The Experts below are selected from a list of 171 Experts worldwide ranked by ideXlab platform
M Ibanez - One of the best experts on this subject based on the ideXlab platform.
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design and simulation of a low concentrating photovoltaic thermal System
Energy Conversion and Management, 2005Co-Authors: J I Rosell, X Vallverdu, M A Lechon, M IbanezAbstract:The advantages of photovoltaic/thermal (PV/T) collectors and low solar concentration technologies are combined into a photovoltaic/thermal System to increase the solar energy conversion efficiency. This paper presents a prototype 11X concentration rate and two axis Tracking System. The main novelty is the coupling of a linear Fresnel concentrator with a channel photovoltaic/thermal collector. An analytical model to simulate the thermal behaviour of the prototype is proposed and validated. Measured thermal performance of the solar System gives values above 60%. Theoretical analysis confirms that thermal conduction between the PV cells and the absorber plate is a critical parameter.
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Design and simulation of a low concentrating photovoltaic/thermal System
Energy Conversion and Management, 2005Co-Authors: J I Rosell, X Vallverdu, M A Lechon, M IbanezAbstract:The advantages of photovoltaic/thermal (PV/T) collectors and low solar concentration technologies are combined into a photovoltaic/thermal System to increase the solar energy conversion efficiency. This paper presents a prototype 11X concentration rate and two axis Tracking System. The main novelty is the coupling of a linear Fresnel concentrator with a channel photovoltaic/thermal collector. An analytical model to simulate the thermal behaviour of the prototype is proposed and validated. Measured thermal performance of the solar System gives values above 60%. Theoretical analysis confirms that thermal conduction between the PV cells and the absorber plate is a critical parameter.
Xiaoyang Yuan - One of the best experts on this subject based on the ideXlab platform.
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Backstepping designed sliding mode control for a Two-Axis Tracking System
2010 5th IEEE Conference on Industrial Electronics and Applications, 2010Co-Authors: Zhiming Zhao, Xiaoyang YuanAbstract:This paper develops backstepping-sliding mode control method for multi-input and multi-out nonlinear System. In order to solve the chattering problem, three continuous functions are introduced and the error function is employed as the sliding surface function finally after detailed comparison. Certain kind of Two-Axis Tracking System is taken as an example. And dynamic model of the System is established based on Lagrange-Maxwell electromechanical equations, and controller designing based on the above developed control method is presented in detail. The simulation using Matlab are presented, which obtained controllers on the basis of backstepping method and backstepping-sliding mode control method, respectively. Comparison between them indicates that it is proper and effective for the Two-Axis Tracking System to employ the controller designed based to backstepping-sliding mode control method. Simulation results based on improved sliding surface function are also presented which prove it is applicable to use error function in backstepping-sliding mode control method. Based on simulation results presented, the position Tracking accuracy of the Two-Axis System can meet the project's need.
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Modelling and simulation of a Two-Axis Tracking System
Proceedings of the Institution of Mechanical Engineers Part I: Journal of Systems and Control Engineering, 2010Co-Authors: Z. M. Zhao, Xiaoyang Yuan, F. Xu, Zhen LiAbstract:In this paper, the modelling and simulation of a Two-Axis Tracking System are introduced. First, dynamic modelling of a Two-Axis Tracking System that is based on the Lagrange-Maxwell dynamic equation is presented. According to the established dynamic equation the coupling of System velocity and the inertia characteristics between the two axes are analysed. Then, the controller of the Tracking System is designed using the inverse System method. Based on a certain type Two-Axis Tracking System, the simulation is then made with MATLAB/Simulink, which includes position Tracking and Tracking error analysis. The simulation using Adams and Simulink is also presented. A comparison of the results from the two kinds of simulation indicates that the modelling of the Two-Axis Tracking System is reasonable and the simulation results are rational.
J I Rosell - One of the best experts on this subject based on the ideXlab platform.
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design and simulation of a low concentrating photovoltaic thermal System
Energy Conversion and Management, 2005Co-Authors: J I Rosell, X Vallverdu, M A Lechon, M IbanezAbstract:The advantages of photovoltaic/thermal (PV/T) collectors and low solar concentration technologies are combined into a photovoltaic/thermal System to increase the solar energy conversion efficiency. This paper presents a prototype 11X concentration rate and two axis Tracking System. The main novelty is the coupling of a linear Fresnel concentrator with a channel photovoltaic/thermal collector. An analytical model to simulate the thermal behaviour of the prototype is proposed and validated. Measured thermal performance of the solar System gives values above 60%. Theoretical analysis confirms that thermal conduction between the PV cells and the absorber plate is a critical parameter.
