计及传输损耗的微电网分布式最优能量管理调度策略

Distributed Optimal Energy Management Strategy of Microgrids With Transmission Losses

针对包含传统发电机组、可再生能源发电机组、柔性负荷与基础负荷的独立微电网系统,提出一种计及线路传输损耗的微电网系统社会效益最大模型。该模型综合考虑了微电网功率平衡约束与节点功率上下限约束,建立Lagrange函数分析所求解优化问题的Kuhn-Tucker条件以确定协调方程,设计基于一致性算法的分布式能量管理调度策略,采用IEEE-9节点微电网系统的4个仿真算例验证分布式算法的正确性与有效性。

To address the independent microgrid system with conventional generators, renewable energy generators, flexible loads and basic loads,this paper proposes a model of the maximum social benefit of microgrid system considering the transmission losses.The model combines the constraints of the microgrid power balance,the upper and the lower limits of the node power.Then it analyzes the Kuhn-Tucker conditions of the optimization problem solved by the Lagrange function to obtain the coordination equation.Subsequently it designs consensus algorithm based distributed energy management scheduling strategy.Ultimately it adopts IEEE-9 test system to verify the correctness and effectiveness of the distributed algorithm by four simulation examples.