Energy Management System for Grid Connected PV-Battery-Diesel Hybrid System (EMS4GCHS)

In recent times, the reliance on diesel generators as backup power supplies in residential areas, hospitals, institutes, and industries has been a necessary practice, especially during in terruptions in grid supply. However, with the increasing availability of open spaces conducive to the installation of renewable energy resources, the transition to more sustainable, efficient, and economical power generation systems is within reach. This paper proposes a novel integration of Photovoltaic (PV) systems and diesel generators, augmented with battery storage, to form a comprehensive energy management solution aimed at reducing diesel consumption and environmental pollution. 

The present energy landscape demands a shift from conventional power generation methods to more sustainable alternatives. PV systems have become a focal point of interest due to their numerous advantages, including easy operation and a substantial reduction in greenhouse gas emissions. Combining these systems with existing diesel generators not only fosters a greener energy solution but also offers a financially viable method to reduce electricity bills substantially. Moreover, the integration of an energy storage device, such as a battery, enhances the reliability and quality of power supplied to the load, making this hybrid system a robust solution for addressing the contemporary energy challenges. 

The central proposition of this paper is the development of an effective energy management system, focusing on a PV-diesel-battery hybrid configuration. This system is primed to be a staple in distribution systems, addressing the dual needs of energy efficiency and environmental preservation. To ensure optimal functionality and maintain power quality, it is imperative to integrate a competent inverter controller within the system. The proposed setup envisages the incorporation of a bidirectional DC to DC converter between the dc-link and the battery, facilitating regulated charging and discharging processes. Furthermore, a Neuro-Fuzzy based controller is implemented for overseeing the operations of both the inverter and the bidirectional converter, enhancing response accuracy.  Additionally, we recommend the inclusion of a sliding mode controller, synchronized with the inverter controller, to modulate the inverter input current effectively. This synergy of controllers promises to uphold the power quality standards, thereby ensuring the system’s reliability and efficiency. To substantiate the efficacy of the proposed controller system, we conducted extensive testing, the results of which have been documented and evaluated through Real-Time Simulator (RTS) on the OPAL-RT platform. These tests affirm the potential of the proposed system in various scenarios, showcasing its adaptability and performance proficiency. 

In conclusion, this paper delineates a pioneering approach to integrate renewable energy sources with existing power generation mediums, fostering a pathway to greener and more sustainable energy solutions. The proposed PV-diesel-battery system, supplemented with advanced controller mechanisms, stands as a testament to innovation in energy management, promising a significant reduction in diesel consumption and environmental pollution. The empirical results gathered through RTS accentuate the system's potential, urging further exploration and adoption in the wider energy sector. 

We envisage that the widespread implementation of such systems will revolutionize the energy landscape, steering it towards sustainability and efficiency. This research serves as a beacon, guiding the transition to renewable energy sources, thereby making a substantial contribution to the global efforts in mitigating climate change and fostering environmental preservation.