On the performance of commercial supercapacitors as storage devices for renewable electrical energy sources

Obreja, V.V.N.

doi:10.24084/repqj05.329

Cited by 9 publications

(10 citation statements)

References 6 publications

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“…However the voltage drop in each diode (0,7V) is responsible for a lower value that expected by equation (2). This value is according with simulation results in figure 5.…”

Section: Fig 5 Circuit Simulation Resultssupporting

confidence: 85%

“…Since low power consumption is involved, it's possible the use of Schottky diodes. With voltage drops of 0,32V at 1A according with datasheet, a increasing in voltage Vout becomes possible to approach equation (2).…”

Section: Fig 5 Circuit Simulation Resultsmentioning

confidence: 99%

“…Two main storage components can be used: batteries and supercapacitors. The use of supercapacitors has the following advantages: life cycle, which is at least two orders of higher magnitude than the corresponding one of lead acid batteries; long operation time in a temperature range of -40ºC to +60ºC; higher power capability; able to deliver for short time electrical energy at significantly higher power than batteries [2]. Energy harvesting is an area of rapid development, and the day approaches when component life rather than battery charge will limit low-duty-cycle sensor systems.…”

Section: Introductionmentioning

confidence: 99%

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A Three-Phase Microgenerator Based Solution for Power Harvesting Applications

Alves¹,

Fonseca²,

Pereira³

2013

REPQJ

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Abstract. With the fast growth of wireless communicationsbetween nodes/sensor units, devices installed in remote places require continuously energy supply for their functionality or communication requirements. For these applications energy harvesting takes place as a good solution to increase the availability of energy, in opposition to the conventional systems of energy supply. Regenerative energy sources like thermoelectric, magnetic, piezoelectric, and/or renewable sources such as photovoltaic and wind, among others, allowed the development of different powering solutions for sensor units. The purpose of this work is to characterize a three-phase micro generator that is used to convert the energy extracted from wind or water flow, among others mechanical energy sources, to electrical energy. The study is carried out taking into account the velocity of axis versus power provided to a load.

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“…However the voltage drop in each diode (0,7V) is responsible for a lower value that expected by equation (2). This value is according with simulation results in figure 5.…”

Section: Fig 5 Circuit Simulation Resultssupporting

confidence: 85%

Section: Fig 5 Circuit Simulation Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Three-Phase Microgenerator Based Solution for Power Harvesting Applications

Alves¹,

Fonseca²,

Pereira³

2013

REPQJ

View full text Add to dashboard Cite

show abstract

“…Two main storage solutions can be used: batteries and supercapacitors. The use of supercapacitors has the following advantages: life cycle, which is at least two orders of magnitude higher than the corresponding one of lead acid batteries; long operation time in a temperature range of -40ºC to +60ºC; higher power capability; ability to deliver for short time intervals electrical energy at significantly higher power than batteries [2]. Batteries are usually indicated for long time supplies (energy) without requisites of instantaneous high consumption (power).…”

Section: Introductionmentioning

confidence: 99%

A Piezoelectric Device for Measurement and Power Harvesting Applications

Alves

Pereira

Fonseca

2015

IFIP Advances in Information and Communication Technology

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Abstract.With the fast growth of wireless communications between nodes/sensor units, devices installed in remote places require power energy supply solutions to assure their functionally and data communication capabilities. For these applications energy harvesting takes place as a good solution, to increase the availability of energy, in opposition to the conventional systems of energy supply. Regenerative energy sources like thermoelectric, magnetic, piezoelectric, and/or renewable sources such as photovoltaic, wind, among others, allowed the development of different powering solutions for sensor units. The purpose of this work is to characterize a piezoelectric device to measure and capture mechanical vibrations from equipments, structures and piping vibrations, as well as from other sources. The study is carried out taking into account the power supply capabilities of piezoelectric devices as a function of the amplitude and frequency of the vibration stimulus, as well as, the electrical characteristics of the load circuit.

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“…The use of supercapacitors has the following advantages: life cycle, with at least two order of magnitude higher than the corresponding one of lead acid batteries; long operation time in a temperature range of -40ºC to +60ºC; higher power capability; able to deliver for short time electrical energy at significantly higher power than batteries [3].…”

Section: Introductionmentioning

confidence: 99%

Characterization of solar panels for powering sensor applications

Alves¹,

Pereira²,

Catalão³

2011

REPQJ

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Abstract. Devices installed in remote places require continuously energy supply for their functionality or communication requirements. For these applications, conventional energy supply is very expensive, or unreliable, and batteries dependence is not a good solution for long-term installations. Energy harvesting can be a good solution, to increase the availability of energy. Regenerative energy sources like thermoelectric, magnetic, piezoelectric, and/or renewable sources such as photovoltaic, wind, among others, allowed the development of different powering solutions for sensor units. The purpose of this work is to characterize three photovoltaic solar panels for different power consumption sensor applications. The study is carried out taking into account the intensity of light and angle of incidence over the photovoltaic panels versus voltage generated. The energy is stored in an association of supercapacitors. This association together with the solar panel itself forms the two possible sources to supply the sensor application.

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On the performance of commercial supercapacitors as storage devices for renewable electrical energy sources

Cited by 9 publications

References 6 publications

A Three-Phase Microgenerator Based Solution for Power Harvesting Applications

A Three-Phase Microgenerator Based Solution for Power Harvesting Applications

A Piezoelectric Device for Measurement and Power Harvesting Applications

Characterization of solar panels for powering sensor applications

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