| 电气化铁路三相电压不平衡分析算法研究 |
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| 作者姓名： | 张振安 李文臣 王洋 安宁 张晓东 |
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| 作者单位： | 河南电力试验研究院，河南 郑州 450052;中国电力科学研究院，北京 100192;河南电力试验研究院，河南 郑州 450052;中国电力科学研究院，北京 100192;河南电力试验研究院，河南 郑州 450052 |
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| 摘 要： | 通过对牵引供电系统结构的分析，推导了三相-两相系统变换方法，将牵引供电系统的两相参数转换为三相系统参数，使牵引供电系统与三相电力系统在拓扑结构上统一起来，从而可以分析牵引负荷引起的电网三相电压不平衡。该算法能够在计算中考虑牵引变压器自身阻抗的影响。使用PSCAD软件与本算法进行了验证，证明了本算法的正确性。
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| 关 键 词： | 电气化铁路 三相电压不平衡 负序电流 牵引变压器 |
Study on the Algorithm of Electrified Railway Three-Phase Voltage Unbalance |
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| Authors: | ZHANG Zhen-an LI Wen-chen WANG Yang AN Ning and ZHANG Xiao-dong |
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| Abstract: | Through analysis of the structure of the traction power supply system, this paper derives the method of transformation from three-phase to two-phase, by which the two-phase parameters can be transformed into three-phase ones, so that the traction power supply system and the three-phase power system are unified in topology, and therefore analysis of the three-phase voltage unbalance of power grid caused by traction load can be facilitated. The impedance of the traction transformer can be considered in the algorithm. The algorithm has been validated by using PSCAD software with its correctness proved. |
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| Keywords: | electrified railways three-phase voltage unbalance negative sequence current traction transformer |
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