高压大容量柔性直流电网换流站阀厅空气净距计算及紧凑化布局设计

doi:10.11930/j.issn.1004-9649.202004220

中国电力 ›› 2021, Vol. 54 ›› Issue (1): 10-18.DOI: 10.11930/j.issn.1004-9649.202004220

• 国家“十三五”智能电网重大专项专栏：（四）柔性直流电网技术、装备与工程 • 上一篇下一篇

高压大容量柔性直流电网换流站阀厅空气净距计算及紧凑化布局设计

傅守强, 张立斌, 李红建, 陈翔宇, 高杨, 陈蕾

国网冀北电力有限公司经济技术研究院，北京 100038

收稿日期:2020-04-27 修回日期:2020-06-19 出版日期:2021-01-05 发布日期:2021-01-11
作者简介:傅守强(1986—)，男，通信作者，硕士，工程师，从事电力系统分析、柔性直流输电研究，E-mail：shouqiangfu@163.com;张立斌(1981—)，男，硕士，高级工程师，从事变电工程设计、柔性直流输电研究，E-mail：18290370@qq.com;李红建(1972—)，男，硕士，注册电气工程师，高级工程师，从事智能电网相关工程设计和研究工作，E-mail：18601213209@126.com
基金资助:
国家重点研发计划资助项目(高压大容量柔性直流电网关键技术研究与示范，2016YFB0900900)

Air Clearance Calculation and Compacting Layout Design of Valve Hall in Converter Station of VSC-HVDC Grid with High Voltage and Large Capacity

FU Shouqiang, ZHANG Libin, LI Hongjian, CHEN Xiangyu, GAO Yang, CHEN Lei

State Grid Jibei Economic Research Institute, Beijing 100038, China

Received:2020-04-27 Revised:2020-06-19 Online:2021-01-05 Published:2021-01-11
Supported by:
This work is supported by National Key R&D Program of China (Research and Demonstration on Key Technologies of High Voltage and Large Capacity VSC-HVDC Grid, No.2016YFB0900900)

摘要/Abstract

摘要： 高压大容量柔性直流电网工程因设有直流断路器，导致其阀厅空气间隙与空间布局和以往柔性直流工程有显著不同。针对高压大容量柔性直流电网特点，对阀厅空气净距计算及紧凑化布局设计开展研究。采用g参数法对非标准气象条件下空气间隙的放电特性进行修正，提出了求取最大空气净距时的阀厅温、湿度取值方法，提出了含直流断路器的高压大容量阀厅紧凑化布局设计方法。以张北±500 kV柔性直流电网试验示范工程张北换流站为例，修正了柔性直流工程阀厅空气净距计算的温、湿度取值条件，求得空气净距值。阀厅布局方案对比分析表明，在满足空气净距和检修空间的要求下，该紧凑化设计显著压缩了阀厅尺寸。

关键词: 柔性直流电网, 换流站阀厅, 空气净距, g参数法, 换流阀, 直流断路器, 紧凑化布局

Abstract: The high voltage and large capacity VSC-HVDC grid project has significant difference in valve hall air gap and space layout from the previous one due to its installation of DC circuit breakers. According to the characteristics of high voltage and large capacity VSC-HVDC system, a study is made on the air clearance calculation and compacting layout design of valve hall. The g-parameter method is used to correct the discharge characteristics of air gap under non-standard meteorological conditions, and a method is given for obtaining the temperature and humidity of the valve hall at the maximum air clearance; a method is proposed for compacting layout design of high voltage and large capacity valve hall with DC circuit breakers. Taking Zhangbei converter station of Zhangbei ±500 kV VSC-HVDC demonstration project as an example, the temperature and humidity conditions for calculating air clearance of valve hall were corrected, and the air clearance values were obtained. A comparative analysis of the valve hall layout schemes show that under the condition for meeting the requirements of air clearance and maintenance space, the proposed compacting design method can significantly reduce the valve hall size.

Key words: VSC-HVDC grid, converter station valve hall, air clearance, g-parameter method, converter valve, DC circuit breaker, compacting layout design

傅守强, 张立斌, 李红建, 陈翔宇, 高杨, 陈蕾. 高压大容量柔性直流电网换流站阀厅空气净距计算及紧凑化布局设计[J]. 中国电力, 2021, 54(1): 10-18.

FU Shouqiang, ZHANG Libin, LI Hongjian, CHEN Xiangyu, GAO Yang, CHEN Lei. Air Clearance Calculation and Compacting Layout Design of Valve Hall in Converter Station of VSC-HVDC Grid with High Voltage and Large Capacity[J]. Electric Power, 2021, 54(1): 10-18.

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高压大容量柔性直流电网换流站阀厅空气净距计算及紧凑化布局设计

Air Clearance Calculation and Compacting Layout Design of Valve Hall in Converter Station of VSC-HVDC Grid with High Voltage and Large Capacity

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高压大容量柔性直流电网换流站阀厅空气净距计算及紧凑化布局设计

Air Clearance Calculation and Compacting Layout Design of Valve Hall in Converter Station of VSC-HVDC Grid with High Voltage and Large Capacity

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