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Aiming at serious harm caused by reactive power of power grid, the reason why SVG can compensate the reactive power is analyzed. Direct current control based on the detection method of source current is selected. SVG with resistive inductive load is simulated by Simplorer. Operational performance is analyzed in detail. The simulation result verifies that if SVG and power grid are connected in parallel...
In order to make evaluation on oil company marketing force level based on dynamical hypothesis, this paper uses k-means cluster to classify and analyze the effect of marketing flow and finds oil company marketing force can be divided into three categories and the standard of classification is essential the marketing flow. BP, Exxon-Mobil and Shell belong to the first category, giving evaluation rank...
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