Research On Key Technologies Of Energy Coordination Control System For Photovoltaic Buildings

Photovoltaic buildings are one of the most common ways buildings use renewable energy.At present,photovoltaic buildings are developing in the form of clustering and scale,and gradually form a photovoltaic building group model.At present,the energy management system usually adopts a single system internal coordinated control scheme,and an integrated control scheme is rarely adopted for coordinated control between multiple systems.In this paper,the energy coordination control system of photovoltaic building group is studied.The specific work contents are as follows:1.The composition and classification of photovoltaic buildings are briefly described.The problems and shortcomings of the existing energy coordination control system of photovoltaic buildings are analyzed,and the key links of this paper are determined.2.Detailed analysis of each unit model of photovoltaic building,and corresponding acquisition methods for each unit power data.An exponential smoothing method power prediction method based on similar daily history data is proposed for the power generation unit.A battery charging and discharging optimization strategy is proposed for the battery unit.An electric vehicle charging and discharging optimization mode is proposed for the electric vehicle unit.3.Based on the power data acquisition results,the operating conditions,coordination mode and energy coordination control factors of the system are discussed in detail.Based on the construction of secondary energy network in photovoltaic buildings,an energy coordinated control strategy based on genetic algorithm is proposed.The coordination and energy saving effects of the algorithm are simulated and analyzed.Finally,an optimized scheduling scheme for each user-level photovoltaic building subsystem was obtained,which verified the applicability and accuracy of the energy coordination control strategy.4.Based on the proposed power acquisition method and energy coordination control strategy of photovoltaic building group,the energy coordination control system of photovoltaic building group is completed.The accuracy of the real-time power prediction method was tested on the experimental platform,and the feasibility of the energy coordination control strategy was verified.In this paper,the energy coordination control system of photovoltaic building group is discussed and studied in depth.The secondary energy network is constructed on the 380 V side of the photovoltaic building group to realize the resource sharing among the photovoltaic building user-level subsystems.Compared with the traditional energy management system,it can make full use of photovoltaic energy,reduce the capacity of each household energy storage device,and improve the level of system intelligence.The research conclusions of this paper have certain reference and guiding significance for the actual engineering of photovoltaic buildings.