چكيده به لاتين
Distributed energy resources (DERs) and controllable loads have many technical, economic, and environmental advantages for power network. The virtual power plant (VPP) presents access to these DERs to the electricity market by integrating distributed generation (DGs), energy storage and loads in the form of an integrated entity. In addition, it controls the controllability and the observability of these resources for system operators and other market players by providing an appropriate interface between these components. The proposed model is a model in which the uncertainties of wind speed, solar radiation and energy prices are modeled based on scenario method. Energy storage has been used to reduce the variability of renewable energy production. These storage devices store surplus power during off-peak hours and deliver it to the grid during peak hours. In the proposed issue, it is assumed that the load can be controlled in the network and the grid operator can control a portion of the load in order to improve its profit. Furthermore, controllable distributed generation sources have been used. Modeling is such that the VPP wants to participate in the energy market and maximize its profits. In this regard, considering that the VPP must take into account the constraints of the network and the congestion of its lines, so by calculating the local marginal price for network buses and then by reducing the congestion by these local marginal prices, the VPP maximizes its profit with considering the constraints and congestion. In this way, the distribution system operator is able to reduce the congestion and power losses of network lines by considering the proposed plan. In addition, the results show that battery storage units reduce the outages of DERs. Also, charge and discharge planning of storage units and optimal network arrangement in order to increase social welfare and manage the density of the active distribution network along with the optimal use of various distributed generation resources are presented. The proposed method in this thesis fixes the node prices on a certain number, reduces the range of changes in local marginal prices, reduces consumer costs, increases producers' profits and reduces line congestion.
