| 直流离子流场的有限元迭代计算 |
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| 引用本文： | 余世峰,阮江军,张宇,杜志叶,黄道春. 直流离子流场的有限元迭代计算[J]. 高电压技术, 2009, 35(4): 894-899 |
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| 作者姓名： | 余世峰 阮江军 张宇 杜志叶 黄道春 |
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| 作者单位： | 余世峰,阮江军,杜志叶,黄道春,YU Shi-feng,RUAN Jiang-jun,DU Zhi-ye,HUANG Dao-chun(武汉大学电气工程学院,武汉,430072);张宇,ZHANG Yu(江西省电力公司,南昌,330077) |
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| 基金项目： | 国家电网公司重点科技项目 |
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| 摘 要： | 针对高压直流输电线下方地面处电场强度及离子流密度的问题,采用有限元迭代方法求解了双极离子流场控制方程。将正负极电流连续性方程合并,减少了计算的复杂度。利用圆筒电极问题,将该文计算结果与解析解进行对比,验证了算法的有效性。将方法应用于200kV直流输电线路模型的计算,并与文献测量结果进行对比,计算结果与实测结果较符合,认为误差主要与测量环境有关。利用该文方法计算了实际±500kV直流输电线路离子流场问题,并分析了导线对地高度、极间距变化时地面电场强度和离子流密度的变化情况,结果显示,随导线高度升高和极间距减小,地面处最大电场强度和离子流密度随之减小。
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| 关 键 词： | 高压直流 电场强度 离子流密度 有限元法 迭代计算 导线高度 极间距 |
Finite Element Iterative Computation of Direct Current Ionized Field |
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| YU Shi-feng,RUAN Jiang-jun,ZHANG Yu,DU Zhi-ye,HUANG Dao-chun. Finite Element Iterative Computation of Direct Current Ionized Field[J]. High Voltage Engineering, 2009, 35(4): 894-899 |
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| Authors: | YU Shi-feng RUAN Jiang-jun ZHANG Yu DU Zhi-ye HUANG Dao-chun |
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| Affiliation: | 1. School of Electrical Engineering;Wuhan University;Wuhan 430072;China;2. Jiangxi Electric Power Corporation;Nanchang 330077;China |
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| Abstract: | As to the problem of electric field on the ground and ion density under high voltage direct current (HVDC) transmission lines, iterative finite element method is adopted to solve bipolar ionized field control equations. The computing complexity is reduced by combining the positive and negative polarity current continuity equations. The validity of the algorithm is verified by comparing the calculated results and analytical results in the process of solving cylindrical electrodes problem. This method has bee... |
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