不同时间尺度下虚拟微网优化调度策略  

Multi-time Scale Optimization Scheduling Strategy for Virtual Microgrid

作　　者：黄伟[1] 熊伟鹏[1] 闫彬禹 刘立夫 刘自发[1] 

机构地区：[1]华北电力大学电气与电子工程学院,北京市102206

出　　处：《电力系统自动化》2017年第19期12-19,共8页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(51577058)~~

摘　　要：随着售电侧的改革,提供新能源发电服务的第三方供应商成为新的独立利益主体。针对独立利益主体以虚拟微网的形式接入主动配电网后的调度问题,基于虚拟微网的概念,提出了虚拟微网在不同时间尺度下的优化调度模型及其优化算法。优化调度模型包括日前调度和实时调度模型,日前调度以虚拟微网利益最大化为优化目标,实时调度则以虚拟微网安全稳定运行为控制目标。最后,基于改进的IEEE 33节点网络结构以及负荷预测和分布式电源出力预测,利用微分进化—细胞膜混合算法求解虚拟微网优化调度模型,算例结果表明通过优化调度,减少了虚拟微网网损,显著提高了虚拟微网的收益和新能源利用率。With the reform of power-sold side,third parties which provide service of new energy power generation has become new independent stake-holder. Based on the concept of virtual microgrid,the scheduling problem of new independent stake-holders which access in the active distribution network in the form of virtual microgrid is focused,and then multi-time scale optimization scheduling model for virtual microgrid is constructed with its solving algorithm. Day-ahead scheduling model and real-time scheduling model is included in optimization scheduling. Day-ahead scheduling model aims at maximizing the interest of virtual microgrid,while real-time scheduling model takes safe and stable operation of virtual microgrid as the optimization goal. Finally,based on the load and distribution generation output forecasts,as well as the transformed IEEE 33-bus network,this paper utilizes the differential evolutioncell membrane hybrid algorithm to solve multi-time scale scheduling model,and the case studies show that： through optimization scheduling,it can not only decease the net losses of virtual microgrid,but also promote the benefits of visual microgrid and the utilization of renewable energy.

关 键 词：虚拟微网(微电网) 主动配电网 独立利益主体 优化调度 

分 类 号：TM73[电气工程—电力系统及自动化]