Practice of Exploratory Experimental Teaching of Power Quality Detection Based on Mode Decomposition
In response to the teaching difficulties of the"Modern Signal Processing"course,an exploratory exper-imental teaching simulation and practice were conducted using the modal decomposition method(EMD)for detecting power quality disturbance signals as an example.In the process of teaching,students are guided to explore the problem of low accuracy of traditional EMD power quality detection method.Then,according to the research results,a power quality disturbance detection method ofSVD-ICEEMDAN-PE which can improve the precision is proposed by integrating a variety of modern signal processing technologies such as SVD filtering,ICEEMDAN and permutation en-tropy(PE).On this basis,several simulation experiments such as signal noise reduction,algorithm performance anal-ysis,disturbance signal detection and experimental signal detection are designed to verify the effectiveness of the method.The inquiry experimental teaching is the extension and expansion of theoretical teaching.The whole teaching pays attention to the student-centered,and guides students to experience the scientific research methods of thinking,exploration and problem-solving,so as to stimulate students'scientific research spirit of learning,knowledge and re-search.
Modern signal processingExploratory experimentPower qualityEmpirical mode decomposition
NETL
NSTL
万方数据
维普
