this paper presents an application of the reference multifunction method to design decision support systems dedicated to selecting optimal reservoir control strategies in case of a flood emergency. We assume that in t...
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this paper presents an application of the reference multifunction method to design decision support systems dedicated to selecting optimal reservoir control strategies in case of a flood emergency. We assume that in the region endangered by the flood, there are several water reservoirs, each with a separate direction, economical goals, and protection subregion. Reservoirs on the same river may form subsystems with common goals. We investigate a frequent case where all reservoirs are situated on feeders while the flood wave on the recipient between and beneaththe feeder mouths can be controlled by a coordinated release of water from the reservoirs. the reservoirs' own protection regions do not include the recipient's valley. Flood damage is minimized by a suitable dynamic multicriteria coordination withthe environmental, financial and human life protection-related criteria. the coordinating decision center assures that the values of the individual reservoir criteria are non-dominated and belong to a given reference set. the latter can be interpreted as acceptable values of criteria on a certain subinterval of the control period. We provide an approach to finding a non-dominated trajectory of the overall reservoir system that fulfils the above coordinator's demands. We also describe the architecture of the decision support system capable of solving the coordination problem in real-time. A real-life example of finding a flood-control strategy for the reservoir system in the Upper Vistula basin in Poland will be presented.
A forward converter is used for high-efficiency dc to dc converter applications. Modeling and control of a two-switch forward converter suitable for a wide range of input voltage applications is presented in this work...
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ISBN:
(数字)9798350362343
ISBN:
(纸本)9798350362350
A forward converter is used for high-efficiency dc to dc converter applications. Modeling and control of a two-switch forward converter suitable for a wide range of input voltage applications is presented in this work. the third-order model for continuous conduction mode operation of the converter is considered for closed-loop operation for achieving output voltage regulation. the performance of a model-predictive controller vis-a-vis conventional proportional-integral and sliding-mode controllers is evaluated through simulation of the closed-loop forward converter with a voltage variation of 550V to 1000V as input and fixed output voltages of 15V and 24V.
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