Document Type : Research Paper
Microgrids are practical views of integration of distributed generations (DGs) into distribution systems. In this regard, utilizing appropriate technologies and accurate recognition of energy generation and storage systems, as well as optimal scheduling for these resources are of the paramount importance in microgrids. Therefore, connection of DG resources and storages to the grid in the form of virtual power plant in order to increase efficiency and owners’ interest has attracted significant attention of researchers and distribution network operators. This research presents a model for optimal day-ahead scheduling of heat-power generation units in a multi-zonal virtual power plant (VPP). This VPP includes a number of combined heat-power generations, distribution network loads, and electrical vehicles with smart charging as well as energy storages. In order to approach the reality of distribution systems, uncertainty related to behavior of electrical vehicles was modeled with Monte-Carlo simulation while uncertainties of generation and electrical/thermal loads were modeled using a probabilistic method. Matlab software and swarm robotics search & rescue (SRSR) has been used as an optimization tool in this paper. The results confirmed the effectiveness of the proposed method.