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Principal Component algorithms are widely used in active control applications, specially for applications of active vibration and noise cancellation in the aerospace industry. They are known to offer good adaptability characteristics and also provide a intuitive approach to deal with actuator saturation by limiting the control only to a significant number of modes. Existing stability results for such...
In a multivariable system, when multiple parameters jump simultaneously, a multiple models adaptive feedforward decoupling controller using hierarchical Dimension-By-Dimension technology is presented to solve the problems such as too many models, long computing time and so on. To find the optimal parameter, it adopts one-dimension search in series instead of multiple-dimension search in parallel....
To be clear of the default probability of electricity fees from power clients in advance and change the postmortem management mode to the preventive management mode, it would decrease the default risk greatly in the process of electricity sales in the utility. Based on the analysis of complicated reasons of default, the main elements whose effect on default are known, the risk model involved with...
In this paper, we derive a mathematical model for dual-rate systems and present a stochastic gradient identification algorithm to estimate the model parameters and an output estimation algorithm to compute the intersample outputs based on the dual-rate input-output data directly. Moreover, we investigate convergence properties of the parameter and intersample estimation, and we test the proposed algorithms...
A digital state feedback control method for the current mode control is proposed. This approach can precisely achieve the interleaved current sharing among the converter modules. As the controller design and system analysis are performed in the time domain, the proposed method can be easily satisfied to the required converter specification using the pole placement technique. For a design example of...
Active feedback control was used to modify the acoustic/structural dynamics in a reverberant acoustic enclosure. The physical system was modeled as a single-input, multi-output system and an H??, design approach was used to obtain a robust controller. Experimentally obtained results exhibited a significant reduction in the dominant acoustic modes. Furthermore, the controller was seen to be effective...
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