[1]刘 磊,汪得利,黄 华,等.±1 100 kV/5 455 A特高压直流换流阀饱和电抗器散热设计与研究[J].高压电器,2020,56(07):23-28.[doi:10.13296/j.1001-1609.hva.2020.07.004]
 LIU Lei,WANG Deli,HUANG Hua,et al.Design and Research on Heat Dissipation of Saturable Reactor in ±1 100 kV/5 455 A UHVDC Converter Valve[J].High Voltage Apparatus,2020,56(07):23-28.[doi:10.13296/j.1001-1609.hva.2020.07.004]
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±1 100 kV/5 455 A特高压直流换流阀饱和电抗器散热设计与研究()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第56卷
期数:
2020年07期
页码:
23-28
栏目:
特高压电器研究
出版日期:
2020-07-20

文章信息/Info

Title:
Design and Research on Heat Dissipation of Saturable Reactor in ±1 100 kV/5 455 A UHVDC Converter Valve
作者:
刘 磊1 汪得利2 黄 华1 郑 力1 杨 帆1 周 晨1
(1. 南京南瑞继保电气有限公司, 南京 211102; 2. 嘉善华瑞赛晶电气设备科技有限公司, 浙江 嘉善 314000)
Author(s):
LIU Lei1 WANG Deli2 HUANG Hua1 ZHENG Li1 YANG Fan1 ZHOU Chen1
(1. NR Electric Co., Ltd., Nanjing 211102, China; 2. Sun.King Power Electronics Limited, Zhejiang Jiashan 314000, China)
关键词:
饱和电抗器 散热优化 螺旋结构 铁心测温
Keywords:
saturable reactor optimization of heat dissipation spiral structure iron core temperature measurement
DOI:
10.13296/j.1001-1609.hva.2020.07.004
摘要:
饱和电抗器是换流阀中保护晶闸管的关键部件,运行时饱和电抗器铁心产生的损耗导致铁心温度升高,严重情况下会导致饱和电抗器失效,从而威胁换流阀的安全运行。为降低饱和电抗器铁心温度,确保特高压直流工程可靠性,必须研究铁心散热性能并优化饱和电抗器结构。首先,研究了壳式饱和电抗器内部结构,分析了铁心散热的机理;然后,通过对饱和电抗器内外部结构的优化,为±1 100 kV/5 455 A特高压直流工程设计开发了一款螺旋结构的饱和电抗器,运行时外壳周围形成多重散热风道,优化了散热效果;最后,基于光纤测温原理,在饱和电抗器样机内部铁心表面预埋测温光纤,并在合成试验平台上对饱和电抗器进行长期连续额定负荷运行工况下的铁心测温试验。结果表明:螺旋式饱和电抗器相比于普通壳式饱和电抗器铁心温度大大降低,满足特高压直流工程对饱和电抗器运行可靠性的要求。
Abstract:
Saturable reactor is the key component to protect thyristors of converter valve. During run-time the loss of saturable reactor iron core leads to temperature increment of the core. In severe cases, the saturable reactor will fail and threaten the safe operation of the converter valve. In order to reduce the core temperature of saturable reactor and ensure the reliability of UHVDC project, it is necessary to study the core cooling performance and optimize the structure of saturable reactor. Firstly, the internal structure of the shell type saturable reactor is studied, and the mechanism of iron core heat dissipation is analyzed. Then, by optimizing the internal and external structure of the saturable reactor, a new spiral saturable reactor has been designed and developed for ±1 100 kV/5 455 A UHVDC project. The heat dissipation multi-air ways are formed around the enclosure when the saturable reactor operates. Heat dissipation is optimized. Finally, based on the principle of optical fiber temperature measurement, the temperature measurement fiber is embedded on the core surface of the saturable reactor. The core temperature test of saturable reactor is carried out under the condition of long-term continuous rated load operation on the synthetic test platform. The results show that the temperature of the spiral saturable reactor core is much lower than that of the common shell saturable reactor, which meets the requirements of the operation reliability in the UHVDC project.

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备注/Memo

备注/Memo:
收稿日期:2020-01-07; 修回日期:2020-03-06刘 磊(1984—),男,工程师,主要从事高压直流输电相关技术研究工作。
更新日期/Last Update: 2020-07-25