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Severe fluctuation of power output is a common problem in the various generating systems of renewable energies. The hybrid energy storage system with water and soil is adopted to decrease the fluctuation of solar chimney power generating systems in the present research. The mathematical models of fluid flow, heat transfer and power output features of solar chimney power generating systems including...
Rub is a common fault of rotating machinery. It will bring serious damage to mechanical equipment. A new diagnosis method based on empirical mode decomposition (EMD) and support vector machine (SVM) is proposed. Firstly, signals are decomposed into a finite number of intrinsic mode functions (IMFs).Then, the maximal singular values of the every single of IMF are defined as the feature vectors and...
Rub-impact fault is a common fault of rotating machinery. It will bring serious damage to mechanical equipment. A new diagnosis method based on wavelet packet and support vector machine (SVM) is proposed. The maximal singular values of wavelet packet decomposition coefficients are extracted as robust feature vectors. A new multi-class SVM classifier is constructed in "one versus one" classification...
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