Optimizing Agro-Energy-Environment Synergy in Agricultural Microgrids Through Carbon Accounting

Agricultural microgrid deployment plays a pivotal role in the progression of modern agricultural production, acting as a fundamental cornerstone for the realization of smart village. Diverging from conventional industrial microgrids, agricultural microgrids exhibit distinctive characteristics on the load side, wherein the interplay of carbon emissions between the agricultural and energy realms assumes significance. Moreover, A synergistic optimization approach for greenhouse and microgrid is proposed, meticulously considering the far-reaching influence of agricultural microgrid operations, particularly within the context of load-side greenhouse control, on carbon emissions. The study offers insightful simulation outcomes. Primarily, it elucidates the explicit energy flow structure and parameters pertaining to a real-life agricultural microgrid situated in Qingdao, China, thereby accentuating the practicality of the case study. Subsequently, a meticulous validation of the efficacy of the proposed carbon computation technique is conducted independently for the power source and load sides. The effectiveness of synergistic optimization across agriculture, energy, and environmental sectors in enhancing the economic efficiency and low-carbon operations of microgrids has been confirmed. The collaborative optimization model can facilitate a reduction in operational costs by CNY 966 and a decrease in carbon emissions by 2874 kg for an agricultural microgrid incorporating a $3500~m^{2}$ greenhouse on a representative winter day.