Ngenkqubela phambili ezinzileyo yolwakhiwo lweprojekthi yosasazo ye-UHV AC / DC, iziphumo zophando zothumelo lwamandla e-UHV kunye notshintsho lwetekhnoloji ziya zisanda, ezibonelela ngenkxaso eyomeleleyo yesayensi nezobuchwepheshe kulwakhiwo lweshishini le-Intanethi elikhokelayo lamandla ehlabathi elineempawu zaseTshayina.Ngophuhliso olukhawulezayo lwegridi yamandla, ingxaki yombane wendlela emfutshane ngokuthe ngcembe ibe ngumba obalaseleyo othintela ukukhula komthwalo wegridi yamandla kunye nophuhliso lwegridi yamandla.
Umthamo wokuqhawula we-high-voltage high-power circuit breaker ngqo uqinisekisa ukhuseleko kunye nokuthembeka kwenkonzo yexesha elide yemigca yokuhambisa amandla.Ukususela ngo-2016, ngokuxhomekeke kwinani leeprojekthi zesayensi kunye nobuchwepheshe be-State Grid Co., Ltd., i-International Internet Research Institute Co. iimveliso emva kweminyaka emihlanu yophando lwezenzululwazi.Oku kubaluleke kakhulu ukusombulula ingxaki yesiphaluka esifutshane esidlula umgangatho kunye nokuqinisekisa ukusebenza okukhuselekileyo nozinzo lwe-AC / DC UHV igridi yamandla edibeneyo
Uphando malunga nokuphuculwa kwezixhobo ze-circuit breaker ezijolise kwiimfuno eziphambili
Ngokweenkcukacha-manani ezifanelekileyo, ngexesha lexesha eliphezulu lokusetyenziswa kwamandla ehlobo lika-2020, ubuninzi be-short-circuit current yezinye izitishi kwiindawo zokusebenza ze-State Grid kunye ne-China Southern Power Grid ziya kufikelela okanye zidlule kwi-63 Ka.Ngokutsho manani State Grid Corporation of China, kwiminyaka yakutshanje, phakathi ukusilela 330kV nangaphezulu UHV substation izixhobo kwindawo yoshishino yenkampani, ngokutsho uhlobo izixhobo, iihambo fault kubangelwa igesi insulated metal evaliweyo switchgear ( I-GIS) kunye ne-hybrid distribution equipment (HGIS) i-akhawunti malunga ne-27.5%, i-circuit breakers i-akhawunti ye-16.5%, i-transformer kunye ne-transformers yangoku i-akhawunti ye-13.8%, Izixhobo zeSekondari kunye nebhasi zibalwa kwi-8.3%, i-reactor ibalwa kwi-4.6%, i- arrester ibalwa kwi-3.7% I-%, i-disconnector kunye nentonga yombane yenza i-1.8%.Ingabonwa ukuba i-GIS, i-circuit breaker, i-transformer kunye ne-transformer yangoku zizixhobo eziphambili ezibangela uhambo oluphosakeleyo, lubalelwa kwi-71.6% yohambo lulonke.
Uhlalutyo lwezizathu eziphosakeleyo lubonisa ukuba iingxaki zekhwalithi zoqhagamshelwano, i-bushing kunye nezinye iindawo kunye nenkqubo yokufakela kakubi yizona zinto ziphambili ezikhokelela kwiphutha le-breaker circuit.Ngexesha lokusebenza kwe-SF6 isaphuli sesekethe kumaxesha amaninzi, ukukhukuliseka kwangoku ngokuphindwe kaninzi kunomlinganiselo wangoku kunye nokunxitywa koomatshini phakathi konxibelelwano lwe-arc ehambayo kunye ne-static kuya kubangela ukudityaniswa koqhagamshelwano kunye nokuvelisa umphunga wesinyithi, oya konakalisa ukusebenza kwe-insulation. igumbi lokucima i-arc.
