采用大容量主变的10kV配网的接线模式

Wiring Mode of 10 kV Distribution Network with Large-capacity Main Substation

随着城市中心区负荷密度的急剧增长,大容量主变在提升地区配电能力方面优势越来越明显。首先,针对大容量主变下变电站互联模型和变电站配电能力进行了分析,确定两站两主变、两站三主变、三站两主变和三站三主变的变电站联络模型。然后,基于中压电缆网典型K型站接线模式的分析,就不同联络模式下中压电缆网接线模式进行了比较分析,最终,给出了既能满足大容量主变充分释放其容量又能获得较好经济效益的中压电缆网接线模式。

With the dramatic growth of urban centers＇ load density, the advantages of large-capacity main substation in enhancing the regional power supply capacity are becoming more and more obvious. Firstly, the paper studies the substation interconnection model and substation power supply capacity, and determines the substation interconnection model for two stations and two main substations, two stations and three main substations, three stations and two main substations and three stations and three main substations. Then, based on the analysis of typical K-type station wiring model, a comparison is made about the wiring modes of medium voltage cable network under different substation interconnection modes. Ultimately the research presents the wiring mode of medium voltage cable network, which can not only meet the needs of large-capacity main substation in releasing its fully capacity, but also obtain better economic benefits.