| 邻近交流线路时直流输电线路电晕损失的计算与分析 |
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| 引用本文： | 周象贤,卢铁兵,崔翔,赵志斌,甄永赞,罗兆楠,方超.邻近交流线路时直流输电线路电晕损失的计算与分析[J].中国电机工程学报,2011,31(31). |
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| 作者姓名： | 周象贤 卢铁兵 崔翔 赵志斌 甄永赞 罗兆楠 方超 |
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| 作者单位： | 高电压与电磁兼容北京市重点实验室（华北电力大学）,北京市昌平区,102206 |
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| 基金项目： | 国家自然科学基金项目(51037001)~~ |
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| 摘 要： | 为了对与交流线路邻近的直流输电线路的电晕损失进行预测,提出了一种计算交直流混合输电线路走廊中直流输电线路电晕损失的数值计算方法。该方法采用有限元和有限体积法计算交直流输电线路产生的混合离子流场,通过在每一时间步上进行迭代求解导线表面的电荷密度,使其满足Kaptzov条件,进而获得导线电晕电流,实现电晕损失的计算。该方法采用隐式时间差分,可采用较大的时间步长,提高了计算速度。通过与多种结构交直流邻近线路模型的测量结果的对比,验证了算法的有效性。利用实验和仿真分析,获得了电晕损失随邻近距离、交流电压值的变化规律。最后,基于所提出的方法对与1 000 kV交流线路邻近的±800 kV直流线路的电晕损失进行了分析计算,得到了不同接近距离时的直流电晕损失值。
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| 关 键 词： | 电晕损失 直流输电线路 交流输电线路 同走廊 数值方法 |
Corona Loss Analysis of High Voltage DC Transmission Lines in Close Proximity of High Voltage AC Transmission Lines |
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| ZHOU Xiangxian,LU Tiebing,CUI Xiang,ZHAO Zhibin,ZHEN Yongzan,LUO Zhaonan,FANG Chao,Changping District,Beijing ,China.Corona Loss Analysis of High Voltage DC Transmission Lines in Close Proximity of High Voltage AC Transmission Lines[J].Proceedings of the CSEE,2011,31(31). |
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| Authors: | ZHOU Xiangxian LU Tiebing CUI Xiang ZHAO Zhibin ZHEN Yongzan LUO Zhaonan FANG Chao Changping District Beijing China |
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| Affiliation: | ZHOU Xiangxian,LU Tiebing,CUI Xiang,ZHAO Zhibin,ZHEN Yongzan,LUO Zhaonan,FANG Chao(Beijing Key Laboratory on High Voltage & EMC(North China Electric Power University),Changping District,Beijing 102206,China) |
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| Abstract: | In order to predict the corona loss of high voltage DC(HVDC) transmission lines which are close to high voltage AC(HVAC) transmission lines,a numerical method was proposed.The hybrid ion flow field was simulated by combination of the finite element method and the finite volume method.For the implementation of Kaptzov's assumption,the charge distribution on the surface of the lines was determined by using an iterative process,and then the corona current was obtained.A large time step can be used due to an im... |
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| Keywords: | corona loss high voltage DC(HVDC) transmission lines high voltage AC(HVAC) transmission lines hybrid corridor numerical method |
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