Reliability Evaluation for Connection Modes of Urban High Voltage Distribution Network

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.