中压配电网次级网络分析模型

Analysis Model for Secondary Grid of Mid-voltage Distribution Network

针对10kV配电网网架结构一直存在着复杂、参差不齐的状态,为了有效梳理和规范10kV配电网网架结构,提出了中压配电网分层分区的基本思想,定义了10kV配电网主干网络和次级网络的概念;其次,以客观反映次级网络结构和功能特性为基础,为满足不同需求构建了三类次级网络分析子模型;最后,根据某城市配电网建设、运行的实情,制定参数的边界条件,进行模型简化分析和计算,算例结果验证了该方法的正确性和有效性。

To solve the problem of complex and uneven state in grid structure of 10 kV distribution network, an idea on layering and zoning of medium voltage distribution network is presented in this paper, and the concepts of backbone grid and secondary grid is defined to effectively standardize the above-mentioned 10 kV structure afterwards. Moreover, to objectively reflect the structural and functional characteristics of secondary grid, three kinds of secondary grid analysis sub-models are constructed to meet the needs of various demands. Final- ly, according to actual construction and operation situation of distribution network in some city, boundary con- ditions for parameters are determined and the corresponding model is analyzed and calculated. Numerical exam- ples indicate the validity and effectiveness of the proposed method.