The utilization of solar energy can be made by photovoltaic (PV) cells to generate electric power directly and solar thermal (T) panels can be applied to generate heat power. When the utilization of the solar energy i...
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The utilization of solar energy can be made by photovoltaic (PV) cells to generate electric power directly and solar thermal (T) panels can be applied to generate heat power. When the utilization of the solar energy is necessary to generate electric power, the option of using T panels in combination with some heat/electric power conversion technology can be a viable solution. The power generated by utilizing the solar energy absorbed by a given area of solar panel can be increased if the two technologies, PV and T cells, are combined in such a way that the resulting unit will be capable of co-generation of heat and electric power. In the present paper combined Photovoltaic/Thermal panels are suggested to generate heat power to produce hot water, while the photovoltaic part is used to obtain electric power mainly for covering the electric power consumption of the system, to supply the electronic control units and to operate pump drives etc. Ac and dc supplies are provided by converters for covering self-consumption and possibly the need of some household appliances. The development and design of the system is made by extensive use of modeling and simulation techniques. In the paper a part of the simulation studies, carried out to determine the energy balance in the electric energy conversion section of the system and the control structure, assuming stand-alone operation is presented.
The paper presents the results referring to the dc link voltage control of an induction generator/PWM converter system. This system can be used for the renewable energy sources in isolated areas. The voltage control i...
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The paper presents the results referring to the dc link voltage control of an induction generator/PWM converter system. This system can be used for the renewable energy sources in isolated areas. The voltage control is carried out with an adequate flux control based on an indirect rotor field oriented control.
The new LMI based method for robust stability analysis for linear uncertain system with PID controller is proposed. The general constrained structure of controller matrix is considered appropriate for both output feed...
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The paper deals with the frequency domain robust decentralized controller design technique for continuous-time uncertain systems given as a set of transfer function matrices. By applying the independent designs to ind...
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This work addresses the problem of detection and recognition of objects in two-dimensional images possessed by the camera which is placed on the UAV. We keen to multiple-objects, multiple-instances recognition with sc...
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ISBN:
(纸本)9806560841
This work addresses the problem of detection and recognition of objects in two-dimensional images possessed by the camera which is placed on the UAV. We keen to multiple-objects, multiple-instances recognition with scale, rotation and illumination invariance. Several approaches are discussed and some testing results are reported. Comparisons show that local descriptors based approaches outperform other approaches in the field.
This paper considers the design of robust servo-system for accurate tracking of complex referent signals in the presence of internal and external disturbances. Discrete-time sliding mode tracking controller is employe...
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This paper presents investigations at developing a hybrid iterative learning control scheme with acceleration feedback (PDILCAF) for flexible robot manipulators. An experimental flexible manipulator rig and correspond...
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The paper deals with the robust output feedback controller design with guaranteed cost and affine quadratic stability for linear continuous time systems. The proposed approach leads to an iterative LMI based algorithm...
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The constrained control of triple integrator based on the modes decomposition is introduced in this paper. The design combines the well known time optimal control with the linear pole assignment control, i.e. the cont...
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ISBN:
(纸本)0978672003
The constrained control of triple integrator based on the modes decomposition is introduced in this paper. The design combines the well known time optimal control with the linear pole assignment control, i.e. the control consist of n phases similar to the time optimal control, however the transients between these phases are "smooth" and the dynamics of the transients is given by the closed loop poles.
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