Umgaqo wokuSebenza weNkqubo yoLawulo oluSebenzayo lweSeti yeGenereyitha yeDizili

Okwangoku, ngokukhula okuqhubekayo kweshishini loshishino, ukusetyenziswa kwamandla emihla ngemihla kwiziko ledatha kukwabonisa umkhwa wokukhula kwangaxeshanye.Nje ukuba ukusilela kombane oyintloko kusenzeka, ijenereyitha enye yedizili ayinakuhlangabezana nemfuneko yogcino lwamandla kwiziko ledatha konke konke, ngoko ihlala ifuna amandla amaninzi.Iiyunithi zisebenza ngokufanayo.Ukuze kuphuculwe ukusebenza kakuhle kwezoqoqosho kunye nokuthembeka kwenkqubo yokusebenza kwenkqubo yamandla, oku kufuna ukuba ingqiqo yolawulo lwenkqubo ayifuni nje ukuba iyunithi ngokwayo ibe nokusebenza kakuhle, kodwa ikwafuna ukuba iyunithi nganye ithwale ngokufanelekileyo imithwalo esebenzayo nesebenzayo kumazantsi omlambo. inkqubo.Ezi mfuno ziboniswa ngokudibeneyo Kwinkqubo yokulawula isantya se-prime mover kunye nenkqubo yokulawula amandla ombane. ijenereyitha ehambelanayo .

1. Ulawulo lokuwisa.

Ukuze kuqinisekiswe ukuzinza kokusebenza okufanayo kweesethi zejeneretha ye-diesel, ulawulo lwe-droop luhlala lwamkelwa, oko kukuthi, ulawulo lwe-P / f kunye nolawulo lwe-Q / V lwe-droop lusetyenziselwa ukufumana i-frequency ezinzileyo kunye ne-voltage.Le ndlela yolawulo ichaphazela imveliso yamandla esebenzayo ngeyunithi nganye.Ulawulo olwahlukileyo olunamandla asebenzayo, ngaphandle kwemfuneko yonxibelelwano kunye nolungelelwaniso phakathi kweeyunithi, ukufikelela kulawulo lontanga-kwi-peer phakathi kweeyunithi, kunye nokuqinisekisa ibhalansi yokubonelela kunye nemfuno kunye nokuzinza rhoqo kwe-dizeli generator set parallel system.

Ulawulo lwe-droop lusebenzisa amandla ombane kunye nolawulo lwangoku lwe-loop ezimbini.I-loop yangaphakathi yangoku inesantya sokuphendula esiguqukayo esikhawulezayo, esisetyenziselwa ukuphucula umgangatho wamandla wesethi ye-generator.Isilawuli se-loop yangaphandle ye-voltage sinesantya sokuphendula esiguqukayo esicothayo, esinokulawula umbane ophumayo wenkqubo kwaye uvelise ireferensi yelophu yangaphakathi.Umqondiso.Okokuqala, sebenzisa imodyuli yokulinganisa ukuqokelela i-voltage kunye ne-current point point, ubale amandla asebenzayo kunye ne-reactive ye-generator set, kwaye emva koko udlulise i-low-pass filter ye-LPF ukufumana amandla aphakathi ahambelanayo;Ukucinga ukuba i-frequency elinganisiweyo iyasebenza, imveliso yejenereyitha ikhupha amandla asebenzayo P, F, U ngamaza ombane kunye nomlinganiselo olinganisiweyo wombane wenkqubo yamandla ngokulandelelana.I-output frequency kunye ne-voltage amplitude command ifumaneka ngekhonkco le-droop, kwaye emva koko i-voltage yereferensi iveliswa ngekhonkco le-voltage synthesis.Emva koko, i-voltage yereferensi iya kusetyenziswa njenge-voltage kunye negalelo langoku elidibeneyo loMlawuli wekhonkco.

2. Inkqubo yokulawula isantya (ulawulo olusebenzayo lwamandla-amandla) inkqubo.

Ukuthatha amandla alinganisiweyo e-fN yejenereyitha ehambelanayo njengexabiso lereferensi, xa amandla asebenzayo omthwalo osezantsi enyuka ukuya kwi-Pred, ukuphuma rhoqo kwejeneretha ye-synchronous yehla kwixabiso elitsha elizinzileyo le-fref, kunye nethambeka lecandelo le-AB uhlengahlengiso olumileyo lwejeneretha ehambelanayo.Umahluko umlinganiso mp, Δf=fref-fN, ΔP=PN-Pred.Xa iiseti zejenereyitha yedizili zisebenza ngokunxuseneyo, ijenereyitha nganye ihlengahlengisa ngokuguquguqukayo amandla ayo de zonke iimfuno zomthwalo zifezekiswe.Ukuba umthamo weyunithi nganye yokuvelisa iyafana, i-coefficient yokulungelelanisa i-static nayo iyafana, kwaye amandla okuvelisa ayafana ngokwemvelo;ukuba umthamo weyunithi wahlukile, umlinganiso wohlengahlengiso olumileyo lweyunithi enomthamo omkhulu weyunithi enye mkhulu, kwaye iyunithi iya kuthwala ngokwendalo imithwalo eyongezelelekileyo.

3. Ulawulo lwamandla ombane (ulawulo olusebenzayo lwamandla-voltage) inkqubo.

Kwangokunjalo, ithambeka lecandelo le-CD libizwa ngokuba yi-reactive power-voltage droop control coefficient nq ye-synchronous generator, ebonisa unxulumano phakathi kolwandiso lwamandla asebenzayo iseti yokuvelisa kunye nokutenxa kwi-terminal voltage, kunye ΔU=Uref-UN, ΔQ=QN-Qred.Ngokomzobo webhloko yolawulo lweyunithi yamandla e-excitation ye-synchronous generator, i-voltage yereferensi ifunyanwa ngokubalwa kwekhonkco lokulinganisa kunye nekhonkco lohlengahlengiso lomahluko, kwaye emva koko xa kuthelekiswa ne-voltage ye-terminal ye-generator (i-voltage regulator lulawulo lwe-PI) , ukuze i-terminal voltage ye-generator ihlale ilandele ngokukhawuleza umyalelo we-voltage.

Ukuba ufuna ukwazi ngakumbi malunga neejenereyitha zedizili, nceda uqhagamshelane neDingbo Power nge-imeyile dingbo@dieselgeneratortech.com.