分布式电源接入配电系统优化规划方案

Planning Scheme Optimization for Distributed Generation Accessed in Distribution System

分布式电源接入配电系统,有利于降低配电系统网损。提出了分布式电源接入配电系统的优化规划方案,用于确定分布式电源在配电系统中的最优接入位置和容量。首先,通过网损灵敏度分析明确各节点对系统网损的贡献度,确定分布式电源对网损改善的最优接入点;之后,以配电系统网损最小为目标函数,建立分布式电源接入规划模型。同时引入了分布式电源接入效益系数用于保证接入的分布式电源对网损降低具有较高效率;最后,通过IEEE 33节点系统对设计的规划方案进行说明,分析了算法的有效性。

The access of distributed generation is beneficial to reduce the distribution system network loss.An optimization model of planning schemes is proposed to determine the location and capacity of distributed generation in the distributed network.Firstly,the contribution of each bus’injected power to the system network loss is calculated through network loss sensitivity analysis,by which the optimal location of distributed generation is determined.On this basis,a planning model to minimize network loss is established.The benefit coefficient is presented to ensure that the optimized scheme is efficient to reduce network loss.Final,the proposed method is applied to IEEE33-bus test distribution system,and the simulation result verifies the effectiveness of the proposed method.