中文说明：&电能质量问题
English Description：
Power quality problem are frequent in most of commercial, industrial and utility networks. Phenomena, such as lightning, load variation and capacitor switching are some of the most frequent causes of power quality problems. The impact of PQ problems is aggregated through proliferation of extremely sensitive computerized equipment. As the design of most conventional equipments such as lights, constant speed motors and power systems are based on the assumption that the voltage source are sinusoidal and the loads are linear, so that the resulting waveforms are also sinusoidal. Consequently, power quality monitoring and classification has become an essential service which many utilities perform for their customers. Click the file on the left to start the preview,please ！The preview only provides 20% of the code snippets, the complete code needs to be downloaded Loading Report