To improve the detection accuracy and reduce the error between the detection results and the actual start and end times of disturbances with respect to electric quality multi-disturbance signals of new energy generations,this work made a preliminary attempt to establish an automatic detection method.First the mathematical morphology theory was in-troduced to denoise and filter electric quality signals.Based on this,combined with grid fractal theory,time location and automatic detection of multi-disturbance signals were achieved.The proposed method was indicated,by a case test,highly accurate in locating the occurrence time of signal disturbance,and thereby potentially promising.
new energy generationqualitysignalmulti-disturbanceelectric energy
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