Research On Climate Adaptive Control Strategy Of Building Facade Photovoltaic External Shading Based On Comprehensive Energy Consumption

This article aims to explore the integration of photovoltaic technology and building facades to achieve energy conservation and environmental protection,which is an important issue facing the world today.Photovoltaic technology is a reliable form of renewable energy that converts solar energy directly into electricity.In addition,photovoltaic shading devices can not only effectively improve the indoor light and heat environment,but also use clean solar energy resources to provide additional electrical energy for buildings.The large.scale construction of urban office buildings makes the solar energy utilization potential of building facades more and more prominent.Building facade integrated photovoltaic sunshade integrates photovoltaic modules on the facade sunshade,taking into account the necessary sunshade and heat protection requirements and distributed solar energy collection and power supply,without occupying the interior space of the building.Compared with traditional shading facilities,facade photovoltaic shading not only has significant energy.saving and multi.functional advantages,but also enhances the aesthetics and sense of technology of buildings.Although extensive research has been carried out on the performance of sunshade devices and the energy characteristics of photovoltaic systems at home and abroad,the existing research at home and abroad still focuses on the traditional physical parameters of photovoltaic sunshades,the form of built.in louvers,or the shaft.based tracking dynamic optimization,etc.The exploration of traditional adaptation methods,and most of the relevant research is carried out around specific climate zones and changes in a single dynamic parameter.For the dynamic adaptation of multiple climate zones,the research on the comprehensive dynamic adaptation of rotation angle coupling is rarely seen in the academic circle.Therefore,the primary purpose of this study is to explore the integration of photovoltaic technology and building facades.Photovoltaic technology is a reliable form of renewable energy that converts solar energy directly into electricity.In addition,the building facade photovoltaic shading system can not only improve the indoor light and heat environment,but also supplement the building energy consumption with clean solar energy resources during the day.Although the performance of shading devices and the energy characteristics of photovoltaic systems have been extensively studied,there is a lack of practical applications to test the operating efficiency and multi.objective control strategies of photovoltaic shading devices.In this study,a detailed study of solar radiation and shading on the indoor thermal environment was first carried out,considering the influence of factors such as the angle and size of the sunshade,material of the sunshade,and the orientation of the sunshade on the indoor thermal environment.Then,this study further explored the theoretical basis of photovoltaic system power generation and its influencing factors,such as solar radiation intensity,materials and models of photovoltaic modules,etc.These research results provide a theoretical basis for the design and dynamic control of photovoltaic shading systems,and help to improve the energy efficiency and performance of photovoltaic shading systems.At the same time,this study also provides a reference for further research on the application of photovoltaic facade shading systems in buildings.In addition,this paper selects the prototype of a typical office building unit in a multi.climate zone,and verifies the dynamic simulation of typical extreme seasons based on Rhino’s Ladybug and dragonfly plug.ins through physical measurements.Combined with a comprehensive calculation method,the maximum power generation and energy consumption are minimized as Optimizing the goal,systematically explored the dynamic adjustment mechanism of the integrated photovoltaic sunshade on the facade,revealed the influence relationship between the key design parameters such as the sunshade angle and height of the photovoltaic sunshade,its power generation capacity and comprehensive energy consumption,and put forward a proposal for different Dynamic adaptation strategies corresponding to climate zones.The research results show the significant energy.saving potential of dynamic adjustment,pointing out that the indoor heat gain can be reduced with lower shading height in summer,and more solar heat radiation can be obtained indoors with higher shading height in winter.Effective dynamic adaptation strategies such as adjusting the angle of shading hourly according to the angle change.The research can provide scientific design basis and strategic guidance for the dynamic control of building facade photovoltaic shading under different climatic conditions.