西北首套直流融冰裝置工程啟動評價分析
劉巍,崔力心,郭文科,陳仕彬,郝如海,倪賽賽
(國網(wǎng)甘肅省電力公司電力科學(xué)研究院,甘肅 蘭州 730050)
摘 要:甘肅隴南地區(qū)直流融冰裝置的建成投運,極大地增強了該地區(qū)線路抗覆冰能力。應(yīng)用Matlab軟件對330 kV 曬都線路搭建仿真模型進行仿真分析和現(xiàn)場電能質(zhì)量測試結(jié)果驗證;同時在現(xiàn)場啟動過程中,對整流變空載投切,線路重合閘后加速保護誤動原因分析,并給出了解決涌流跳閘措施,有效減少了變電站整流變裝置開關(guān)跳閘次數(shù),縮短了停電時間,提高了曬都線供電可靠性。
關(guān)鍵詞:固定式直流融冰裝置;融冰原理;電能質(zhì)量;重合閘后加速;冰災(zāi);應(yīng)用效果
中圖分類號:TM422 文獻標識碼:A 文章編號:1007-3175(2016)07-0034-04
Evaluation Analysis of First DC-Based Deicing
Device in Northwest China
LIU Wei , CUI Li-xin , GUO Wen-ke , CHEN Shi-bin, HAO Ru-hai, NI Sai-sai
(State Grid Gansu Electric Power Research Institute, Lanzhou 730050, China)
Abstract: DC-based deicing devices which were put into operation in Longnan of Gansu province greatly enhanced the anti-icing capability in the area. The software Matlab was used to carry out simulation analysis for the model of 33 0 kV Shaidu lines and to verify the test results of the current power quality. Meanwhile, the rectifier was unloaded, the electric brake was turned on in the process of starting the equipment and the reason of protection mal- operation was analyzed rapidly. This paper gave the measures of flashy flow tripping operation, which effectively reduced the number of tripping of the switch in the transformer substation, shortened the outage time and improved the reliability of power supply.
Key words: fixed DC-based deicing device; deicing principle; power quality; acceleration after reclosing; ice damage; application effect
參考文獻
[1] 武守遠,荊平. 輸電線路直流融冰關(guān)鍵技術(shù)[M].北京:中國電力出版社,2014.
[2] 趙國帥,李興源,傅闖,等. 線路交直流融冰技術(shù)綜述[J]. 電力系統(tǒng)保護與控制,2011,39(21):57-62.
[3] 王昊昊,羅建裕,徐泰山,等. 中國電網(wǎng)自然災(zāi)害防御技術(shù)現(xiàn)狀調(diào)查與分析[J]. 電力系統(tǒng)自動化,2010,34(23):5-10.
[4] 傅闖, 許樹楷, 饒宏, 等. 交流輸電系統(tǒng)直流融冰裝置設(shè)計及其應(yīng)用[J]. 高電壓技術(shù),2013,39(3):705-711.
[5] 薛英林,徐政,傅闖,等.500 kV固定式直流融冰裝置的靜止補償器重構(gòu)方案[J]. 高電壓技術(shù),2011,37(12):3135-3142.
[6] 陸佳政, 張允. 基于12脈動整流技術(shù)的500 kV輸電線路融冰裝置實現(xiàn)[J]. 高電壓技術(shù),2012,38(11):3041-3047.
[7] 謝惠藩,王海軍,陳潛. 高肇融冰運行模式下無功功率和諧波特性分析[J]. 電力系統(tǒng)自動化,2011,35(19):47-52.
[8] 韓素賢. 論自動重合閘和繼電保護的配合[J]. 山東工業(yè)技術(shù),2013,13(10):231-234.
[9] 余侃勝,吳穎. 配網(wǎng)線路合閘沖擊電流對后加速保護的影響綜述[J]. 應(yīng)用能源技術(shù),2015,10(18):27-29.
[10] 張訓(xùn),趙立進,劉宗濱,等. 南方電網(wǎng)500 kW移動式直流融冰裝置現(xiàn)場測試[J]. 南方電網(wǎng)技術(shù),2009,3(3):28-30.
[11] 黃森炯,王京鋒,許育燕. 直流融冰試驗在寧波電網(wǎng)的應(yīng)用[J]. 電工電氣,2014(6):31-33.
[12] GB/T 14549—93 電能質(zhì)量公用電網(wǎng)諧波[S].