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A novel method of calculating line loss in transformer district is presented and realized by programming, which is Back Propagation (BP) network model based on Levenberg-Marquardt (LM) algorithm. Establish the characteristic index system according to electric characteristics parameters of samples. The classification of samples by K-Means clustering algorithm solves the numerical dispersion of line...
To supply the cathode voltage for the two gyrotrons (140 GHz/1 MW/3 s) of the electron cyclotron resonant heating system on HL-2A, a high-voltage power supply (HVPS) based on pulse step modulator (PSM) with rated output of 80 kV/200 A has been built. Because the storing energy of the PSM HVPS is much lower than traditional HVPS, it is beneficial to load protection. In the PSM HVPS, there are eight...
Scientific and reasonable classification of electricity consumer is the very premise of the fair pricing of electricity tariff. The great amounts of electricity consumers make it impossible to neglect the difference of their load curves when classifying them. The theoretic classification results are not operable to implement the practical electricity tariff. Thus, establishing the proper electricity...
This article applies principal component analysis (PCA) and cluster analysis to solve the customer classification problem of an actual power supply network. First, the article defines the index system which will influence the cost of power supply significantly. The index system includes power supply, maximum need, load rate etc. Second, the article uses PCA to filter the source data from these index...
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