Unified Control Algorithm for Multi-Mode Operation of Bidirectional DC/DC Converters in Renewable Energy Systems

In the evolving landscape of renewable energy systems, bidirectional DC/DC converters have emerged as pivotal components, facilitated energy storage integration and ensured optimal power flow between different energy sources and loads. This paper introduces a novel unified control algorithm adept at seamlessly transitioning between multiple operational modes of these converters, thus enhancing the reliability and flexibility of energy systems. The proposed control methodology integrates innovative modulation techniques and control strategies, ensuring maximum power point tracking (MPPT), battery charge/discharge control, and grid-tied operations without necessitating mode-switching controls. Performance evaluation, carried out using both simulation tools and experimental setups, reveals significant improvements in transient response, reduced switching losses, and consistent voltage regulation across all operational modes. With its adaptive capabilities, this algorithm holds promise for future renewable energy systems, simplifying converter controls and ensuring resilient power management in diverse scenarios.