換流變壓器水噴霧輔助冷卻系統(tǒng)的設(shè)計與應(yīng)用
馬小軍,李洋,雷戰(zhàn)斐,趙慧
(國網(wǎng)寧夏電力有限公司超高壓公司,寧夏 銀川 750011)
摘 要:現(xiàn)有換流變壓器冷卻系統(tǒng)在大負(fù)荷期間散熱能力不足,一定程度上導(dǎo)致?lián)Q流變壓器運行工況惡化,對換流變壓器的壽命產(chǎn)生不利影響。在現(xiàn)有換流變壓器冷卻方式不變的前提下,提出了一種利用水噴霧方式輔助降低換流變壓器本體和冷卻器溫升的設(shè)計方案,給出了各個輔助降溫系統(tǒng)的設(shè)計流程及換流變壓器事故油池排水量計算,并在工作現(xiàn)場取得了較好的降溫效果。該方案以現(xiàn)有換流站閥外冷水池為水源,投入較小,便于工作人員運行維護(hù),方便換流站的綜合管理,有一定的推廣價值。
關(guān)鍵詞: 換流變壓器;水噴霧;冷卻系統(tǒng);散熱
中圖分類號:TM402 文獻(xiàn)標(biāo)識碼:B 文章編號:1007-3175(2024)07-0057-04
Design and Application of a Converter Transformer
Water Spray Auxiliary Cooling System
MA Xiao-jun, LI Yang, LEI Zhan-fei, ZHAO Hui
(Super High Voltage Company of State Grid Ningxia Electric Power Co., Ltd, Yinchuan 750011, China)
Abstract: The existing cooling system of converter transformer is insufficient in heat dissipation potential during periods of heavy load,which to some extent leads to the deterioration of the operating conditions of the converter transformer, and has a negative impact on the life of the converter transformer. Under the premise that the existing converter transformer cooling method remains unchanged, this paper proposes a design scheme that uses the water spray method to help reduce the temperature rise of converter transformer body and cooler, the design process of each auxiliary cooling system and the calculation of the displacement of oil pool in rheological accident of the converter transformer are given, and good cooling effect is achieved in the work site. The scheme uses the cold water pool outside the valve of the existing converter station as the water source, has less input, is convenient for the operation and maintenance of the staff, and is convenient for the comprehensive management of the converter station, and has certain promotion value.
Key words: converter transformer; water spray; cooling system; dissipate heat
參考文獻(xiàn)
[1] 雷戰(zhàn)斐,宋海龍,劉舒楊.±800 kV 靈州換流站換流變壓器風(fēng)冷系統(tǒng)優(yōu)化設(shè)計[J]. 寧夏電力,2017(3) :32-37.
[2] 劉杉,高沖,侯俊義,等. 基于去離子水冷卻 ±800 kV 換流變壓器閥側(cè)套管的冷卻效果和參數(shù)的影響[J]. 電工技術(shù)學(xué)報,2024,39(12) :3884-3894.
[3] 劉冀邱,張珊珊,熊凌飛,等. 高海拔特高壓換流變壓器冷卻性能修正研究[J] . 高電壓技術(shù),2024,50(1) :242-249.
[4] 王之赫,馮軒,張中平,等. 換流變冷卻器控制邏輯研究及典型案例分析[J]. 電工技術(shù),2022(24) :179-180.
[5] 于鵬,殷丕盛,趙航,等. 默拉直流換流變冷卻系統(tǒng)研究及常見故障分析[J] . 電子制作,2022,30(24) :93-95.
[6] 楊柳,張麗,周月賓,等. 柔性直流換流閥與水冷變壓器外冷卻系統(tǒng)一體化設(shè)計方案[J] . 南方電網(wǎng)技術(shù),2021,15(6) :15-19.
[7] 李星辰,廖毅. 天廣直流換流變冷卻系統(tǒng)電源自動切換回路研究[J]. 通信電源技術(shù),2018,35(9) :139-140.
[8] 王偉,羅宗源,張瑞亮. 高肇直流換流變冷卻系統(tǒng)電源切換回路分析與改進(jìn)[J]. 電工技術(shù),2018(2) :34-35.
[9] 李毅,崔學(xué)龍,陳亮. 貴廣Ⅰ 回直流系統(tǒng)換流變壓器冷卻器的節(jié)能研究[J] . 南方電網(wǎng)技術(shù),2013,7(5) :43-45.
[10] 劉潯,艾亮,成川,等. 換流變冷卻器全停對高壓直流系統(tǒng)影響[J]. 山東工業(yè)技術(shù),2018(17) :166.
[11] 肖磊磊,林永宏,查光年. 換流變壓器冷卻系統(tǒng)電源自動切換回路分析[J] . 南方電網(wǎng)技術(shù),2012,6(2) :47-50.
[12] 王晨睿. 宜賓換流站換流變壓器冷卻器應(yīng)對交流電網(wǎng)擾動隱患分析[J]. 四川電力技術(shù),2018,41(4) :85-89.