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                1. 高低壓開關(guān)柜/電容補(bǔ)償柜/啟動(dòng)柜成套電氣設(shè)備生產(chǎn)商-襄陽赫特電氣制造有限公司歡迎您!
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                  特高壓交流輸變電環(huán)網(wǎng)工程介紹-1

                  文章來源:網(wǎng)絡(luò)時(shí)間:2025-11-19 點(diǎn)擊數(shù):
                  我國(guó)特高壓輸電工程大規(guī)模建設(shè)后已經(jīng)構(gòu)成了堅(jiān)強(qiáng)電網(wǎng),尤其是特高壓交流輸變電環(huán)網(wǎng)的建設(shè)。在以前特高壓工程介紹中也涉及到一些國(guó)內(nèi)特高壓交流工程(1)(比如,華中的日字型環(huán)網(wǎng)。至于為什么選擇環(huán)網(wǎng)及聯(lián)網(wǎng),有什么優(yōu)勢(shì)以后再介紹)。那么到目前為止以及今后,有哪些特高壓環(huán)網(wǎng)完成或者計(jì)劃了呢?基于現(xiàn)有新聞及資料匯總?cè)缦拢謳灼趦H供學(xué)習(xí)參考。如有不充分或遺漏的也歡迎大家補(bǔ)充。
                   
                  特高壓的建設(shè)經(jīng)歷了從獨(dú)立分散的點(diǎn)對(duì)點(diǎn)輸電,到各輸電線路之間的聯(lián)網(wǎng),互通進(jìn)而構(gòu)成環(huán)網(wǎng)結(jié)構(gòu),大大增強(qiáng)了電網(wǎng)的可靠性。環(huán)網(wǎng)工程極大地增強(qiáng)了省際間的電力交換能力,并在緩解電力供需緊張形勢(shì)方面發(fā)揮了舉足輕重的作用。目前,在華北、華東及華中地區(qū),特高壓環(huán)網(wǎng)已經(jīng)成功建成。而且有更進(jìn)一步的拓展建設(shè)。
                   
                  而浙江與川渝地區(qū)的特高壓環(huán)網(wǎng)也處于開工或具體規(guī)劃階段,預(yù)示著未來電力傳輸與調(diào)配能力的進(jìn)一步提升。
                   
                  01 華東特高壓環(huán)網(wǎng)工程
                   
                  華東特高壓環(huán)網(wǎng)是國(guó)家電網(wǎng)公司規(guī)劃建設(shè)的華東交流特高壓聯(lián)網(wǎng)項(xiàng)目,是貫穿皖、蘇、浙、滬“三省一市”的特高壓交流環(huán)網(wǎng)。由1000千伏淮南 - 浙北 - 上海工程(南半環(huán))、1000千伏淮南 - 南京 - 上海工程(北半環(huán))及2013年4月開工的浙北 - 福州工程組成,包含蘇通GIL綜合管廊工程等關(guān)鍵節(jié)點(diǎn)。
                   
                  南半環(huán),即皖電東送工程,是我國(guó)首條同塔雙回路特高壓交流輸電工程。工程于2011年9月獲得國(guó)家核準(zhǔn),于2013年9月25日投入正式運(yùn)行。北半環(huán)架空部分于2016年12月建成,2019年9月蘇通GIL工程投運(yùn)實(shí)現(xiàn)環(huán)網(wǎng)合環(huán)運(yùn)行,形成世界首個(gè)特高壓交流環(huán)網(wǎng)。
                   
                  該環(huán)網(wǎng)中,蘇通GIL工程采用世界首創(chuàng)特高壓GIL技術(shù),盾構(gòu)直徑12.07米。合環(huán)后貫通皖蘇浙滬負(fù)荷中心,與浙北 - 福州工程聯(lián)網(wǎng),整體受電能力達(dá)6980萬千瓦。工程連接西部能源基地,每年可減排二氧化碳3.1億噸,并解決長(zhǎng)三角500千伏短路電流問題。
                   
                   
                  02 華中特高壓環(huán)網(wǎng)工程
                   
                  自晉東南-南陽-荊門全國(guó)首條交流特高壓試驗(yàn)示范工程投運(yùn)十多年來,已經(jīng)建設(shè)了大量區(qū)域交流特高壓線路。之后更多重點(diǎn)建設(shè)除直流特高壓輸電外交直流聯(lián)網(wǎng),以構(gòu)建堅(jiān)強(qiáng)電網(wǎng)及環(huán)網(wǎng)。
                  2018年9月,國(guó)家能源局印發(fā)《關(guān)于加快推進(jìn)一批輸變電重點(diǎn)工程規(guī)劃建設(shè)工作的通知》,構(gòu)成華中“日”字形特高壓交流環(huán)網(wǎng)的6項(xiàng)工程正式納入國(guó)家規(guī)劃,標(biāo)志著華中電網(wǎng)主網(wǎng)架從500千伏向1000千伏飛躍的歷史性重大升級(jí)正式開啟。
                   
