Voltage Stability Improvement in Radial Network

Power system faces great challenges as it is liable to extreme stress conditions leading to its instability. Therefore, it is essential to keep the system stability and the islanded area energized to avoid complete blackout. The book proposes a new application based on the integration of the Boolean algebra and particle swarm optimization (PSO) for service restoration of islanded sections of the distribution system. The goal is to explore the positive role of the reconfiguration strategy, distributed energy resources (DERs) and capacitor banks (C-Bs) on the stability, reliability and power losses of the distribution networks. Moreover, the work refers to the possibility of continuously supplying the loads especially under islanding conditions after disconnection from the external grid. Different scenarios depending on the system operating conditions, normal or contingency, are studied with the objective of improving the system voltage stability index (VSI) taking into consideration different operating constraints. Typical 33/69 buses IEEE distribution systems are simulated with results show the validation and resilience of the proposed approach compared with other existing methods.