Optimization of photovoltaic energy storage system for zero-carbon buildings based on a two-layer optimization model

Carbon emissions from the operation phase of buildings exceed 20% of the total national carbon emissions in China. It has become an inevitable trend to reduce carbon emissions from the operation phase of buildings and construct zero-carbon buildings. Based on the two-layer optimization method, a comprehensive optimization method for planning and operation of zero-carbon building optical storage system is designed. A two-layer optimal allocation model of optical storage capacity for zero-carbon buildings with the objective function of the shortest cycle of recovery of the system investment cost and the maximum return of the system's typical daily operation is established with the realization of zero-carbon emission during the operation stage of the building as the core element. A set of practical data is analyzed, and finally an arithmetic simulation experiment is carried out in MATLAB to verify the feasibility and science of the proposed method. The example simulation experiments are carried out, and the feasibility and scientifically of the proposed method are verified using the examples. This paper provides a scientific and feasible design method for the practical application of optical storage systems in zero-carbon buildings.