分布式电源及微网对中压配电网接线模式影响

Influence of Distributed Generation and Microgrid on Medium Voltage Distribution Network Connection Modes

对分布式电源及微网接入中压配电网的影响进行研究,从可靠性、经济性2方面定量评估分布式电源及微网对中压配电网典型接线模式的影响,协调分布式电源及微网接入与中压网架建设之间的关系,确定最优的接入位置,探索适用于分布式电源及微网接入的中压配电网的网架建设模式和发展思路。研究结果表明:微网接入架空辐射状电网时对供电可靠性的提升作用较为明显,且远端接入的可靠性提升作用最优;同时,需提高分布式电源及微网接入的经济性。

This paper studies the influence of medium voltage distribution network based on distributed generation and microgrid, and quantitatively evaluates the influence in terms of reliability and economy, coordinates the relationship between the access of distributed generation and microgrid and the construction of medium voltage grid, and discusses the optimal access location, and explores the construction model of medium voltage distribution network suitable for the access of distributed generation and microgrid. The result shows that the access of microgrid to the radial connection mode of overhead lines obviously improves the power supply reliability with the best improvement in the reliability of the remote access and at the same time, the economy of distributed generation and microgrid needs to be improved.