Ngexesha leSicwangciso seMinyaka eHlanu yeshumi elinesine, iPhondo laseQinghai liceba ukwandisa umthamo wezikhululo ezibini ezingama-500kV ukwandisa umthwalo okhoyo wendlela emfutshane ukusuka kwi-63kA ekhoyo ukuya kuma-80kA.Ukuba i-circuit breaker material iphuculwe, umthamo we-substation unokwandiswa ngokuthe ngqo, kwaye iindleko ezinkulu zokwandiswa kwe-substation zingagcinwa.Amaxesha okuqhawula amandla ombane aphezulu kunye nomthamo omkhulu we-circuit breaker ilawulwa ikakhulu kubomi boqhagamshelwano lombane kwi-breaker circuit.Okwangoku, uphuhliso lwabafowunelwa bombane kwi-high-voltage breakers circuit e-China lusekelwe ikakhulu kwindlela yobugcisa yezinto zobhedu ze-tungsten alloy.Iimveliso zoqhagamshelwano zombane ze-tungsten zobhedu zasekhaya azikwazi ukuhlangabezana neemfuno ze-Ultra-high kunye ne-ultra-high-high-high-voltage ubunjineli bezicelo zobunjineli ngokumalunga nokuxhathisa kwe-arc ablation kunye nokukhuhlana kunye nokumelana nokunxiba.Emva kokuba zisetyenziswe ngaphaya koluhlu lobomi benkonzo, zivame ukuphinda zingene, ezisongela ngokuthe ngqo ukusebenza kwe-insulation yezixhobo zamandla kwaye kubangela ingozi enkulu efihliweyo ekusebenzeni ngokukhuselekileyo kwegridi yamandla.Iimveliso zoqhagamshelwano zombane ze-tungsten zobhedu enkonzweni zinokuguquguquka okuphantsi kunye nobude, kwaye kulula ukusilela kunye nokwaphuka kwinkqubo yesenzo, kunye nokungabikho kokuchasana nokuchithwa.Ngethuba lenkqubo ye-arc ablation, ubhedu kulula ukuqokelela kunye nokukhula, okukhokelela ekufowuneni koqhagamshelwano.Ngoko ke, kubaluleke kakhulu ukuphucula ngokufanelekileyo izibonakaliso zokusebenza eziphambili zezinto zoqhagamshelwano zombane, ezifana nokunganyangeki, i-conductivity, i-anti welding, i-anti arc erosion, ukunciphisa izinga lokungaphumeleli kwe-breaker circuit kunye nokugcina ukusebenza okukhuselekileyo nokuzinza kwamandla. igridi.
U-Chen Xin, umlawuli weZiko lezinto eziphathekayo, i-Academia Sinica, uthe: "okwangoku, xa i-short-circuit current yegridi yamandla idlula umthamo wokuphulwa kwe-breaker circuit, i-short-circuit current idlula umgangatho, ochaphazela kakhulu. ukuthembeka kokusebenza kwegridi yamandla, kwaye ibeka phambili iimfuno eziphezulu zokwaphulwa kwamandla e-breaker sesekethe kunye nokumelana nokuchithwa koqhagamshelwano. ngoko ke kuyimfuneko ukuba kuqhutywe ulondolozo olubanzi, olukude ukuhlangabezana neemfuno zokugcinwa simahla zomjikelo wobomi benene bezaphuli-mthetho ze-SF6. I-arc yokuqhekeka kwangaphambili ngaphambi kokuvala, kwaye enye kukunxitywa komatshini emva kokuba imathiriyeli yoqhagamshelwano ye-arc ithambile emva kokukhutshwa.Kuyimfuneko ukubeka phambili indlela entsha yobuchwephesha ukuze kuphuculwe ngokusebenzayo izalathisi zokusebenza eziphambili zezinto zoqhagamshelwano zombane“Itekhnoloji kufuneka iphuculwe ngokuqhubekayo kwaye ihlaziywe.Sifanele sibambelele nkqi ezandleni zethu."Utshilo uChen Xin.