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Design and simulation of a low concentrating photovoltaic/thermal System
Energy Conversion and Management, 2005Co-Authors: J I Rosell, X Vallverdu, M A Lechon, M IbanezAbstract:The advantages of photovoltaic/thermal (PV/T) collectors and low solar concentration technologies are combined into a photovoltaic/thermal System to increase the solar energy conversion efficiency. This paper presents a prototype 11X concentration rate and two axis Tracking System. The main novelty is the coupling of a linear Fresnel concentrator with a channel photovoltaic/thermal collector. An analytical model to simulate the thermal behaviour of the prototype is proposed and validated. Measured thermal performance of the solar System gives values above 60%. Theoretical analysis confirms that thermal conduction between the PV cells and the absorber plate is a critical parameter.
X Vallverdu - One of the best experts on this subject based on the ideXlab platform.
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design and simulation of a low concentrating photovoltaic thermal System
Energy Conversion and Management, 2005Co-Authors: J I Rosell, X Vallverdu, M A Lechon, M IbanezAbstract:The advantages of photovoltaic/thermal (PV/T) collectors and low solar concentration technologies are combined into a photovoltaic/thermal System to increase the solar energy conversion efficiency. This paper presents a prototype 11X concentration rate and two axis Tracking System. The main novelty is the coupling of a linear Fresnel concentrator with a channel photovoltaic/thermal collector. An analytical model to simulate the thermal behaviour of the prototype is proposed and validated. Measured thermal performance of the solar System gives values above 60%. Theoretical analysis confirms that thermal conduction between the PV cells and the absorber plate is a critical parameter.
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Design and simulation of a low concentrating photovoltaic/thermal System
Energy Conversion and Management, 2005Co-Authors: J I Rosell, X Vallverdu, M A Lechon, M IbanezAbstract:The advantages of photovoltaic/thermal (PV/T) collectors and low solar concentration technologies are combined into a photovoltaic/thermal System to increase the solar energy conversion efficiency. This paper presents a prototype 11X concentration rate and two axis Tracking System. The main novelty is the coupling of a linear Fresnel concentrator with a channel photovoltaic/thermal collector. An analytical model to simulate the thermal behaviour of the prototype is proposed and validated. Measured thermal performance of the solar System gives values above 60%. Theoretical analysis confirms that thermal conduction between the PV cells and the absorber plate is a critical parameter.
M A Lechon - One of the best experts on this subject based on the ideXlab platform.
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design and simulation of a low concentrating photovoltaic thermal System
Energy Conversion and Management, 2005Co-Authors: J I Rosell, X Vallverdu, M A Lechon, M IbanezAbstract:The advantages of photovoltaic/thermal (PV/T) collectors and low solar concentration technologies are combined into a photovoltaic/thermal System to increase the solar energy conversion efficiency. This paper presents a prototype 11X concentration rate and two axis Tracking System. The main novelty is the coupling of a linear Fresnel concentrator with a channel photovoltaic/thermal collector. An analytical model to simulate the thermal behaviour of the prototype is proposed and validated. Measured thermal performance of the solar System gives values above 60%. Theoretical analysis confirms that thermal conduction between the PV cells and the absorber plate is a critical parameter.
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Design and simulation of a low concentrating photovoltaic/thermal System
Energy Conversion and Management, 2005Co-Authors: J I Rosell, X Vallverdu, M A Lechon, M IbanezAbstract:The advantages of photovoltaic/thermal (PV/T) collectors and low solar concentration technologies are combined into a photovoltaic/thermal System to increase the solar energy conversion efficiency. This paper presents a prototype 11X concentration rate and two axis Tracking System. The main novelty is the coupling of a linear Fresnel concentrator with a channel photovoltaic/thermal collector. An analytical model to simulate the thermal behaviour of the prototype is proposed and validated. Measured thermal performance of the solar System gives values above 60%. Theoretical analysis confirms that thermal conduction between the PV cells and the absorber plate is a critical parameter.
