Mafambiro eAC haana chekuita zvakananga nekumhanya kweinjini yechiteshi chemagetsi emvura, asi ane chekuita zvisina kunanga.
Hazvina mhosva kuti rudzii rwemichina yekugadzira magetsi, zvakakosha kuendesa simba remagetsi kugrid remagetsi mushure mekugadzira simba remagetsi, kureva kuti, jenareta inofanira kubatanidzwa kugrid kuti igadzire simba. Mushure mekubatanidzwa kugrid, inosanganiswa negrid remagetsi rese, uye ma frequency kwese kwese mugrid remagetsi akafanana chaizvo. Giridhi remagetsi rakakura, frequency fluctuation range idiki uye frequency inogadzikana. Zvisinei, frequency yegrid remagetsi inongoenderana chete nekuti simba remagetsi rakaenzana here. Kana simba remagetsi rinoburitswa nejenareta rakakura kupfuura simba remagetsi rinoshandiswa, frequency yese yegrid remagetsi inokwira, uye zvinopesana.
Kuenzanisa kwesimba remagetsi inyaya huru pagrid remagetsi. Nekuti mutoro wesimba revashandisi unogara uchichinja, grid remagetsi rinofanira kugara richiona kuti simba rinobuda uye mutoro unokwana. Chinangwa chakakosha chechiteshi chemagetsi emvura musystem yemagetsi ndechekuchinja kwema frequency. Ehe, simba guru remvura reThree Gorges rinonyanya kushandiswa kugadzira simba. Kana tichienzanisa nedzimwe mhando dzezviteshi zvemagetsi, zviteshi zvemagetsi zvine zvakanakira mukuchinja kwema frequency. Turbine yemvura inogona kugadzirisa nekukurumidza kumhanya, iyo inogona zvakare kugadzirisa nekukurumidza kubuda kwejenareta, kuitira kuti ikwanise kuyera mutoro wegrid nekukurumidza, nepo simba rekupisa nesimba renyukireya richigadzirisa kubuda kweinjini zvishoma nezvishoma. Chero bedzi simba remagetsi remagetsi riri rakanaka, voltage iri yakagadzikana. Naizvozvo, zviteshi zvemagetsi zvinopa mupiro mukuru mukugadzikana kwema frequency kwegrid remagetsi.
Parizvino, nzvimbo zhinji dzemagetsi madiki nepakati muChina dziri pasi pegridi yemagetsi zvakananga. Giridhi yemagetsi inofanirwa kudzora main frequency modulation power plants, kuitira kuti ive nechokwadi chekuti power grid frequency uye voltage zvakagadzikana. Zvichitaurwa zviri nyore:
1. Giridhi remagetsi rinoona kumhanya kwemota. Iye zvino tava kushandisa mota dzinoenderana pakugadzira magetsi, kureva kuti, mwero wekuchinja wakafanana newegridhi remagetsi, kureva kuti, ka50 musekondi imwe chete. Kune jenareta yemagetsi inodziya ine maerekitironi maviri chete, inotenderera 3000 revolutions paminiti. Kune jenareta yemagetsi inodziya ine maerekitironi maviri, inotenderera 3000 / N paininiti. Turbine yemvura nejenareta zvinowanzobatanidzwa pamwe chete kuburikidza neimwe nzira yekutumira magetsi yakagadzika, saka zvinogona kutaurwa kuti zvinotariswawo nefrequency yegridi remagetsi.
2. Chii chinoita basa rekugadzirisa mvura? Gadzirisa simba rinobuda mujenareta, kureva simba rinotumirwa nejenareta kugrid remagetsi. Kazhinji, simba rakati rinodiwa kuti jenareta irambe iine kumhanya kwayo kwakarongwa, asi kana jenareta yabatanidzwa kugrid, kumhanya kwejenareta kunotsanangurwa nefrequency yegrid. Panguva ino, tinowanzo fungidzira kuti frequency yegrid inoramba isina kuchinja. Nenzira iyi, kana simba rejenareta rapfuura simba rinodiwa kuchengetedza kumhanya kwakarongwa, jenareta inotumira simba kugrid uye inotora simba zvakasiyana. Naizvozvo, kana mota ichiita simba pasi pemutoro unorema, kana yabviswa kubva kugrid, kumhanya kwayo kuchakurumidza kuwedzera kubva kumhanya kwakarongwa kusvika kakawanda, izvo zvinowanzoita tsaona dzekubhururuka!
3. Simba rinogadzirwa nejenareta rinozokanganisawo grid frequency, uye ma hydropower units anowanzo shandiswa sema frequency modulation units nekuda kwe regulation rate yakakwira.
Nguva yekutumira: Chivabvu-17-2022
