Research On The Problem Of Electrical Energy Saving Building

At present,all countries in the world are faced with the severe challenge of excessive energy consumption and heavy environmental pressure.With the outbreak of the energy crisis,various countries have made corresponding technical standards and adopted many effective energy-saving measures.In China,as the economic pillar industry,building energy consumption accounts for a large proportion of the total energy consumption,so building energy conservation is an urgent problem to be solved.In building energy consumption,building electrical energy consumption accounts for more than 80%,which is an important part of building energy consumption.Therefore,it is urgent to solve the problem of building electrical energy saving.This paper first introduces the advanced experience accumulated in the development process of building energy conservation in developed countries,and then based on the national conditions,introduces the relevant standards and measures adopted in the field of building energy conservation in China,and finally introduces the main research content of this paper.First of all,the energy-saving technical theory of building electrical is elaborated in detail,and the energy-saving technical characteristics of energy-saving transformers,frequency converters,fans,pumps and elevators are summarized.In terms of energy saving effect and economic benefit,it compares with the application technology of traditional electrical equipment,and highlights the energy saving advantages of new building electrical equipment.In addition,the energy saving technology of building electrical lighting is analyzed in detail,and the contents of the four aspects,such as lighting energy saving lamps,rational lighting distribution,optimal design of lighting distribution system,and effective means of lighting control mode,are elaborated in detail.By summarizing these energy saving methods and combining with the DIALux lighting design software,the project cases are simulated and analyzed,which further reflects the practical application of lighting energy saving technology in the field of building electrical engineering.Secondly,the classification,composition and working principle of building electrical photovoltaic power generation system are introduced.Combined with theactual case,through the simulation analysis of PVsyst photovoltaic design software,highlight the energy-saving advantages of photovoltaic power generation technology from two aspects of system power generation and economic benefits.Thirdly,the harmonic current detection method based on instantaneous reactive power theory is introduced,and the calculation method of harmonic current detection is modeled by Matlab algorithm software and Simulink tool library.At the same time,the control strategy of active power filter based on instantaneous reactive power theory is studied,and a hybrid active power filter system is constructed,combined with the simulation software,the effective measures of harmonic control are put forward through the specific waveform and simulation data.Finally,this article relies on a city hospital in the north.,this paper makes a detailed analysis of electric energy saving technology from four aspects,including power supply design scheme,lighting design scheme,photovoltaic power generation design scheme and harmonic control scheme.Combined with DIALux lighting design software,PVsyst photovoltaic design software and Matlab algorithm software,the hospital was simulated and analyzed.Through the concrete simulation graphics and data,the energy saving effect of the above energy saving measures applied in the hospital design scheme is reflected.