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With the wide application of flexible AC transmission system (FACTS) in power system, one of the major directions of FACTS development is the research of multi-FACTS coordinated control based on wide-area measurement system (WAMS). In this study, the wide area centralized coordination control architecture is established. Based on the structure of the dynamic output feedback control and the theory...
In this paper, a trajectory-based optimization method to design FACTS in power systems is proposed, in which both the quality of transient process and the investment cost of FACTS devices can be judiciously considered. To solve this high nonlinear optimization problem, an improved differential evolution (DE) method is proposed. In the DE evolution, a chaotic operation is introduced in the algorithm...
As a substitute to discrete cosine transform (DCT), a more complicated transform scheme has been adopted in H.264/AVC and inherited by H.264/SVC. For supporting the scalability, H.264/SVC incorporates the inter-layer prediction mechanisms, which lead to the variety of the composition of residual frame as the input of the transform. However, so far scarcely any study has been carried out on the transform...
A novel rate control scheme for H.264/SVC base layer is presented in this paper. At first, a new mean-absolute-difference (MAD) estimation method is introduced to replace the traditional MAD linear prediction model. This new method could reduce the computation complexity sharply and decrease the MAD estimation error by up to 35.6%. Then, the quadratic rate quantization (R-Q) model and the linear R-Q...
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