Optimization model for the operating cost reduction of DC Microgrid under real-time pricing

An optimization model with heuristic algorithmis implemented to optimize the virtual resistances of droopcontrol for the grid-connected converters of dispatchable units, such that the power flow can be regulated. The performances of the proposed strategy are evaluated by the case studies of a 12-bus 380 V DC microogrid using matlab and a 32-bus 380 V DC microgrid using a real-time digital simulator.

针对可调度单元的并网变流器，本文构建并实现了一种结合启发式算法的优化模型，用于优化下垂控制（droop control）的虚拟阻抗参数，从而实现潮流调控。所提策略的性能通过两类案例研究进行验证：其一为基于MATLAB搭建的12总线380V直流微电网仿真案例，其二为采用实时数字仿真器的32总线380V直流微电网仿真案例。