After the occurrence of natural disasters, the connection of the independent areas in the active distribution network with the upstream power grid may be disconnected. In such a situation, these areas can reduce their operating costs by exchanging energy. In this regard, a new two-level framework for optimal restoration of multi-area active distribution network by using peer-to-peer power exchange is proposed in this paper. In the first level of the proposed method, the status of tie-lines is determined based on the genetic algorithm. Then, peer-to-peer exchanges are settled based on the proposed structure. Finally, load shedding restrictions and other operating restrictions are examined in the second level. Since the areas are independent, they do not have access to each other's private information, such as load information, status of distributed generations, and operating costs. Therefore, in order to protect the privacy of the areas, the network structure has been determined with the aim of maximizing the peer-to-peer exchanges and also considering technical limitations. This method is applied to the modified IEEE 33-bus active distribution network with 5 areas, and the simulation results show its efficiency.
Type of Article:
Research |
Subject:
Power Received: 2023/10/16 | Accepted: 2024/08/11