Indices system to analyze the characteristics of air conditioning electrical loads of regional buildings and a case study

Abstract:

The load of regional buildings is the orderly coupling of the loads of different type of buildings in the region, and the mastery of electrical load characteristics are the basis of regional energy planning. To analyze the characteristics of the air conditioning electrical loads of regional buildings, an analytic indices system was established from the perspectives of dynamic features, load fluctuation features, and the load coupling relationship between the individual buildings and the regional buildings. Geographic Information System was used to visualize the characteristics of the regional loads. A typical university campus was taken as an example, and the characteristics of the air-conditioning electrical loads of the buildings on this campus were analyzed. In terms of load level, research buildings and office buildings had the highest load; teaching buildings had smaller unit area load but higher daily peak load and daily average load compared with dormitory buildings.The fluctuation of the daily and weekly load was small for research buildings and dormitories, while office buildings and teaching buildings fluctuated greatly. As for the contribution of individual buildings to the regional load, research buildings, office buildings, and teaching buildings had the larger contribution to the regional peak load, while the dormitories contributed smaller. The pattern and the length of the building operation are important factors that affect the load characteristics. The regional load characteristics are related to the types and numbers of buildings, and the appropriate proportion of building types can reduce the fluctuation of the regional load. Different indices focus on different points, and the indices system developed in this paper can fully reflect the regional load characteristics and the coupling relationship with individual buildings.