Load Current Waveform Analysis Database Research

In the office building, office building in electrical equipment use and the number of species increases increasingly, however most of the operators lack professional knowledge of electrical equipment, it is difficult to achieve safe operation and energy saving using. The safe use of electricity, saving electricity, prevent work after the fire has become a very important problem. The current monitoring system for analysis and diagnosis technology of emerge as the times require.Therefore, this paper from the conservation of electricity, safe use of electricity, prevent electrical fire angle, through to the office building, office building of typical electrical equipment to undertake a large number of waveform acquisition, using a mathematical method for the acquisition of waveform analysis obtains a series of electrical equipment to distinguish species and whether the equipment aging characteristics, on the basis of VB for the front development language to build the Access database model and its application to the office building, office, dining room, laboratory and real life.A waveform acquisition is to use waveform detection equipment,oscilloscope by USB interface connected with an upper machine. And then the acquisition of large number of waveforms are normalized sort, select a representative current waveform as the experimental waveform specific analysis.This thesis focuses on the perceptual, resistive, capacitive and special circumstances of the waveform analysis and application study. According to the current waveform analysis of the characteristics of the volume of demand analysis, so as to establish the load current waveform analysis of database model, through the VB front-end development language database new current waveform feature extraction and able to new. old current waveform feature contrast, thereby identifying the operation state of the equipment and the degree of aging.If the system is applied to the office building, office building, able to timely repair or replacement to stop the operation of equipment, and can prevent the after work of electrical equipment to work, so as to achieve the purpose of power of science.