کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7122227 1461471 2018 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identification of optimal features for fast and accurate classification of power quality disturbances
ترجمه فارسی عنوان
شناسایی ویژگی های بهینه برای طبقه بندی سریع و دقیق اختلالات کیفیت قدرت
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
چکیده انگلیسی
This paper presents a classification method for power quality (PQ) disturbances by using efficient features of the PQ signals for an accurate classification with minimum computational complexity. Overall, 16 disturbance classes, including some combined disturbances, are considered based on the IEEE 1159 standard. A 6.4 kHz sampling rate is used on 10 cycles of distorted waveforms for the feature extraction by using different transform functions. The sequential forward selection, genetic and maximum relevance minimum redundancy algorithms are used for a precise selection of features. The selected features are input to different classifiers and their outputs are compared to find the best classifier. The effectiveness of the proposed method is studied for de-noised signals and the required features and classifier algorithms are presented for an optimum accuracy (99.31%) in lower computational complexity and higher accuracy (100%) in expense of computational complexity. Some features are presented for high accuracy classification of noisy signals with different noise levels without the requirement of de-noising preprocess. Accuracy of the method is validated by different simulation studies including the 3.2 kHz sampling rate for reduced computational complexity. As an alternative test method, the distorted waveforms generated by the Electro-Magnetic Transient Program (EMTP) are accurately classified.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 116, February 2018, Pages 565-574
نویسندگان
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