Chii Chinokonzera Active Simba Kusiyana Mujenareta Seti

Iko kushanduka kwesimba rinoshanda rejenareta seti ine simba guru pakugadzikana kwekushanda kwejenareta.Iko kugadzikana kwemuganho wesimba rinoshanda rekuchinja kwejenareta munguva yekupedzisira yekushanda yakakura.Kana jenareta iri muchikamu chinotungamira kushanda, kunyanya muchikamu chakadzika chinotungamira kushanda, kugadzikana muganho wejenareta seti ichaderedzwa zvakanyanya, izvo zviri nyore kuita kuti jenareta isarwe kurasikirwa nekugadzikana uye rwendo, izvo zvinonyanya kutyisidzira kushanda kwakachengeteka kweiyo jenareta. unit uye magetsi grid.

Ichi chinyorwa chinoongorora zvikonzero zvekushanduka kwesimba kweiyo jenareta seti, uye inotora yakanangwa matanho ekudzivirira kuti ive nechokwadi chekushanda kwakagadzikana kwejenareta set.

1. Pesvedzero yesimba rinoshanda pasimba rinoshanda

Ongororo pamusoro pehukama pakati pesimba rinoshanda uye reactive simba rejenareta

Iyo jenareta yekukurudzira mudziyo inoongororwa pasina otomatiki kugadzirisa mukati mese maitiro ejenareta prime mover simba, uye mushandisi anongogadzirisa jenareta rinoshanda simba, iro rakaenzana nekuchengeta jenareta inogona E uye reactance nguva dzose.Simba rinoshanda uye simba rekona yejenereta ndeye sinusoidal, uye reactive simba uye simba angle ndeye cosine.

Mune fomula, E0, U inokwanisa generator uye terminal voltage;X1 ndeye synchronous reactance yejenareta;δ iElectromagnetic simba kona yejenareta.

Zvinogona kuonekwa kuti simba rinoshanda rinowedzera, simba rekuita rinoderera.Kana imwe kona yemagetsi yasvikwa, jenareta inoshanduka kubva pakupera kwechikamu chekushanda kuenda kumberi kwechikamu, ichitora inductive reactive simba kubva kuhurongwa.Iyo kona yesimba inowedzera nekuwedzera kwechikamu chakadzika, uye iyo yakadzika chikamu chinotungamira ndechekuti, idiki iyo yekukurudzira ikozvino.Naizvozvo, kuti udzivise yakawandisa chikamu kumberi kwejenareta, zvinodikanwa kuti uwedzere iyo yekuwedzeredza ikozvino uchiwedzera simba rinoshanda rejenareta, kuti uderedze kudzika kwepamberi uye kuve nechokwadi chenguva dzose terminal voltage.

2.Kufurira kweiyo unit frequency regulation, kudzora nhanho kudzvanywa uye yekutanga frequency regulation pane inoshanda simba rekugadzira.

1) Kumanikidzwa kwechikamu chekutonga chechikwata chiri panzvimbo imwechete sekushanduka kwesimba rinoshanda.Mukufamba kwenguva, kudzvinyirirwa kwechikamu chekutonga kwechikwata chiri maminitsi makumi maviri mberi kwekushanduka kwesimba rinoshanda.

2) Iyo unit frequency iri muchikamu neiyo inoshanda simba shanduko, uye iyo unit frequency fluctuation iri 0.1s pamberi peiyo inoshanda shanduko yesimba mukutenderera kwenguva.

3) Iko kushanduka kwesimba kweiyo unit kunokonzerwa neiyo yekutanga frequency regulation chiito.Muchidimbu, iyo yekutanga frequency regulation inoshanda nekumhanya kwejenareta.

Inogona kuongororwa kuti shanduko yekutanga jenareta kumhanya inokonzera yekutanga frequency regulation chiito.Mhedzisiro yeprimary frequency regulation action command inoratidzwa mukushandurwa kweiyo unit regulation nhanho kudzvanywa, uyezve inoratidzwa mukushandurwa kweiyo unit frequency uye inoshanda simba.

3.Kufurira kwegridhi frequency pane simba rinoshanda

Izvo zvinogona kuoneka kubva kune waveform dhayagiramu kuti frequency fluctuation amplitude yemagetsi grid idiki zvakanyanya pane iyo yejenareta set, uye periodicity haina kunaka uye inenge isingaite.Naizvozvo, pesvedzero yegridi frequency pane inoshanda simba shanduko inogona kubviswa.

Kuburikidza nekuongorora kuri pamusoro, pesvedzero yesimba rinoshanda, yekuwedzeredza regulation system, network frequency uye zvimwe zvinhu pane inoshanda shanduko yesimba inogona kubviswa.Zvinogumiswa kuti kushanda kwesimba kushanduka kwe generator set muchirimwa nekuda kwekuwedzera kwejenareta seti yekumhanya, iyo yekutanga frequency regulation inoshanda, panguva imwe chete, nekuti kuvhurwa kweyepamusoro-yekumhanya yekudzora vharafu yemhepo turbine iri panzvimbo yekuchinja, iyo hunhu curve painflection. pfungwa haina kugadzikana.Kana iyo yekutanga frequency regulation ichiita, murairo wekuvhura unogashirwa nevhavha inogadzirisa munzvimbo ino iri munzvimbo yekutumira.

4.Prevention uye countermeasures

Iyo jenareta seti iri kumagumo egidhi remagetsi, ine marefu maviri edunhu anobuda mitsara uye yakakosha simba rekutsigira poindi.Tichitarisa kudzikiswa kwazvino kwekushandiswa kwesimba remaindasitiri, reactive simba richifashukira yegidhi remagetsi uye yakakwira system voltage, kuitira kuti ive nechokwadi chemhando yemagetsi, gidhi remagetsi rinoda kuti unit ishande muchikamu, uye mashandiro emuchina mumwechete ane mashoma. kugona kutora reactive simba uye kugadzirisa system voltage.Mukubatana neiyo inoshanda simba shanduko yeyuniti, anotevera ekudzivirira matanho anogadzirwa:

(1) Mamiriro azvino ekushanda ane simba guru pakugadzikana kweyuniti.Kune iyo hombe yemagetsi grid system, iyo yekudzora kuita kwejenareta set inogumira.Naizvozvo, zvinodikanwa kuti iyo inotungamira chikamu chechikamu chinofanirwa kuve chakakodzera kana system voltage yakawandisa, uye yakadzika inotungamira chikamu chekushanda inofanira kudzivirirwa kusvika pazvinobvira.

(2) Nekuda kwemutemo usiri wemutsetse wevhavha inomhanyisa, pane inflection point panenge 70% yenzvimbo yakazara yevharuvhu.Panguva ino, kana akasiyana ma paramita eiyo control system akachinja (kusanganisira yekutanga frequency modulation chiito), kupatsanurwa kwekutonga kunogona kukonzereswa panguva ino, izvo zvinogona kutungamirira kukuchinja kukuru mukuvhurwa kwevhavha inogadzirisa uye kutungamirira kukuchinja kwe simba rinoshanda.Tichifunga nezvemamiriro ezvinhu aya, chiyero chazvino ndechekudzivirira iyo inflection point yevhavha inogadzirisa.