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An accurate model of large scale wind farm is demanded for researches about the impacts on the power grid. The total number of wind energy generators is so large that the detailed model of wind farm is computationally prohibitive. Dynamic equivalence can significantly reduce system order with the major characteristics retained. So the aggregation of large scale wind farm is inevitable. An overview...
This paper presents a novel group multi-criteria decision-making method for power system skeleton restoration. The proposed method improves the technique for order preference by similarity to an ideal solution (TOPSIS) in supporting group decision-making. This method can comprehensively consider the safety margin and restoration rate of power system, and can be used to support the restoration decision-making...
To assist dispatchers to on-line monitor small signal stability of power grid, this paper proposed an artificial intelligent method-Case-Based Reasoning(CBR) theory to predict small signal stability based on measurement data of wide area measurement system (WAMS). Oscillatory active power increment distribution (OAPID) was introduced to improve the prediction accuracy. The designing process of small...
Abstracting the general concept of information and relative state of element, based on the structure and state research of complex network, this paper takes the branch potential energy as edge weight into the complex network modeling process of power system. It analyzes the physical meaning of element information and clarifies the physical meaning of the network parameters including steady energy...
The idea of smart grid is currently receiving much attention. However, there are differences in understanding of concept of smart grid and in how this concept should be implemented. Moreover, there is no clear agreement, worldwide, on what a power grid must include in order to be considered as smart grid. The fact is that with a growing demand for reliable and sustainable power supply, there is a...
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