yeBESS application. Kunyangwe hukuru uye simba reBESS rinogona kunyatso gadziridzwa zvichienderana neiyo grid frequency uye kuchinjika kwechiratidzo chekudzora chikanganiso mudunhu, tichinyatsofunga nezvekukanganisa kwekuchinja kwemutoro, gidhi AGC yekutumira nheyo, uye nekugadzirisa mabhenefiti ehupfumi, mazhinji azvino magadzirirwo maitiro akavakirwa pakuongorora uye nhamba yedata yemirairo0 kusvika padanho reAGC rapfuura% kupfuura AGC. kutumira mirairo uye, panguva yekushanda, kuchengetedza bhatiri SOC yakatenderedza 50%.
Uyezve, zvichibva pane zvinodiwa zvehunyanzvi zvekuti simba repamusoro rekuchinja kwesimba remagetsi rinopisa rive 3%P paminiti, uye sezvo shanduko yemirairo yeAGC inowanzoitika paminiti-ne-maminiti ekutenderera, kugadzira 2C yekuchengetera simba pa3% yesimba rakatemerwa remagetsi P rinonzwisisika.
Nheyo yekutanga inoratidzwa mumufananidzo.
Mukusanganiswa kwesimba remagetsi uye masisitimu ekuchengetedza simba, BESS (Boiler Energy Storage System) nzira dzekubatanidza grid kazhinji dzinowira mumapoka maviri: imwe inoshandisa iyo yakasara yesimba iripo yechirimwa yekubatsira transformer uye inoibatanidza kune inobuda jenareta kuburikidza neyechipiri voltage booster;
imwe inogadzirisa nhanho yakazvimirira{{0}kukwira netransformer kuti inobatanidza zvakananga sisitimu yekuchengetera simba kune chinoburitsa jenareta. Nzira dzese dzekubatanidza dzinoda kutarisisa kupfupi-kusimba kwedunhu uye kusiyana kweharmonic kuti ive nechokwadi chekushanda kwakachengeteka kwemayuniti emagetsi emagetsi aripo, matransformer makuru, maboiler actuators, uye masisitimu anobatsira. Parizvino, chirimwa chekubatsira transformer yekubatanidza chirongwa chakanyanya kuwanda.
Nezvekutaurirana uye kutonga masisitimu, ese ari maviri eRTU (Remote Control Unit) uye DCS (Distributed Control System) inofanira kuchinjwa zvinoenderana, sezvakaratidzwa muFigure.
Iyo michina yekuvandudza tekinoroji uye yakakosha mabasa anosanganisira:
Iyo RTU (Regional Unit) ichawedzera BESS (Balanced Energy Storage System) yekuyera magetsi pasuru, iyo ichabatanidzwa nejenareta inobuda kuyerwa kukosha uye kuendeswa kune yemagetsi grid dispatch centre sehwaro hweAGC (Otomatiki Gain Control) ongororo. Nzira itsva yekutaurirana neBESS ichagadzwa kugovera mirairo yeAGC uye, sezvinodiwa, kufambisa zvakabuda uye mamiriro eruzivo rwesimba rakasanganiswa rekupisa uye simba rekuchengetedza simba kune BESS yekutanga AGC mutemo wekuita index K kuongororwa uye ongororo yekubatsira munharaunda.
Iyo DCS (Distributed Control System) ichagadzira nzira nyowani yekutaurirana neBESS kuendesa mirairo yeAGC, mhinduro yejenareta, zviratidziro zvejenareta, jenareta AGC activation mhinduro, jenareta rekutanga frequency regulation chiito mireza, jenareta inobuda miganho, uye jenareta regulation rate miganho.
BESS, zvichienderana nemirairo yeAGC uye-nguva chaiyo yekubuda kwejenareta unit, yakasanganiswa neSOC yesimba rekuchengetedza simba bhatiri, inogadzira mirairo yesimba rekuchengetedza simba kuti iwane kukurumidza kutonga kwesimba uye mirairo, sezvakaratidzwa pamufananidzo.
Mufananidzo: BESS Mubatsiri AGC Controller
Muchigayo chemafuta uye simba rekuchengetedza ma frequency regulation system, sisitimu yekuchengeta simba kazhinji ine PCS+step-transformer mugaba, chigaba chebhatiri, chigaba chepamusoro-chemagetsi, uye chigaba chekutarisisa chiri munharaunda. Pakati pazvo, PCS+nhanho-yepamusoro simbi yetransformer inogara ring main unit, step-transformer, uye PCS. Iyo yakabatana nebhatiri chigadziko padivi reDC, uye kudivi reAC, yakabatana nenzira yakafanana neyepadyo yekuchengetera simba system isati yabatanidzwa kune chirimwa sevhisi yekushandura kuburikidza nepakati switch kabati.
Mukuitwa kwakananga kweprojekiti, ruzivo rwemagadzirirwo uye gadziriso runogona kusiyana, asi zvese zvinofanirwa kutevedzera musimboti wekudzikisa kukanganisa pamagetsi ekutanga emagetsi ekupisa uye hazvifanirwe kuunza njodzi dzekuchengetedza kune yakajairika kushanda kweDCS nemayunitsi.
Nekuda kuomesesa kuri kuramba kuchidiwa pamhando yemagetsi, kunyanya kukurumidza kuwedzera kwesimba remagetsi emagetsi ezuva, gidhi remagetsi rine kudiwa kuri kuwedzera kwe-zvemhando yepamusoro yezviwanikwa zvekudzora frequency. Zvisineyi, kazhinji kacho-chikero cheAGC (Automatic Gain Control) kugadziriswa nemayuniti emagetsi anopisa kunogona kukanganisa michina uye kukanganisa kushanda kwakadzikama. Uyezve, ultra-low emission retrofitting inowedzera kudzikamisa mwero wemitemo yemayuniti emagetsi ekupisa, kuderedza regulation performance index K. Naizvozvo, integrated thermal power uye energy reserve regulation regulation systems zvinopa zvakananga technical mabhenefiti uye zvakati wandei zvakanakira hupfumi.
Kutora simba rinopisa uye simba rekuchengetedza simba rakasanganiswa purojekiti muNorthwest China semuenzaniso, isati yawedzerwa simba rekuchengetedza, iyo AGC mutemo wekuita index K yeakazvimirira magetsi emagetsi emagetsi kubva pa1.97 kusvika 2.62. Mushure mekuwedzera simba rekuchengetedza, iyo yakabatanidzwa inopisa simba uye simba rekuchengetedza simba rakagadzirisa izvi kusvika 4.95 kusvika 5.91; muripo wemuripo wakawedzerawo kubva pasi pe10,000 yuan/zuva kusvika panosvika 110,000 yuan/zuva.
Nekudaro, mukati menguva dzemutoro wakagadzikana, iyo grid yekuda kweiyo frequency regulation zviwanikwa ine muganho wepamusoro, uye nzvimbo yemusika yechishandiso ichi ichakurumidza kusvinwa. Nekuda kwekutambirwa kwemutemo we "zero-sum" uye kurudziro yemitemo nedzimwe nzira dzekugovera mhindu, mari yepurojekiti, kunyanya yevaridzi vesisitimu yekuchengetera magetsi, inoenderana nekumwe kusanzwisisika.