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Uncertainty and variability are the inherent factors in modern power systems with increasing number of intermittent power resources such as wind and solar integration. This paper presents a novel probabilistic approach to evaluate the power grid with Fault Ride-Through consideration of the wind generation. Low Voltage Ride-Through regulation applied in China grid is investigated in this paper. Critical...
Mass property of space vehicle changes apparently during and after mating and cannot be predicted or measured at times, yet it needs to be accurately known for mated flight control or attitude control and momentum management. A discrete Kalman Filter (KF) based estimation method is developed, measurements of single point acceleration, angular velocity and angular acceleration are employed to extract...
In this paper, a computer application program to process electronic microscope images of plant pollen is presented. We use contrast enhancement to separate pure object pollen from original image. Hough edge detector is used to extract complete and inside-detail-kept edges from pure object image for recognition. Pre-process such as smoothing, grayscale equipoise, etc., is performed to remove noise...
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