Day-ahead economic optimized dispatch of single and three phase hybrid multi-microgrid considering unbalance constraint

作者：Xu, Zhirong; Yang, Ping; Zhang, Yujia; Song, Sibo; Zhao, Zhuoli

来源：Power System Technology, 2017, 41(1): 40-47.

DOI：10.13335/j.1000-3673.pst.2016.0746

• Communication infrastructure
• Complex operations
• Economic optimization
• Hierarchical classification
• Information transmission systems
• Multi micro-grids
• Single-three phase
• Three-phase unbalances

With increasing number of microgrid access in a single district, multiple microgrid gradually forms more complex operation mode and control method in the system called multi-microgrids. Aiming at PV-ESS multi-microgrid of higher commercial value and based on hybrid single-three phase multi-microgrids, a day-ahead economic optimization strategy considering fuzzy rectification and unbalance constraint was proposed and communication infrastructure and information transmission system based on hierarchical classification described. It adopted double scroll optimization structure and optimal objective in its bottom layer was economy of each sub-microgrid, while the upper layer balanced the data optimized by the bottom layer to obtain tie-line power of microgrids transferred to final battery output. Simulations with multi-microgrid platform testified feasibility of the proposed strategy. The strategy can reduce three phase unbalance in system effectively.

• 出版日期2017-1-5
• 单位华南理工大学