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Traditional automatic bus transfer methods have difficulty in correctly telling whether it is short-circuit fault or incoming line tripping by security and stability control devices which leads to bus voltage losing. It may cause automatic bus transfer device incorrect operation or refusing action, which effects the stable operation of the power system and reliability of power supply. This paper proposes...
To develop intelligent power grid, it will undertake more businesses. People put forward higher requirements to communication process in power grid. As the increasingly needs of complex business in power terminal communication access network, this paper proposes a new AQM algorithm which based on differentiated services. This new algorithm calculates the average queue length and takes into account...
In this paper, present situation and the features of wind power generation in China is introduced briefly, and the significance of determining wind power penetration percentage of wind farm is pointed out. According to the previous research, wind power penetration limit and short circuit capacity ratio are considered as the two main aspects, when wind power capacity limit is focused. The advantages...
Based on power electronic converting current devices which can be controlled quickly, VSC-HVDC system can regulate active power, reactive power, DC voltage, and line voltage flexibly. Different regulation strategies have different influences on the power system stability. A worse regulation strategiy may lead to sharp fluctuation of electrical measurements and longer regulation time, which is harmful...
K-means algorithm is widely used in spatial clustering. It takes the mean value of each cluster centroid as the Heuristic information, so it has some disadvantages: sensitive to the initial centroid and instability. The improved clustering algorithm referred to the best clustering centriod which is searched during the optimization of clustering centroid. That increased the searching probability around...
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