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针对2种电气化铁路有源补偿的拓扑结构,分析了它们的电路构成、补偿目标、有源支路容量和适用的供电方式。提出4种适用于电气化铁路的混合有源补偿拓扑结构,给出了每种拓扑结构的电路构成,分析并推导了各自有源支路的容量计算公式,比较了4种混合有源补偿拓扑的有源支路的容量和电压等级。结果表明,这4种混合有源补偿拓扑均降低了电气化铁路有源支路的容量,它们的拓扑结构是合理可行的。4种混合有源补偿拓扑结构的提出,为混合有源补偿在电气化铁路中谐波、无功和负序综合补偿中的应用,提供了电气化铁路新的综合补偿方案。
According to the topological structure of active compensation for two types of electrified railways, the circuit structure, compensation target, active branch capacity and applicable power supply modes are analyzed. Four kinds of hybrid active compensation topology suitable for electrified railway are proposed. The circuit constitution of each topology is given. The capacity calculation formula of each active branch is analyzed and deduced. Four kinds of hybrid active compensation topology are compared Active branch capacity and voltage levels. The results show that the four kinds of hybrid active compensation topology all reduce the capacity of the active branches of electrified railway, and their topology is reasonable and feasible. The proposed four kinds of hybrid active compensation topology provide a new integrated compensation scheme for electrified railway for the application of hybrid active compensation in the harmonic, reactive and negative sequence compensation of electrified railway.