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In this paper, a new frequency estimation algorithm based on the DFT (Discrete Fourier Transform) is proposed to increase the estimation accuracy. The proposed algorithm consists of three stages such as DFT, frequency estimation and error compensation, and iterative loop. First, the input voltage signal is decomposed into two components by using DFT. Secondly, the two components, the real part and...
A protection algorithm using a voltage-controlled overcurrent element for a looped collection circuit in a wind farm is suggested in this paper. Because the proposed algorithm uses voltage relaying signals as well as current relaying signals, any fault in the looped collection circuit can be cleared by voltage-controlled overcurrent relays located at the two adjacent relaying points, the nearest place...
This study approaches a two-dimensional rectangular plane figure mathematically in order to improve a calculating method for a numerical value concerning the volume of inflow information based on all related items such as the traditional traffic input ratio measurement method, the width of network broadband, and transfer speed, as an information flow; thus, it deduces a ratio formula that calculates...
In this paper, we present a spatially adaptive gradient-projection algorithm for H.264 video coding standard to remove blocking artifacts using local statistics. The proposed approach is based on the regularized iterative techniques. In order to complement the weak points of the Constraint Least Squares (CLS) method, we combine the projection method with the CLS method. In order to adaptively process...
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