| 并联补偿线路合闸操作直流偏置研究 |
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| 引用本文： | 黄然,赵现平,马仪,彭兆裕,张恭源,项恩新. 并联补偿线路合闸操作直流偏置研究[J]. 云南电力技术, 2014, 0(1): 82-85,105 |
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| 作者姓名： | 黄然 赵现平 马仪 彭兆裕 张恭源 项恩新 |
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| 作者单位： | 云南电网公司电力研究院,昆明650217 |
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| 摘 要： | 通过理论推导阐述了带有并联电抗器的线路合闸时,断路器电流直流分量的产生机理和影响因素,建立起基于实际线路参数的500 kV德宏博尚Ⅰ回输电工程PSCAD模型,仿真计算并分析合闸电阻、串联补偿装置、合闸相位、并联电抗器投入情况对空载合闸操作时线路电流直流分量的抑制效果,提出可实施的抑制并联补偿线路断路器直流偏置的措施.
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| 关 键 词： | 直流偏置 并联电抗器 断路器 空载合闸 合闸电阻 |
Research on DC Offset in Closing Operation of Transmission Lines with Shunt Reactors |
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| HUANG Ran,ZHAO Xianping,MA Yi,PENG Zhaoyu,ZHANG Gongyuan,XIANG Enxin. Research on DC Offset in Closing Operation of Transmission Lines with Shunt Reactors[J]. Yunnan Electric Power, 2014, 0(1): 82-85,105 |
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| Authors: | HUANG Ran ZHAO Xianping MA Yi PENG Zhaoyu ZHANG Gongyuan XIANG Enxin |
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| Affiliation: | ( Yunnan Electric Power Research Institute, Kunming 650217) |
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| Abstract: | DC component in current of circuit breaker and its influencing factors during transmission line closing operation are ana- lyzed in this paper. Based on the parameters of 500 kV Dehong - Boshang I transmission line, PSCAD over - voltage simulation model is built. The extinction effect from closing resistor, Series compensation, closing phase and parallel compensation degree to DC component in current of circuit breaker are simulation calculated. Based on this, reasonable measures for preventing the failure risks of circuit break brought by DC offset are put forward. |
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| Keywords: | DC offset shunt reactors circuit breaker no -load closing closing resistor |
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