一种最优能量流的多微电网分布式优化方法

A Study on the Distributed Optimization Method for Multiple Micro-Grids with Optimal Energy Flow

为实现多微电网经济性目标,一种最优能量流的多微电网系统分布式优化经济调度方法被提了出来。该方法以微电网间功率交互为优化目标,建立多微电网分布式优化经济调度模型,其后利用交替方向乘子法对模型进行求解,从而以分布式的方式实现对多微电网的经济优化,减少信息通信量,实现最优能量流。经过仿真验证,当多微电网系统出现功率分配情况时,此方法可有效保证以经济最优的方式实现微电网之间的功率交互,且维持多微电网功率平衡与稳定运行。

In order to achieve the economical goal of multiple micro-grids,a distributed optimal economical dispatching method for the multiple micro-grid system with optimal energy flow is proposed.Taking the power interaction among micro-grids as the objective of optimization,the distributed optimal economical dispatching model of multiple micro-grids is established.Furthermore,the alternating direction multiplier method is used to solve the model,so as to realize the economical optimization of multiple micro-grids in a distributed way,reduce the amount of information communication and realize the optimal energy flow.The simulation results show that when the power distribution occurs in the multiple micro-grid system,this method can effectively ensure economical and optimal power interaction among micro-grids as well as maintaining the power balance and stable operation of multiple micro-grids.