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电网技术  2015 

考虑瞬时性峰值负荷特性的配电网可靠性规划

DOI: 10.13335/j.1000-3673.pst.2015.03.026, PP. 757-762

Keywords: 瞬时性峰值负荷,变电站规划,最佳供电半径,变电站互联

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Abstract:

长距离、重负荷的辐射配电线路受电端电压偏低,影响供电电压质量,串联补偿和并联补偿都是解决这一问题的途径。串、并联补偿的同时投入可能会产生相互抵消的效果,因此有必要对二者的兼容性进行研究。以负荷点电压随串联补偿度变化曲线作为分析工具,首先分析仅末端带有负荷的辐射配电线路,得出了串、并联补偿的兼容性规律;进而通过对某66kV配电网的仿真计算,证明该兼容性规律对带有多个负荷点的线路也具有适用性;同时,引出串联电容过补偿+并联电抗及串联电抗+并联电容过补偿的串、并联补偿配合方式,可大幅提高受电端电压。

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