Design of a solar tracking parallel mechanism with low energy consumption

Altuzarra, Oscar; Macho, Erik; Aginaga, Jokin; Petuya, V.

doi:10.1177/0954406214537249

Cited by 23 publications

(13 citation statements)

References 20 publications

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“…A controller which incorporates the advantages of two alternate design techniques (a deadbeat regulator for quick, rough control, and an LOG/LTR (Linear Quadratic Gaussian with Loop Transfer Recovery) regulator, for soft, final tracking) is presented in [35]; the first one performs approaching the target in a minimum of time; the second one allows a soft approach to the target. The first order Sugeno fuzzy inference system is utilized for modelling and controller design of an azimuth & elevation tracker [6]; in addition, an estimation of the incident radiation corresponding to the dual-axis tracking system is determined by fuzzy IF-THEN rules.…”

Section: Issn: 2668-0416mentioning

confidence: 99%

A Review on the Sun Tracking Mechanisms for Pv Strings

Alexandru¹

2019

JRISS

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This paper deals with a review on the solar trackers used for increasing the energetic efficiency of the photovoltaic (PV) strings. To begin with, the context from which the utility of the tracking mechanisms emerges is presented. The study continues with the systematization of the PV systems according to the structure that is oriented (i.e. the configuration in which the PV panels are disposed / arranged), presenting also the main advantages and disadvantages of the existing structures. Thus, it is retained as a solution for deepening the research that of the simultaneous orientation of the PV panels arranged in a string-like configuration. Afterwards, the study is focused on the main components that are taken into account in the design process of the tracking systems for PV strings, such as the tracking mode, the evaluation of the solar energy potential (involving the modelling of the solar radiation), the emplacement/disposing scheme of the panels in different array configurations, the mechanical and control devices of the solar trackers.

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Section: Issn: 2668-0416mentioning

confidence: 99%

A Review on the Sun Tracking Mechanisms for Pv Strings

Alexandru¹

2019

JRISS

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“…Parallel mechanisms have high stiffness and payload to weight ratio over the serial mechanism [16,17]. us, solar trackers can also be designed based on parallel mechanism to reduce the mounting dimensions and the complexity of the system with respect to the quantity of its assembly and components [18][19][20][21][22][23][24]. However, the main drawback of parallel solar tracker is the small workspace.…”

Section: Introductionmentioning

confidence: 99%

Energy Consumption Comparison of a Novel Parallel Tracker and Its Corresponding Serial Tracker

Cui

Jun

Zhang

et al. 2021

Mathematical Problems in Engineering

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A novel two-axis solar tracker with parallel mechanism is proposed in this paper. A dynamic model is derived by using the virtual work principle and the consumed energy including the mechanical energy and motor energy loss is computed. Taking Beijing as the working location of the solar tracker, the energy consumptions of the parallel solar tracker and its corresponding serial solar tracker are compared based on the premise that the proposed solar tracker and its corresponding serial solar tracker have similar static stiffness. Mechanical energy consumption of the proposed tracker is reduced by 7.55% compared to the serial solar tracker. The motor energy loss of the parallel solar tracker is also significantly lower. This simple and low-energy consumption solar tracker is a good alternative to the traditional solar tracker with large energy consumption.

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“…Hence the purpose of solar-tracking systems is to reduce the tracking error as much as possible, continuously during the daytime. Several studies have been done on this issue, looking for a good mechanism that can be applied to move a photovoltaic panel (see, for instance, the literature, [2][3][4][5] where different design techniques are followed). Examples of some existing solutions can be found in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…A possible critical issue with a slender structure is its stiffness, and detailed studies about this problem are now in development. 4. This project is at his early stage, and many further activities are required in order to design and build a real prototype.…”

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confidence: 99%

Solar.q_1: A new solar-tracking mechanism based on four-bar linkages

Quaglia

Maurino

2016

Proceedings of the Institution of Mechanical Engineers, Part C:

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This paper describes the early stages of the design process of a 2--DOF parallel mechanism, based on the use of 4--bar linkages and intended to move photovoltaic panels in order to perform sun tracking.Primary importance is given to the search for a way to compensate sun--earth's relative motions with two decoupled rotations of the panel. This leads to devise a kinematic struc-ture characterized by a particular arrangement of the revolute axes. At the same time, the structure itself is designed in order to be slender. Subsequently, the fact that during a day the earth's revolution around the sun has negligible effects on the apparent trajectory of the sun, if compared to the rotation around the polar axis, leads to choose a control strate-gy which, also thanks to the said arrangement of axes, employs only one DOF for most of the daytime. By means of computer simulations is proved that, so doing, are obtained neg-ligible tracking errors. The tracker which employs this strategy has, theoretically, an ener--Proc IMechE Part A: Journal of Mechanical Engineering Science 0(0) gy consumption similar to that of 1--DOF solar trackers but a precision similar to that of 2--DOF ones. KeywordsSolar--tracking mechanisms, 4--bar linkage, sun trajectory, kinematic analysis and simula-tion.

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Design of a solar tracking parallel mechanism with low energy consumption

Cited by 23 publications

References 20 publications

A Review on the Sun Tracking Mechanisms for Pv Strings

A Review on the Sun Tracking Mechanisms for Pv Strings

Energy Consumption Comparison of a Novel Parallel Tracker and Its Corresponding Serial Tracker

Solar.q_1: A new solar-tracking mechanism based on four-bar linkages

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