| 特高压交流线路工频过电压研究 |
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| 引用本文： | 孙可,易强,董朝武,周浩.特高压交流线路工频过电压研究[J].电网技术,2010(12). |
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| 作者姓名： | 孙可 易强 董朝武 周浩 |
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| 作者单位： | 浙江省电力公司;浙江大学电气工程学院; |
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| 基金项目： | 国家重点基础研究发展计划项目(973项目)(2011CB-209405)~~ |
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| 摘 要： | 特高压线路由于输电距离长、输送容量大、充电功率大,其工频过电压比超高压系统更为严重,但具体计算条件有些仍不够明确。在计算分析单、双回特高压线路工频过电压的基础上,从不同角度对各种工频过电压进行了对比研究,确定了单、双回特高压线路过电压研究中应重点考虑的工频过电压种类,并从原理上给出了解释。研究表明,单回线路应重点考虑单相接地甩负荷过电压,同塔双回线路应重点考虑单回运行方式下单相接地甩负荷过电压和双回无故障甩负荷过电压。
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| 关 键 词： | 特高压输电 工频过电压 同塔双回线路 单相接地甩负荷过电压 |
Research on Power Frequency Over-Voltage in UHV AC Transmission Lines |
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| SUN Ke,YI Qiang,DONG Chaowu,ZHOU Hao.Research on Power Frequency Over-Voltage in UHV AC Transmission Lines[J].Power System Technology,2010(12). |
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| Authors: | SUN Ke YI Qiang DONG Chaowu ZHOU Hao |
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| Affiliation: | SUN Ke1,YI Qiang2,DONG Chaowu1,ZHOU Hao2(1.Zhejiang Electric Power Corporation,Hangzhou 310027,Zhejiang Province,China,2.College of Electrical Engineering,Zhejiang University,China) |
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| Abstract: | Due to its long transmission distance,high transmission capacity,and high charging power,the power frequency over-voltage level occurred in ultra high voltage(UHV) transmission line is much higher than that occurred in extra high voltage(EHV) transmission line,however the computational conditions for power frequency over-voltage in UHV transmission line are not determinate enough.On the basis of the calculation and analysis of power frequency over-voltage occurred in single-circuit and double-circuit UHV tr... |
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| Keywords: | ultra high voltage(UHV) power transmission power frequency over-voltage double circuit transmission line on the same tower load throw-off overvoltage with one-phase fault |
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