| 星接链式静止同步补偿器在直流融冰的应用 |
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| 引用本文： | 宁玉宝,郑建勇,陈志飞.星接链式静止同步补偿器在直流融冰的应用[J].电力系统自动化,2015,39(6):95-100. |
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| 作者姓名： | 宁玉宝 郑建勇 陈志飞 |
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| 作者单位： | 1. 东南大学电气工程学院,江苏省南京市,210096
2. 江苏科能电力工程咨询有限公司,江苏省南京市,210036 |
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| 摘 要： | 两台星接链式静止同步补偿器(STATCOM)通过中性点连接融冰线路可实现直流融冰,该方式谐波小,占地少。文中说明了该融冰方式的控制原理,通过功率分析的方法推导了直流电压波动公式和分析了二倍频环流的原因,并通过仿真分析得到了证明。为了进一步实现工程应用,还分析了STATCOM的优化选型设计,并与传统的静止无功补偿器(SVC)兼融冰装置进行了技术参数和特点的比较,提出了STATCOM用于直流融冰时适合的应用范围,并提出了移动式STATCOM融冰设计的理念和设计方法。
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| 关 键 词： | 直流融冰 静止同步补偿器 移动式融冰装置 建模 仿真 优化选型 |
| 收稿时间： | 2014/10/17 0:00:00 |
| 修稿时间： | 2015/1/12 0:00:00 |
Application of Star-connected Cascaded STATCOM in DC Ice-melting System |
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| NING Yubao,ZHENG Jianyong and CHEN Zhifei.Application of Star-connected Cascaded STATCOM in DC Ice-melting System[J].Automation of Electric Power Systems,2015,39(6):95-100. |
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| Authors: | NING Yubao ZHENG Jianyong and CHEN Zhifei |
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| Affiliation: | School of Electrical Engineering, Southeast University, Nanjing 210096, China,School of Electrical Engineering, Southeast University, Nanjing 210096, China and Jiangsu Keneng Power Engineering Consulting Co. Ltd., Nanjing 210036, China |
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| Abstract: | Two star-connected cascaded static synchronous compensators (STATCOMs) can be used to melt ice of overhead transmission lines by connecting the line between the neutral points of the two STATCOMs. The ice-melting method has the advantage of small harmonic current and footprint. The control principle of this ice-melting mode is discussed. The DC voltage fluctuation formula is derived and the cause of double frequency circulation is analyzed by the power analysis method via simulation. In order to further engineering application, the optimal selection and design of STATCOM is analyzed, and the technical parameters and characteristics are compared with traditional static var compensator (SVC) ice-melting device. The suitable range of application of STATCOM for DC ice-melting is proposed and the design philosophy and method of movable STATCOM are proposed. |
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| Keywords: | DC ice-melting static synchronous compensator (STATCOM) movable ice-melting device modelling simulation optimal selection |
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