Akademik Veri Yönetim Sistemi
Arabian Journal for Science and Engineering, 2025 (SCI-Expanded, Scopus)
Variable frequency drives (VFDs) are widely used in industrial applications to improve energy efficiency by providing precise motor control. However, their sensitivity to power quality disturbances—particularly voltage sags—can seriously affect both process continuity and equipment reliability. This study investigates the impact of voltage sags on VFD-driven systems and proposes a hybrid mitigation solution that consist of a battery-based energy storage system connected to the DC bus. The main objective is to combine an Active Front End (AFE) converter with a battery-based energy storage system to maintain DC bus voltage stability during voltage sag events for uninterrupted operation of the plant. Simulation studies were carried out using MATLAB/Simulink based on real voltage sags recorded by the POWERLOGIC ION 9000 analyzer, and the proposed solution was then validated by experimental testing in an industrial continuous process plant. The results show that the system is successful in maintaining the DC bus voltage within the operating range of 590–615 V, thus effectively preventing production downtime. In addition, the practical and economic feasibility of the hybrid approach for widespread industrial implementation was highlighted, as it was found to be approximately 44% more cost-effective than other evaluated power quality mitigation methods.