Suzhou Electric Appliance Research Institute
期刊號(hào): CN32-1800/TM| ISSN1007-3175

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一種換相開(kāi)關(guān)主回路的設(shè)計(jì)與仿真

來(lái)源:電工電氣發(fā)布時(shí)間:2024-08-30 13:30瀏覽次數(shù):268

一種換相開(kāi)關(guān)主回路的設(shè)計(jì)與仿真

漆志平
(安徽合凱電氣科技股份有限公司,安徽 合肥 231131)
 
    摘 要:換相開(kāi)關(guān)參與抽水蓄能電站多種工況轉(zhuǎn)換,其性能的好壞對(duì)抽水蓄能電站運(yùn)行極為重要。以某抽水蓄能電站 400 MW 級(jí)發(fā)電機(jī)出口換相開(kāi)關(guān)為研究對(duì)象,介紹了其基本結(jié)構(gòu)和運(yùn)行原理,對(duì)主通電回路的通流性能進(jìn)行了計(jì)算分析,根據(jù)產(chǎn)品實(shí)際運(yùn)行工況要求,搭建了三維仿真模型并進(jìn)行了穩(wěn)態(tài)熱分析,計(jì)算出導(dǎo)體溫升的分布規(guī)律。針對(duì)不同的表面散熱系數(shù)以及輻射值,進(jìn)行了仿真溫升數(shù)據(jù)對(duì)比,并對(duì)換相開(kāi)關(guān)樣機(jī)進(jìn)行了溫升試驗(yàn),經(jīng)仿真結(jié)果和試驗(yàn)數(shù)據(jù)對(duì)比,驗(yàn)證了設(shè)計(jì)的合理性以及仿真的正確性。
    關(guān)鍵詞: 換相開(kāi)關(guān);表帶觸指;溫升試驗(yàn);接觸電阻;表面散熱系數(shù)
    中圖分類(lèi)號(hào):TM564 ;TM612     文獻(xiàn)標(biāo)識(shí)碼:B     文章編號(hào):1007-3175(2024)08-0037-05
 
Design and Simulation of the Main Circuit of a Commutation Switch
 
QI Zhi-ping
(Anhui Hekai Electrical Technology Co., Ltd, Hefei 231131, China)
 
    Abstract: Commutation switch is involved in the switch of various working conditions of pumped storage power station, and its performance is very important to the operation of pumped storage power station. This paper takes the outlet commutation switch of 400 MW generator of pumped-storage power station as the research object to introduce the basic structure and operation principle, calculate and analyze the current passing performance of the main energized circuit. According to the requirements of the actual operation condition of the product,building the three-dimensional simulation model and analyzing the steady-state thermal, and the distribution law of conductor temperature rise is calculated. Then, according to the different surface heat dissipation coefficient and radiation value, comparing the simulation temperature rise data and carring out the temperature rise test for the commutation switch prototype. Finally, the rationality of the design and the correctness of the simulation are verified by comparing the simulation results with the test data.
    Key words: commutation switch; watch strap touch finger; temperature rise test; contact resistance; surface heat dissipation coefficient
 
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