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By numerical simulation method Blocklis taken for example to evaluate the well pattern infilling effect in the process of waterfooding at the low permeability oilfield to give a reasonable injection-production ratio and to improve correlations between the corresponding injection and production. After well pattern infilling, along with the injection-production ratio increases, the composite development...
In this paper, a method is proposed for fast and accurate online detection of transient instability based on real-time measurement. The cluster of critical machines is determined and refreshed at each time. Determination of the irrevocable loss of synchronism is made based on the geometric characteristic of critical machines trajectory. Unlike the previous extended equal-area criterion method, it...
A new detection scheme for transient power systems instability with geometrical characteristics of trajectory in partial angle center is presented, and the generalized energy function is chosen to verify the validity. Avoiding seeking the center of whole system angle, this scheme gets rid of the limitation in the practical application. The method of instability detection using partial wide-area measurement...
In the operation of distribution system, if the tap of transformer and capacitors regulators were frequently changed, these devices would be easily damaged. So it is necessary to lower the tap-changing and capacitors regulators times. Due to the fact that capacitors exert smaller influence on the voltage level than transformers do, it is appropriate to first adjust the capacitors settings with tap...
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