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牵引变电所是联结牵引供电系统和电力系统的变换单元。为揭示牵引变电所在基波特別是谐波下的拓扑结构特征并准确描述和分析牵引供电系统不对称谐波在三相系统的行为过程,本文通过系统等效变换,首次提出SCOTT、Y/△-11、V/V等几种常用结线牵引变电所的三相通用模型,从而使包括牵引侧并联补偿装置或滤波装置在内的整个牵引变电所在基波和谐波下的行为分析与三相统一起来。
The traction substation is a conversion unit that connects the traction power supply system and the power system. In order to reveal the topological features of traction substations under fundamental harmonics and accurately describe and analyze the behavior of asymmetrical harmonics of traction power supply system in three-phase system, this paper proposes SCOTT, Y / △ -11, V / V and other commonly used three-phase wiring junction transformer substation general-purpose model, so that the traction side of the parallel compensation device or filter device, including the entire traction substation in the fundamental and harmonic behavior Analysis and three-phase unity.