Reconfiguração de sistemas ativos com alocação ótima de bateria

Abstract

Resilience of electrical power systems is a paradigm that has been studied in order to provide continuity to the electrical energy service during the interruption of the main source. This leads to the need to use the existing resources in the microgrid in an intelligent way in order to, first, serve as many users as possible and second, for the longest possible time. Then the question becomes an energy optimization problem. In this context, the service of important loads such as hospitals, government, transport, public lighting, and telecommunications has to be considered as a priority. In this work, the connection of priority loads is made before the other loads. The restoration of loads can be done from a centralized or in a decentralized way. In this work, the reestablishment of loads will be analyzed in a centralized way, from a supervisory organism or Distribution Management System, ADMS for its acronyms in English (Advantage Distribution Management System). The methodology includes the remote connection and disconnection of loads and switches, as well as the allocation of battery-DC/AC inverter set mounted on trucks (MTBESS) at strategic points intelligently chosen in order to restore the largest amount of priority load possible first and then the other loads. In this sense, MTBESS are a very important asset to achieve this multipurpose. This work proposes a strategy for the use of MTBESS in charging and discharging regimes with the idea of supporting the other generation sources to meet the demands during the interruption time. Distribution systems are very dynamic, scenarios vary depending on distributed generation availability, time of day, typical day, etc. So the allocation of battery trucks, the state of switches (open or closed) and connected loads may vary according to these scenarios.