Implementation of supercapacitors in uninterruptible power supplies

Stepanov, Andrew; Galkin, Ilya; Bisenieks, Lauris

doi:10.1109/epe.2007.4417559

Cited by 16 publications

(8 citation statements)

References 1 publication

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“…It was found that the discharging time of supercapacitors with the conventional battery was the longest period of 610 s with at 10.09 V. The UPS used 285 s to discharge voltage at the end of 10.08 V [22,[28][29][30][31]. The fastest period for the discharging time was 579 s with 10.04 V. The results were shown in Figs.…”

Section: Analysis Of Using the Battery As A Backup Power Supplymentioning

confidence: 94%

Combination of Supercapacitor and AC Power Source in Storing and Supplying Energy for Computer Backup Power

Phoosomma

Kasayapanand

Mungkung

2019

J. Electr. Eng. Technol.

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This paper presents the charge and discharge combination of the supercapacitors and the AC power source in storing and supplying energy for computer backup power. According to the behavior of storing and supplying energy, the SC can be charged with high currents. Whereas the battery cannot. The supercapacitors efficiency in storing and supplying power at high voltage and low current is 95.20%. An analysis also revealed that the charging time of the supercapacitors is less than 199 s. The combination of the supercapacitors and the battery required 604 s for charging time. The battery alone is the longest at 1080 s. Moreover, the study showed that the discharging time of the supercapacitors and the battery combination was more than 610 s. The discharging time of the battery and the supercapacitors were 285 and 579 s, respectively. Therefore, the combination of the supercapacitors and an AC power source can replace battery in the design of computer backup.

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Section: Analysis Of Using the Battery As A Backup Power Supplymentioning

confidence: 94%

Combination of Supercapacitor and AC Power Source in Storing and Supplying Energy for Computer Backup Power

Phoosomma

Kasayapanand

Mungkung

2019

J. Electr. Eng. Technol.

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“…It is composed of a step-up converter for a FC stack, and two bidirectional converters for battery and supercapacitor modules. It is the most sufficient configuration when comparing mass, volume and cost, as detailed in [15], [16].…”

Section: A Structure Of Hybrid Power Sourcementioning

confidence: 99%

Control of fuel cell/battery/supercapacitor hybrid source for vehicle applications

Thounthong

Sethakul

Raël³

et al. 2009

2009 IEEE International Conference on Industrial Technology

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This paper presents a control algorithm for utilizing a polymer electrolyte membrane fuel cell (PEMFC) as a main power source and storage devices (batteries and supercapacitors) for dc distributed system, particularly for future FC vehicle applications. This strategy is based on a standard dc bus voltage regulation, which takes into account the slowest dynamics of a fuel cell (FC) and the fastest dynamics of a supercapacitor bank. The principle is based on frequency approach that the FC dynamics are limited to avoid fuel starvation problems and the battery dynamics are also limited to reduce its stress. Its originality lies in using only the supercapacitor for supplying the energy required to achieve the dc bus voltage regulation, the battery for supplying the energy to keep the supercapacitor charged, and the FC for supplying the energy to keep the battery charged. To validate the proposed principle, a hardware system is realized by analog circuits and numerical calculations by dSPACE. Experimental results with small-scale devices (a PEMFC: 500-W, 50-A; a battery bank: 68-Ah, 24-V; and a supercapacitor bank: 292-F, 30-V) authenticate the excellent control algorithm during motor drive cycle.

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“…It is composed of a FC converter, battery converter, and supercapacitor converters. It is the most efficient configuration when comparing mass, volume and cost, as detailed in [10], [11].…”

Section: A Structure Of Hybrid Power Sourcementioning

confidence: 99%

Performance Evaluation of Fuel Cell/Battery/Supercapacitor Hybrid Power Source for Vehicle Applications

Thounthong

Sethakul

Raël

et al. 2009

2009 IEEE Industry Applications Society Annual Meeting

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This paper proposes a high-power high-energy dc distributed generation system supplied by a polymer electrolyte membrane fuel cell (PEMFC) as a main power source and storage devices: battery and supercapacitor, for future fuel cell vehicle applications. The energy in hybrid system is balanced by the dc bus voltage regulation. The principle is based on frequency approach that the FC dynamics are limited to avoid fuel starvation problems and the battery dynamics are also limited to reduce its stress. As a result, the hybrid power source will increase its lifetime. To authenticate the proposed control algorithm, a hardware system in our laboratory is realized by analog circuits and numerical calculation by dSPACE.Experimental results with small-scale devices (a PEMFC: 500-W, 50-A; a battery bank: 68-Ah, 24-V; and a supercapacitor bank: 292-F, 30-V, 500-A) corroborate the excellent control principle during motor drive cycle. IndexTerms--Converters, current control, energy conversion, energy management, hydrogen, oxygen, polymer electrolyte membrane fuel cell (PEMFC).

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Implementation of supercapacitors in uninterruptible power supplies

Cited by 16 publications

References 1 publication

Combination of Supercapacitor and AC Power Source in Storing and Supplying Energy for Computer Backup Power

Combination of Supercapacitor and AC Power Source in Storing and Supplying Energy for Computer Backup Power

Control of fuel cell/battery/supercapacitor hybrid source for vehicle applications

Performance Evaluation of Fuel Cell/Battery/Supercapacitor Hybrid Power Source for Vehicle Applications

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