Distributed synchronous generator, voltage deviation, Simulated Annealing
Abstract
Low-power synchronous distributed generators usually supply the maximum available active power while maintaining unity power factor. However, when faced with voltage variations within distribution systems, an alternative solution involves generators injecting or absorbing reactive power to support voltage regulation schemes. This article aims to use distributed synchronous generators as voltage regulators within the local electrical system, with the objective of preserving the electric power quality. The paper introduces an algorithm based on Simulated Annealing to minimize voltage deviations across all buses of the 13-bus IEEE test system. During periods of high load, simulating the test system with the distributed generator operating as a power factor regulator (conventional mode) reveals voltage levels that exceed operational limits. In contrast, when the distributed generator operates as a voltage regulator, incorporating Simulated Annealing optimization results in a reduction in these deviations. The proposed operating method enhances the voltage profile across all electrical nodes, ensuring they remain within operational limits and demonstrating superior performance during periods of low demand.
