Two-stage Robust Optimization Based VPP Partitioning Method for Distribution Network with High Proportion of Distributed Generators

With more access of distributed generations in active distribution network, operation control of the whole grid is getting more complex. Virtual power plant and its hierarchical control have emerged as an effective solution. However, the existing partition methods are mainly depended on geographical location, of which the index is too single. Thus, it remains to be improved. This study proposes a two-stage robust optimization model, which considers partitioning constraints, operation constraints and uncertainty of photovoltaic and load. The model is decomposed to main problem and sub problem with column-and- constraint generation algorithm to solve iteratively until meeting the threshold. Finally, the proposed model is verified through the case study carried out on MATLAB.