Based On The Fuzzy Pattern Recognition Load Current Waveform Data Detection

Along with national economy flourishing more and more daily, to uses electricity the safe request more and more to be also high. On the one hand uses electricity the load existence massive high efficiency electric appliance, on the other hand gets older with the electric appliance, causes to use electricity becomes safely mainly uses electricity the question. To uses electricity the load to carry on the real-time monitor, the analyzer running status, the realization online control and the diagnosis.The traditional load examination method is simple, the examination system function quite is unitary, the analysis method too is simple. This article chooses the examination load current and carries on mathematics operation analysis to the electric current. Through does the examination load movement time electric current, whether and carry on the analysis judgment load normal work to the electric current data. Load current profile data gathering and the profile analysis are study the load nature an important way. the recognition load mainly use in move the situation real-time monitor to the load and the thunderbolt control. The research load current waveform can the effective grasping load movement situation data, be able to adjust, the control load through the data analysis, in which profile data analysis is the monitor and the control key.This article uses electricity the load by the office to take the object of study, uses electricity the load current waveform through the examination, carries on the analysis to the profile data, then recognition load nature and type. Mainly carries on in the load current wave test process using the current transformer the load current the transformation, simultaneously turns on the synchronized signal to carry on the contrast to use in the profile the analysis. Mainly transforms in the profile data analysis process using the Fourier transformation the profile from the time domain to the frequency range, separates the fundamental wave, the triple frequency, five sub harmonics. The load recognition mainly uses is the fuzzy pattern recognition, chooses the appropriate degree of membership function, the seeking degree of membership distance and carries on the profile contrast analysis.In load current profile gathering, the manufacture current waveform gathering electric circuit board, the examination process must be short is disturbed, the guarantee profile authenticity and the integrity; Utilizes before the Fourier transformation in the current waveform analysis process must guarantee the profile not distorted; When solution membership function degree of membership distance may use the method which the western-style distance solves. The processing profile data uses the MATLAB software.This article in the consult correlation data foundation, first penetrates understood the wave test the principle, proposed the related examination plan, has determined the system frame; Carries on the correlation to the profile analysis method the supposition and the determination. The hardware and the software concrete realization, the final simulation system draws the conclusion.