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Normally power supplies provide a constant output voltage. A DC-DC converter in most of the applications is controlled by a voltage mode or a current mode controller. The DC converters are employed to feed electric vehicles, telephone sets and civil invertors, or for induction motors and frequency control. In this regard, optimal exploitation of DC transformed by classical controllers has been a controversial...
Nowadays, usage of artificial light as the supplemental light in greenhouse cultivations is one of the most common techniques to increase greenhouse productions. Greenhouse is part of the Smart Grid, where the activation of electricity energy market is applied. With Real-Time Pricing (RTP) of electricity energy, finding the optimum values of supplemental light for various cultivations and conditions...
In this paper, a hybrid load frequency controller for a network with two-area interconnected power system is presented to damp the deviations in frequency and tie line power due to load changes in each time. The system includes DC control interacting with the conventional AC area controls. The stability of the network in these two areas is controlled by a new control method. This method is a Model...
In this paper a novel method to the design of pole placement controller for Cuk converters is presented.This optimized method can control the voltage of DC-DC converter. In this method, average model of converter is employed and it is possible to approximate the system by a linear system and then linear control methods can be used. Pole placement as one of these methods is designed by a systematic...
In this paper, two different control methods on DC-DC Converter, are investigated. Lately, improvement the performance of the DC-DC converter is one of the goals of the engineers in the industries. In this paper, Pole Placement controller is used to optimize the DC-DC converter performance. Also other controller, by the way, Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) are used with...
Stabilizing power angle oscillation and torsional oscillation on the turbine-generator shaft using a linear feedback controller is investigated in this paper. In order to analysis the effect of this controller, a single machine connected through two transmission lines (HVAC and HVDC), to an infinite bus is used. To damp and control the oscillations in this system, after any change, a linear feedback...
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