Reliability of rechargeable batteries in a photovoltaic power supply system

Urbina, Angel; Paez, Thomas L.; O'Gorman, Christian Charles; Barney, P.; Jungst, Rudolph G.; Ingersoll, David

doi:10.1016/s0378-7753(99)00062-2

Cited by 14 publications

(5 citation statements)

References 8 publications

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“…Sandia National Laboratories has done a great deal of work in performance based modeling of lead-acid, Li-Ion and NiMH batteries using Equivalent Circuit, Artificial Neural Network (ANN) and fuzzy logic techniques. Those models coupled with PV systems have looked exclusively at lead-acid batteries [8], [9]. Urbina et al [10] also looked at how inductive modeling of Li-Ion can enhance a phenomenological model.…”

Section: Electrical Energy Storage Modelsmentioning

confidence: 99%

Technology development needs for integrated grid-connected PV systems and electric energy storage

Hanley

Peek

Boyes

et al. 2009

2009 34th IEEE Photovoltaic Specialists Conference (PVSC)

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Researchers at Sandia National Laboratories and the U.S. Department of Energy's Solar Energy Technologies Program assessed status and needs related to optimizing the integration of electrical energy storage and gridconnected photovoltaic (PV) systems. At high levels of PV penetration on our electric grid, reliable and economical distributed energy storage will eliminate the need for backup utility generation capacity to offset the intermittent nature of PV generation. This paper summarizes the status of various storage technologies in the context of PV system integration, addressing applications, benefits, costs, and technology limitations. It then discusses further research and development needs, with an emphasis on new models, systems analysis tools, and even business models for high penetration of PV-storage systems on a national scale.

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Section: Electrical Energy Storage Modelsmentioning

confidence: 99%

Technology development needs for integrated grid-connected PV systems and electric energy storage

Hanley

Peek

Boyes

et al. 2009

2009 34th IEEE Photovoltaic Specialists Conference (PVSC)

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“…The following sections recapitulate some of the fundamental assumptions and ideas of Urbina et al, (1998). The theory and algorithms that augment previous dwelopments are presented in full.…”

Section: I31sclai M Ermentioning

confidence: 99%

“…It was argued in Urbina et al, (1998) that the random variables representing direct normal solar radiation and diffuse horizontal radiation are dependent, and that their joint probability distribution is non-Gaussian. Substantial evidence confirming these arguments was presented.…”

Section: Synthetic Generation Of Solar Data Using a Markov Processmentioning

confidence: 99%

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99/03808 Reliability of rechargeable batteries in a photovoltaic power supply system

1999

Fuel and Energy Abstracts

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We investigate the reliability of a rechargeable battery acting as the energy storage component in a photovoltaic power supply system. A model system was constructed for this that includes the solar resource, the photovoltaic power supply system, the rechargeable battery and a load. The solar resource and the system load are modeled as siochastic processes. The photovoltaic system and the rechargeable battery are modeled deterministically, and an artificial neural network is incorporated into the model of the rechargeable battery to simulate dariage that occurs during deep discharge cycles. The equations governing system behavior are solved simultaneously in the Monte Carlo framework and a frrst passage problem is solved to assess system reli,ibility.

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“…The problem becomes more complicated when the sole energy source of the system is a photovoltaic panel [6]. In this case, the energy supply is non-constant and non-predictable.…”

Section: Introductionmentioning

confidence: 99%

Monitoring and Charge-Control of Lead-Acid Batteries in Photovoltaic Applications

Ortega-Sánchez¹,

Orozco-Valera²,

Pacheco-Arteaga³

et al. 2004

Solar Energy

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Accurate charge-control and state-of-charge monitoring of lead-acid batteries is an ever-increasing necessity in an industry that demands low-maintenance costs and highly available systems. If the batteries are charged by photovoltaic panels and are installed in remote sites (e.g. Oil sea-platforms, highway emergency bays, autonomous communications systems) and exposed to aggressive environmental conditions (e.g. Extreme temperature, high humidity), the problem of extending the batteries’ useful life becomes a challenge. Most charging algorithms do not perform well when photovoltaic panels are the sole source of energy because energy availability is not guaranteed. A charge algorithm that maximizes the use of energy generated by the panel during daylight hours is needed. This paper presents a microcontroller-based charge-controller suitable for photovoltaic applications. The controller performs temperature compensation on the charge algorithm. It also stores those parameters that provide an indication on batteries’ state-of-charge and state-of-health: Panel voltage, battery’s voltage and current, current demanded by a load and room temperature. The controller has serial communication capabilities that make possible the connection to a personal computer or central station. By using a local industrial network or radio links, multiple controllers can be monitored by a central station running a battery management program. The information collected by all the controllers in the system is analyzed to determine the state-of-charge of individual batteries and, if required, command the appropriate controller to perform special procedures like, for example, thorough diagnostics or equalization. Preliminary field-test results of a controller installed in a high-way emergency bay are presented in this paper. It is shown that protection against deep discharges is achieved, which contributes to extend the battery useful life.

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Reliability of rechargeable batteries in a photovoltaic power supply system

Cited by 14 publications

References 8 publications

Technology development needs for integrated grid-connected PV systems and electric energy storage

Technology development needs for integrated grid-connected PV systems and electric energy storage

99/03808 Reliability of rechargeable batteries in a photovoltaic power supply system

Monitoring and Charge-Control of Lead-Acid Batteries in Photovoltaic Applications

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