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in order to more fully and high efficiency in the use of solar energy, it is generally used to track the sun way to maximize more light energy. There is a kind of design scheme about solar energy automatic tracking device in this paper. This method combines the advantage of optoelectronic tracking detection mode and Calculation of sun position tracking mode, then put forward a kind of dual mode solar...
Along with the sharp increase in the proportion of wind power supply some areas; the impact of Large-scale wind farms for the stability of regional power grid is more significant. The research on low voltage ride-through (LVRT) of wind power system based on doubly-fed induction generators (DFIG) becomes a hot issue. In this paper ,Firstly introduces the concept of low voltage ride-through technology,...
Grid Inverter Device is the core device to connect Micro power grid with utility grid. Before grid, it requests the output voltage of inverter device and voltage of power network with the same frequency and phrase. The paper presents the grid inverter device digital phase locker technique based on TMS320F2407. The simulation result show that output current can track the grid voltage quickly and reliably...
Kernel function parameter selection is one of the important parts of support vector machine (SVM) modeling. In this paper, we analyzed the features of double linear search method and the grid search method selection method features and the algorithm implementation steps, which consider the selection of RBF kernel function parameter as an example, based on the analysis it is also given the double linear...
Support vector machines (SVM) based on structural risk minimization principle demonstrates the better learning ability for decision-making. Since the normal SVM is deduced from two classifications, it faced difficulty in solving the multi-class classifications like the shift decision of the engineering vehicle. Here we present shift decision algorithm which is based on SVM -binary tree multi-class...
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