Isixhobo sembuyekezo yamandla asebenzayo, ekwaziwa ngokuba sisixhobo sokulungisa into yamandla, siyimfuneko kwinkqubo yamandla.Umsebenzi wayo ophambili kukuphucula amandla ombane wenkqubo yokubonelela kunye nokusabalalisa, ngaloo ndlela ukwandisa ukusetyenziswa kakuhle kwezixhobo zokuhambisa kunye ne-substation, ukuphucula ukusebenza kakuhle kwamandla, kunye nokunciphisa iindleko zombane.Ukongeza, ukufaka izixhobo zembuyekezo yamandla asebenzayo asebenzayo kwiindawo ezifanelekileyo kwiintambo zokuhambisa umgama omde kunokuphucula ukuzinza kwenkqubo yokuhambisa, ukwandisa umthamo wokuhambisa, kunye nokuzinzisa umbane ekupheleni kokufumana kunye negridi.Izixhobo zembuyekezo zamandla ezisebenzayo ziye zadlula. izigaba ezininzi zophuhliso.Kwiintsuku zokuqala, abaqhubeli besigaba esihambelanayo babengabameli abaqhelekileyo, kodwa ngokuthe ngcembe bapheliswa ngenxa yobukhulu babo kunye neendleko eziphezulu.Indlela yesibini yayisebenzisa i-parallel capacitors, eyayineenzuzo eziphambili zeendleko eziphantsi kunye nokufakwa lula kunye nokusetyenziswa.Nangona kunjalo, le ndlela idinga ukujongana nemiba efana ne-harmonics kunye nezinye iingxaki zekhwalithi zamandla ezinokuthi zibekho kwinkqubo, kwaye ukusetyenziswa kwe-capacitors ecocekileyo kuye kwaba yinto engavamile.Okwangoku, i-series capacitor imbuyekezo isixhobo yindlela esetyenziswa ngokubanzi yokuphucula amandla.Xa umthwalo wenkqubo yomsebenzisi imveliso eqhubekayo kwaye izinga lokutshintsha komthwalo aliphezulu, ngokuqhelekileyo kucetyiswa ukuba kusetyenziswe imo yembuyekezo esisigxina kunye ne-capacitors (FC).Kungenjalo, imowudi yembuyekezo ezenzekelayo elawulwa ngabafowunelwa kunye nokutshintsha ngokunyathela ingasetyenziswa, ekulungeleyo zombini unikezelo lwamandla ombane aphakathi naphantsi kunye neenkqubo zokusasaza.Ukwenzela imbuyekezo ekhawulezayo kwiimeko zokutshintsha komthwalo okhawulezayo okanye imithwalo yempembelelo, njengokuxutywa kweshishini lerabha. oomatshini, apho imfuno yamandla asebenzayo itshintsha ngokukhawuleza, iinkqubo eziqhelekileyo zembuyekezo zamandla asebenzayo, ezisebenzisa i-capacitors, zinemida.Xa i-capacitors inqanyuliwe kwigridi yamandla, kukho i-voltage eseleyo phakathi kwezibonda ezimbini ze-capacitor.Ubungakanani be-voltage eshiyekileyo ayinakuqikelelwa kwaye idinga imizuzu eyi-1-3 yexesha lokukhutshwa.Ngoko ke, ikhefu phakathi kokudibanisa kwakhona kwigridi yamandla kufuneka ilinde de i-voltage eshiyekileyo iyancipha ibe ngaphantsi kwe-50V, okubangela ukungabikho kokuphendula ngokukhawuleza.Ukongezelela, ngenxa yobukho bexabiso elikhulu lee-harmonics kwinkqubo, izixhobo zembuyekezo ze-LC-tuned zembuyekezo ezenziwe ngee-capacitors kunye ne-reactors zifuna umthamo omkhulu wokuqinisekisa ukhuseleko lwee-capacitors, kodwa zinokukhokelela kwi-overcompensation kwaye zibangele inkqubo ukuba yiba namandla.Ngoko, i-var compensator (SVC) wazalwa.Ummeli oqhelekileyo we-SVC uqulunqwe yi-Thyristor Controlled Reactor (TCR) kunye ne-fixed capacitor (FC).Uphawu olubalulekileyo lwe-static var compensator yikhono layo lokulungisa ngokuqhubekayo amandla asebenzayo esixhobo sembuyekezo ngokulawula i-angle yokulibaziseka evusa i-thyristors kwi-TCR.I-SVC isetyenziswa ikakhulu kwiinkqubo zokusasazwa kwamandla ombane aphakathi ukuya phezulu, kwaye ilungele iimeko ezinomthamo omkhulu womthwalo, iingxaki ezinzima ze-harmonic, imithwalo yempembelelo, kunye namazinga aphezulu okutshintsha umthwalo, okufana nezixhobo zentsimbi, amashishini erabha, i-metallurgy non-ferrous, ukusetyenzwa kwesinyithi, kunye nomzila we-high-speed rails.Ngophuhliso lobuchwepheshe be-electronics yamandla, ngokukodwa ukuvela kwezixhobo ze-IGBT kunye nokuqhubela phambili kweteknoloji yokulawula, kuye kwavela olunye uhlobo lwesixhobo sembuyekezo yamandla esebenzayo eyahlukileyo kwi-capacitors yendabuko kunye nezixhobo ezisekelwe kwi-reactors. .Le yiStatic Var Generator (SVG), esebenzisa iPWM (Pulse Width Modulation) iteknoloji yokulawula ukuvelisa okanye ukufunxa amandla asebenzayo.I-SVG ayifuni ukubalwa kwe-impedance yenkqubo xa ingasetyenziswa, njengoko isebenzisa iisekethe ze-inverter zebhulorho ezinamazinga amaninzi okanye iteknoloji ye-PWM.Ngaphaya koko, xa kuthelekiswa ne-SVC, i-SVG inezibonelelo zobukhulu obuncinci, obukhawulezayo obuqhubekayo kunye nokuguquguquka okugudileyo kwamandla asebenzayo, kunye nokukwazi ukubuyekeza zombini amandla asebenzayo kunye ne-capacitive.
Ixesha lokuposa: Aug-24-2023