Mga pangunahing pag-andar ng substation integrated automation system

Mga pangunahing pag-andar ng substation integrated automation system

Kontrol ng yunit. Ang pamamaraan ng kontrol na pinagtibay ng 200MW at sa itaas ng mga tagalikha. Ang hurno, makina, at koryente ay kinokontrol ng yunit, na may ilang mga silid control unit at isang network control room. Ang bawat unit control room ay may kasamang mga generator o generator-dual-winding na mga transformer, mga high-boltahe na mga transformer ng pabrika at backup na mga transformer, at iba pang kagamitan na nangangailangan ng sentralisadong kontrol. Kontrolin ang tatlong mga paikot-ikot at autotransformer, mga kagamitan sa bus na may mataas na boltahe at mga linya ng paghahatid ng boltahe ng 110kV at sa itaas sa silid ng control ng network.

Comprehensive control. Gamit ang computer bilang pangunahing, nakumpleto rin nito ang mga pag-andar ng kontrol, pagsubaybay, proteksyon, pagsukat, pagsasaayos, pagsusuri at pagkalkula, pagpaplano at paggawa ng desisyon ng mga halaman ng kuryente at pagpapalit upang makamit ang pinakamainam na operasyon. Ang komprehensibong kontrol ay isang mahalagang pamantayan para sa mataas na binuo na antas ng automation ng kapangyarihan.

1. Pagsubaybay sa subsystem. Kasama ang analog, paglipat at pagkolekta ng data ng elektrikal na enerhiya; pagkakasunud-sunod ng pagkakasunud-sunod ng kaganapan SOE; maling pag-record; pagkakamali sa pag-record at pag-ranging; operasyon control function; function na pagsubaybay sa kaligtasan; function ng contact ng man-machine; pag-print ng function; pagproseso ng data at pag-record ng function; harmonic Wave analysis at pagsubaybay awtomatikong baluktot na makina.

2. Ang subsystem ng proteksyon ng Microcomputer. Kasama ang proteksyon ng mga transpormer, linya ng paghahatid, mga bangko ng kapasitor, busbars, atbp at pagpili ng linya ng grounding para sa hindi kumpleto na mga grounded system.

3. Pinagsama control subsystem para sa boltahe at reaktibong kapangyarihan. Kabilang ang microcomputer boltahe at reaktibo ng komprehensibong aparato ng komprehensibong kontrol kabilang ang kabayaran sa kapasitor, reaksyon at on-load na boltahe na nagreregula ng transpormer.

4. Mababang dalas ng pagkontrol ng pagbabawas ng dalas ng sistema ng kuryente.

5. Ang standby na power supply awtomatikong kontrol;

6. Komunikasyon ng pinagsama-samang mga sistema ng automation sa mga pagpapalit. Kasama ang komunikasyon sa pagitan ng antas ng panloob na larangan at ang komunikasyon sa pagitan ng sistema ng automation at ang nakahihigit na pagpapadala.

Pang-uuri ng pangalawang circuit

Pang-uuri ng pangalawang circuit

Ang diagram ng mga kable at diagram ng block block sa likod ng screen ay dapat ipahiwatig kung saan nagmula ang mga wire at kung saan maiiwasan ang maling mga wire mga tagagawa ng baluktot na makina. Sa China, ang 'kamag-anak na pamamaraan ng pag-numero' ay malawakang ginagamit. Halimbawa, ang dalawang mga terminal A at B ay kailangang konektado ng mga wire, kung gayon ang bilang ng terminal ng B ay minarkahan sa tabi ng A terminal, at ang bilang ng A terminal ay minarkahan sa tabi ng terminal ng B; kung kailangan ng isang terminal Itulak ang dalawang mga wire, pagkatapos markahan ang dalawang mga numero ng terminal na konektado sa tabi nito.

1. Ayon sa pag-andar ng pangalawang circuit: control circuit:

Signal circuit:

Pagsukat ng circuit ng pagsubaybay:

Proteksyon ng relay at awtomatikong aparato:

Circuit ng regulasyon:

Ang naka-sync na circuit:

Lakas ng pagpapatakbo:

2. Nahahati sa yugto ng pag-unlad:

Desentralisado na kontrol sa lugar. Mag-set up ng independiyenteng mga loop ng kontrol para sa bawat kinokontrol na bagay, isa-sa-isang kontrol sa site ng pag-install ng kagamitan. Ang pamamaraan ng kontrol na ito ay simple at madaling ipatupad, ngunit hindi ito maginhawa para sa koordinasyon at pakikipagtulungan sa pagitan ng bawat yunit at kagamitan. Ito ay angkop para sa mga maliliit na halaman ng halaman at pagpapalit.

Sentral na kontrol. Magtakda ng isang sentral na silid ng control (tinatawag din na pangunahing control room) sa planta ng kuryente o pagpapalit upang maipadala ang kapangyarihan sa pangunahing kagamitan sa elektrikal ng buong halaman (tulad ng mga kasabay na tagabuo, pangunahing mga transpormer, mga transformer ng high-boltahe na halaman, 35kV at mas mataas ) Mga linya, atbp. Ipatupad ang remote na sentralisadong kontrol. Kapag ginagamit ang sentralisadong kontrol, ang kaukulang proteksyon ng relay at awtomatikong aparato ay naka-install din sa central control room, na maaaring makatipid ng mga cable, mapadali ang komisyon at pagpapanatili, at pagbutihin ang kaligtasan sa pagpapatakbo.

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