Xa sijongene nemfuno engxamisekileyo yokuhanjiswa kwamandla kazwelonke kunye nezixhobo zokuguqula ukuphuculwa kwezinto zoqhagamshelwano zombane zamacandelo angundoqo we-high-voltage circuit breaker, ukusuka kwi-2016, iZiko lezinto zombane ezitsha ze-Joint Research Institute, i-European Institute, iqela elihlangeneyo le-Pinggao kunye nezinye iiyunithi ngokudibeneyo ziqhube uphando lobugcisa kwi-graphene entsha eguqulwayo yobhedu esekelwe kwizinto zoqhagamshelwano zombane, kwaye iqhutywe intsebenziswano yamazwe ngamazwe ngokuxhomekeke kwi-European Institute kunye neYunivesithi yaseManchester, e-UK.Ukunceda ukuphucula ukusebenza kwe-high-voltage circuit breaker.
Iqela lisebenza kunye ukusombulula inani leengxaki zobugcisa
Ukuphuculwa kwe-Synergistic yokumelana ne-arc ablation kunye nokukhuhlana kunye nokumelana nokunxiba ngundoqo kwimveliso yobuninzi boqhagamshelwano lombane oluphezulu.Uphando kwizixhobo zokunxibelelana zombane ezikwi-high-voltage kumazwe angaphandle kwaqala ngaphambili, kwaye itekhnoloji ikhulile, kodwa itekhnoloji engundoqo ivaliwe kwilizwe lethu.Ngokuthembela kwinani leeprojekthi zenzululwazi kunye nezobuchwepheshe zenkampani, iqela leprojekthi, ngokubambisana ne-R & D yaphesheya, ukuqinisekiswa kovavanyo lohlobo lweqela lezoshishino kunye nomboniso wesicelo weenkampani zamandla ephondo, iseke iqela elincinane lezenzululwazi kunye nezobuchwepheshe "80 "Umqolo njengomzimba ophambili.
Amalungu angundoqo eqela athathe iingcambu kumgca wangaphambili we-R & D kwinqanaba le-R & D lesixhobo semathiriyeli kunye nenkqubo yokulungiselela;Kwinqanaba lemveliso yovavanyo, inkampani imise kumenzi ukusombulula iingxaki zobugcisa kwisiza, kwaye ekugqibeleni yaqhekeza ubunzima bokulinganisa phakathi kwezinto eziphathekayo, ukwakheka, ukwakhiwa kombutho kunye nenkqubo yokulungiselela, kwaye yenza impumelelo kwiteknoloji engundoqo. yokuphucula ukusebenza kwezinto;Kwinqanaba lovavanyo lohlobo, ndahlala kwiqela le-Pinggao kwisikhululo sovavanyo lwamandla ombane aphezulu, ndaxoxa neziko letekhnoloji yeqela lasePinggao kunye neqela lesikhululo samandla ombane aphezulu iR & D kangangezihlandlo ezininzi, ndalungiswa ngokuphindaphindiweyo, kwaye ekugqibeleni ndafumana ukutsiba okusemgangathweni ekuqhekezeni amandla aphezulu. I-voltage ephezulu yangoku ye-breaker circuit breaker ubomi bombane.
Ngemizamo eqhubekayo, iqela lophando lifumene ngempumelelo inkqubo yokuqulunqa ukusebenza okuphezulu kwegraphene eyomeleziweyo yobhedu esekwe kwizixhobo zokunxibelelana zombane, yaphulwe kubuchwephesha obuphambili begraphene yonxibelelwano lwezixhobo zombane zenkqubo yoyilo loyilo kunye ne-activation sintering infiltration ukubumba okudityanisiweyo, kwaye yaqonda imveliso. ukulungiswa kwezixhobo zoqhagamshelwano zombane ezininzi zegraphene ezilungisiweyo.Ngexesha lokuqala, iqela liphuhlise igraphene eguqulelwe kwi-copper tungsten alloy yoqhagamshelwano lombane kwi-sulphur hexafluoride breaker circuit ejongene ne-252kV nangaphezulu.Iimpawu zokusebenza eziphambili ezifana ne-conductivity kunye namandla okugoba zingcono kunezo zeemveliso ezisebenzayo, ziphucula kakhulu ubomi bombane we-high-voltage breaker circuit breaker, ukugcwalisa i-gap yobugcisa kwintsimi ye-graphene eguqulelwe kwi-high-voltage switch yombane izinto zoqhagamshelwano zombane. , Iphucula uphando oluzimeleyo lwenkampani kunye nophuhliso kwinqanaba eliphezulu langoku kunye nomthamo omkhulu wonxibelelwano lombane, kwaye inceda ukuqinisekisa ukusebenza okukhuselekileyo nokuthembekileyo kwenkqubo yamandla.
