Power Grid's New Helper: Fuzzy Logic and Dynamic Voltage Restorers

The modern power grid is under pressure. It has to handle more complex disturbances than ever before. This is due to the rise of renewable energy sources and the increased use of advanced electronics. These factors lead to voltage sags, swells, and harmonics. These issues can harm equipment and disrupt the system's reliability. A new solution has been proposed to tackle these challenges. It combines a Three-phase Dynamic Voltage Restorer (DVR) with a Fuzzy Logic Controller (FLC). FLC is chosen because it can mimic human decision-making. It can handle non-linear, imprecise data. This makes it more adaptable and precise than traditional control methods. The DVR is placed downstream of a transformer in a three-phase supply network. It detects voltage disturbances and compensates for them in real time. The FLC dynamically adjusts the DVR's output based on real-time reference and load voltage measurements. This ensures optimal compensation and consistent voltage regulation. It works well across varying operating scenarios. The system's effectiveness is proven through an optimization model. It achieves a 95% efficiency rate in correcting voltage disturbances. It also reduces total harmonic distortion (THD) to 2. 41%. The system handles voltage sags exceptionally well. It reduces them to as low as 0. 68% with an ultra-fast response time of less than 0. 5 ms. This outperforms conventional methods. The FLC-based DVR system offers robust voltage regulation, improved fault resilience, and enhanced grid stability. It addresses critical power quality challenges. These challenges are exacerbated by the transition to renewable energy sources and the increased dependency on sensitive loads. Its advanced features make it a transformative solution for mitigating voltage disturbances in grid-connected systems. It ensures reliability and efficiency in the face of modern energy demands. The integration of FLC with DVR represents a significant advancement. It provides a more resilient and efficient power supply. This is crucial for maintaining a stable and reliable power grid. It is especially important for sensitive industrial and commercial loads. These loads are prone to voltage disturbances.