Contribución al estudio de la generación de energía eléctrica a partir de materiales piezoeléctricos

Rodríguez, Manuel Vázquez

doi:10.20868/upm.thesis.53946

Cited by 3 publications

(3 citation statements)

References 102 publications

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“…The influence of the rate of traffic (vehicles/minute) and of peak-to-peak piezoelectric voltage on the harvested power was discussed in [21]. The topologies of associated harvesters verify the modeling process described in References [19,20,21].…”

Section: Energy Harvesting Resultsmentioning

confidence: 85%

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A New Prospect in Road Traffic Energy Harvesting Using Lead-Free Piezoceramics

et al. 2019

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In this paper, a new prospect using lead-free piezoelectric ceramics is presented in order to determine their behavior in piezoelectric-based road traffic energy harvesting applications. This paper will describe the low-cost and fully programmable novel test bench developed. The test bench includes a traffic simulator and acquires the electrical signals of the piezoelectric materials and the energy harvested when stress is produced by analogous mechanical stimuli to road traffic effects. This new computer-controlled laboratory instrument is able to obtain the active electrical model of the piezoelectric materials and the generalized linear equivalent electrical model of the energy storage and harvesting circuits in an accurate and automatized empirical process. The models are originals and predict the extracted maximum power. The methodology presented allows the use of only two load resistor values to empirically verify the value of the output impedance of the harvester previously determined by simulations. This parameter is unknown a priori and is very relevant for optimizing the energy harvesting process based on maximum power point algorithms. The relative error achieved between the theoretical analysis by applying the models and the practical tests with real harvesting systems is under 3%. The environmental concerns are explored, highlighting the main differences between lead-containing (lead zirconate titanate, PZT) and lead-free commercial piezoelectric ceramics in road traffic energy harvesting applications.

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Section: Energy Harvesting Resultsmentioning

confidence: 85%

“…This paper will describe the low-cost original and fully programmable instrument developed by some of the authors at the Universidad Politécnica de Madrid [19]. This test bench is able to obtain accurate models of piezoelectric-based energy harvesters and carry out the accelerated tests in a much more economically affordable way.…”

Section: Introductionmentioning

confidence: 99%

A New Prospect in Road Traffic Energy Harvesting Using Lead-Free Piezoceramics

et al. 2019

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“…The piezoelectric transducers used are piezoelectric cables. These piezoelectric devices are commonly used in traffic management and have, in recent years, also been used in the development of road traffic infrastructure [ 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. This type of transducer is usually used in electronic instrumentation dedicated to traffic management for vehicle counting and weighing (only if the vehicle is traveling at low speed).…”

Section: System Hardwarementioning

confidence: 99%

A Virtual Instrument for Road Vehicle Classification Based on Piezoelectric Transducers

González

Jiménez

Frutos

2020

Sensors

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This paper describes a virtual instrument capable of the automatic and quasi-instantaneous classification of a vehicle according to category when it is driving along the road. The vehicle’s classification is based on accurate measurements of both the vehicle’s speed and its wheelbase. Our research is focused on achieving accurate speed and wheelbase measurements and then determining the category of the vehicle through the developed software. The vehicle categorization is based on the wheelbase measurements and the number of axles and metal masses of the vehicle. The system has a complementary magnetic sensor, which helps in classifying the vehicle when the wheelbase measurement could be representative of different categories, and a camera to confirm the results of the experiment. The proposed measurement system presents a novel method for classifying vehicles according to type using piezoelectric transducers (piezo sensors). In addition, no system references have been found that encompass the functionalities of the presented system based on the information of only two piezoelectric transducers. The system has important advantages over current alternatives (systems based on inductive loops, cameras, fiber optic sensors or lasers), the installation is simple and non-invasive and with a success rate of the classification greater than 90%. The system consists of a signal acquisition point on the pavement, signal conditioning hardware and a data acquisition (DAQ) module, which links the hardware and the virtual instrument developed in LabVIEW®. Finally, the system has been tested on the road with real traffic, and the experimental results are presented and discussed in this paper.

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Medidor bidireccional trifásico interconectado a la red con monitoreo de la generación de energía eléctrica del conjunto panel-microinversor

Hernández-Aguirre

Tánori-Ruíz

Orrante-Sakanassi

et al. 2019

JEE

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The main objective of this paper is to present the activities carried out and the results obtained during the design of a three-phase bidirectional meter for a photovoltaic system interconnected to the network. The tests for validation and start up of the bidirectional meter used for wireless measurement and monitoring of the main consumption parameters and electric power generation are described: voltage, current, active power (W), apparent power (VA), power factor and power consumption (kWh). This bidirectional meter was born as a proposal to solve the problem related to the measurement of electric power in photovoltaic systems interconnected to the network, since the bidirectional meters currently installed by the power company (CFE, Comisión Federal de Electricidad) have an inconvenience, they can only be distributed and installed by the same company. It is a low cost and easy installation bidirectional meter. The main advantage of this bidirectional meter is the facility offered to the user to read and understand the readings of the measurements made, displayed on a personal computer screen or a mobile application. Furthermore, the history of the power consumption (kWh) show in the meter database helps the user in making decisions regarding cost reduction.

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Contribución al estudio de la generación de energía eléctrica a partir de materiales piezoeléctricos

Cited by 3 publications

References 102 publications

A New Prospect in Road Traffic Energy Harvesting Using Lead-Free Piezoceramics

A New Prospect in Road Traffic Energy Harvesting Using Lead-Free Piezoceramics

A Virtual Instrument for Road Vehicle Classification Based on Piezoelectric Transducers

Medidor bidireccional trifásico interconectado a la red con monitoreo de la generación de energía eléctrica del conjunto panel-microinversor

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