面向源网互动的智能配电网日前调度研究

摘要

面向源网互动的日前调度问题需要考虑多项目标,同时针对多个时段进行优化.在分析互动资源特性基础上,将可控型DG的出力及端电压、微电网与配电网的交换功率、开关状态作为控制量,提出考虑电压偏移、网损、负荷波动、开关动作次数几项指标,基于矩阵编码的智能配电网日前调度方法.以86节点配电网为基础设计仿真算例,仿真结果证明了模型和算法的有效性.%Multiple targets need to be considered in the day-ahead scheduling oriented to "source-grid" interaction,and optimization of multiple time periods needs to be carried out at the same time.Based on the analysis of the characteristics of interactive resources,an optimization method of the day-ahead scheduling of the smart distribution network is proposed on the basis of the matrix coding with minimum voltage offset,network losses,load fluctuations,and the number of switching operations as objective functions.The output and terminal voltage of controllable distributed generation,the exchange power between micro grid and distribution network,and the switch states are used as control variables.The design of simulation examples is based on an 86-node distribution network and the effectiveness of the model and the algorithm is verified by the simulation results.