【摘要】 城市高压配电网接线模式的可靠性高低不仅决定用户能否获得足够的电能，而且也影响到城网建设和改造的经济性．文中利用最小路原理，以供电连续性作为系统可靠性准则，对城市高压配电网的各种不同接线模式进行可靠性定量计算，并以此对各种接线模式的供电可靠性进行分析、比较．在综合考虑经济性与可靠性的基础上，给出几种推荐接线模式．结果表明，该方法不仅计算快，而且保持了一定精度，可为配电网的规划和建设提供参考．更多还原

【Abstract】 Reliability of connection modes of urban high voltage distribution network not only decides whether the consumer can get enough power, but also affects the economic benefits of the construction and reform of the distribution network. Based on the minimum path principle, this paper calculated the reliability for different connection modes of the urban high voltage distribution network. The reliability criterion is whether the system can supply energy to the terminal stations continuously. According to the results of calculation, the reliability of different connection modes were analyzed and compared. Finally, some connection modes were proposed based on the reliability and economic of the network. The results show that this method has the advantages of fast computation and high accuracy, and can provide reference for the plan and construction of urban network.更多还原