                  華中環(huán)網(wǎng)覆蓋河南、湖南、湖北、江西4省,其中“兩湖一江”電力供需形勢(shì)長(zhǎng)期處于緊張狀態(tài)。
                   
                  2024年11月1日,武漢 - 黃石 - 南昌雙回1000千伏特高壓交流工程順利完成72小時(shí)試運(yùn)行,正式投產(chǎn)送電。標(biāo)志著覆蓋湖北、湖南、河南、江西的華中特高壓交流環(huán)網(wǎng)全面建成。1000千伏武漢-南昌交流工程是華中特高壓交流“日”字形雙環(huán)網(wǎng)建設(shè)的收官工程,工程投運(yùn)后,提高鄂贛、鄂湘、湘贛省間互濟(jì)能力合計(jì)470萬千瓦,提高江西電網(wǎng)交流受電能力125萬千瓦,有效緩解了1000千伏荊瀟、瀟江斷面和湖北500千伏吉都、軍夏等斷面卡口問題,提高了特高壓交直流故障支援能力和湖北、江西電壓穩(wěn)定水平。更好地滿足“十四五”時(shí)期華中地區(qū)用電增長(zhǎng)需求。
                   
                  華中區(qū)域電網(wǎng)此前已先后建成駐馬店 - 南陽工程、南昌 - 長(zhǎng)沙工程、南陽 - 荊門 -長(zhǎng)沙工程、荊門 - 武漢工程、駐馬店 - 武漢工程等交流特高壓工程。
                   
                   
                  已經(jīng)納入國(guó)家計(jì)劃的贛江-贛南特高壓工程是華中地區(qū)“日”字型特高壓交流環(huán)網(wǎng)向更加堅(jiān)強(qiáng)可靠的“目”字型環(huán)網(wǎng)結(jié)構(gòu)拓展升級(jí)的首個(gè)工程項(xiàng)目。其成功納規(guī),標(biāo)志著“十五五”期間加強(qiáng)和擴(kuò)大華中區(qū)域特高壓骨干網(wǎng)架邁出了關(guān)鍵一步。
                   
                  03 華北特高壓環(huán)網(wǎng)工程
                   
                  2020年1月4日7點(diǎn)58分,臨沂(高鄉(xiāng))~棗莊(微山湖)~菏澤(曹州)~石家莊(邢臺(tái))1000千伏特高壓交流輸變電工程(山東~河北特高壓環(huán)網(wǎng)工程)完成72小時(shí)試運(yùn)行,轉(zhuǎn)為正式運(yùn)行,標(biāo)志著世界首條真正意義上的特高壓交流環(huán)網(wǎng)建成投產(chǎn)!
                   
                  山東 -河北1000千伏特高壓交流環(huán)網(wǎng)工程于2018年5月29日開工,是華北特高壓交流受端網(wǎng)架的關(guān)鍵工程,其建成標(biāo)志著世界上電壓等級(jí)最高、網(wǎng)架結(jié)構(gòu)最強(qiáng)的華北特高壓交流骨干網(wǎng)架基本形成。
                   
                  該環(huán)網(wǎng)由“兩橫三縱一環(huán)網(wǎng)”構(gòu)成,兩橫為蒙西-天津南、榆橫-濰坊;三縱為蒙西-晉中、張北-雄安-石家莊(即張北-雄安、雄安-石家莊)、錫盟-山東;一環(huán)網(wǎng)為山東-河北環(huán)網(wǎng)。
                   
                  山東是全國(guó)特高壓電網(wǎng)建設(shè)的主戰(zhàn)場(chǎng)。2014年以來,已累計(jì)開工建設(shè)“五交四直”九項(xiàng)特高壓工程,包括錫盟 - 山東、榆橫 - 濰坊、濰坊一站一線、臨沂一站一線、山東 - 河北環(huán)網(wǎng)工程五項(xiàng)1000千伏特高壓交流工程,上海廟 - 山東、扎魯特 - 青州兩項(xiàng)落點(diǎn)山東的±800千伏特高壓直流工程和錫盟 - 泰州、晉北 - 南京兩項(xiàng)過境山東的±800千伏特高壓直流工程。
                   
                   
                   
                  2025年3月18日在天津、河北、山西同步開工建設(shè)的大同-懷來-天津南1000千伏特高壓交流工程計(jì)劃2027年6月建成投運(yùn)。該工程起自山西大同,經(jīng)河北燕山山脈和海河流域,最終接入天津?yàn)I海新區(qū),新建雙回線路770千米,新建4座變電站并擴(kuò)建1座變電站,新增變電容量1800萬千伏安。
                   
                   
                  作為"西電東送"戰(zhàn)略新通道,工程建成后將使華北區(qū)域特高壓送電能力提高至2100萬千瓦,年輸送電量超270億千瓦時(shí),可替代燃煤445萬噸,減排二氧化碳1181萬噸。工程通過優(yōu)化華北特高壓主網(wǎng)架結(jié)構(gòu),提升京津冀電網(wǎng)安全穩(wěn)定水平,促進(jìn)山西、冀北地區(qū)新能源消納與區(qū)域協(xié)調(diào)發(fā)展。
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