Iziphumo zeprojekthi zixhasa uyilo oluzimeleyo kunye nokusetyenziswa kwendawo ye-circuit breaker
Ukususela nge-29 ka-Okthobha ukuya kwi-31 ka-Okthobha, ngo-2020, ngokweskimu soqinisekiso oluchanekileyo oluqulunqwe liziko lophando elidibeneyo kunye neqela lePinggao emva kweengxoxo ezininzi, uhlobo olutsha lwekholamu evulekileyo ye-252kV / 63kA SF6 isaphuli sesekethe yeqela lePinggao esekwe kunxibelelwano lombane olufunyenwe ngempumelelo amaxesha angama-20. ngexesha elinye lokuqhawula ngokupheleleyo umthamo.UZhong Jianying, injineli eyintloko yeqela lePinggao, uthe: "Ngokwezimvo zeqela leengcali zokwamkelwa kweprojekthi, itekhnoloji iyonke yeprojekthi ifikelele kwinqanaba eliphezulu lamazwe ngamazwe, kwaye izibonakaliso eziphambili zobugcisa ziye zafikelela kwinqanaba elihamba phambili lamazwe ngamazwe. Kuphela ngu ukwenza impumelelo kubuchwepheshe obuphambili singakwazi ukunceda ngcono amashishini ukulawula iindleko kunye nokuqinisekisa unikezelo lwezixhobo eziphambili. Kwixesha elizayo, kufuneka siqhubeke nokomeleza uphando kwiinkqubo zobunjineli kunye nokukhuthaza ukuguqulwa kwezoshishino lwempumelelo yophando lwezenzululwazi. "
Le mpumelelo ixhasa ngamandla uyilo oluzimeleyo, uphuhliso kunye nokusetyenziswa kwasekhaya kwe-252kV porcelain post circuit breaker kunye ne-rerated short circuit breaking current ye-63kA kunye ne-rerated current ye-6300A kwiqela le-Pinggao.I-252kV / 63kA i-pole type breaker inemfuno enkulu yemarike kunye nommandla obanzi.Uphuhliso oluyimpumelelo lolu hlobo lwesaphuli sesekethe ludlala indima ebalulekileyo ekuphuhliseni ngakumbi iimarike zasekhaya nezangaphandle zabaphuli besiphaluka basekhaya, nto leyo inceda ekuphuculeni amandla e-R & D kunye nenqanaba lobugcisa benkampani kwintsimi ye-switchgear ephezulu. , kwaye ineengenelo ezintle zentlalo nezoqoqosho.
Imfuno yemarike yoqhagamshelwano lombane oluphezulu lwe-voltage e-China imalunga ne-300000 yeeseti ngonyaka, kwaye iyonke intengiso yemarike yonyaka isondele kwi-1.5 yebhiliyoni ye-yuan.Izinto ezintsha zokunxibelelana nombane ombane ophezulu zinethemba elibanzi lokuthengisa kuphuhliso lwegridi yamandla kwixesha elizayo.Okwangoku, impumelelo yeprojekthi ifikelele kwintsebenziswano kunye nenjongo yokuguqula kunye nePinggao, i-Xkaii, i-taikai kunye namanye amashishini okutshintsha kwe-voltage ephezulu, ebeka isiseko somboniso wesicelo esilandelayo kunye nokukhuthazwa okukhulu kwintsimi yombane we-ultra-high kunye ne-ultra- ukuhanjiswa kwamandla ombane aphezulu kunye notshintsho.Iqela leprojekthi liya kuqhubeka nokugxila kumda wamandla kunye namandla enzululwazi kunye nobuchwepheshe, ngokuqhubekayo ukomeleza ukutsha kunye nokusebenza, kwaye uqhubeke nokukhuthaza uphando oluzimeleyo kunye nophuhliso kunye nokusetyenziswa kwendawo yezinto eziphambili kwizixhobo zombane eziphezulu.
Ixesha lokuposa: Jul-08-2021