偏远山区电力普遍服务微网优化模型研究

我国偏远山区电力普遍服务当前主要采用主网延伸策略，鲜有在成本量化与管控上具备优势的离网型微网解决方案。为讨论微网实施方案的优选问题，提出以交叉补贴和可靠性损失作为离网型微网优化目标，设计村级微网和区域微网2层，通过求解MILP问题优化配置微网电源、网络拓扑、设备型号等。1个含5村庄的算例表明，区域微网可以作为偏远山区供电优选方案，为电力普遍服务的实施提供参考。

Microgrid Optimization Model of Electric Universal Service in Remote Mountainous Areas

At present， the electric universal service in remote mountainous areas in China mainly adopts the main network extension strategy and lacks distributed micro-grid solutions， while the microgrid has advantages in cost quantification and cost control.In order to discuss the optimization of electric universal service path，cross-subsidization and reliability loss are proposed as the off-grid micro-network optimization target，two layers of village-level micro-grid and regional-level micro-grid are designed，the configuration， network topology， device model of micro-grid are optimized by solving MILP problem. The example with 5 villages shows that the construction of a regional level micro-grid is the preferred solution，which provides a feasibility reference for the electric universal service project.