Comparison of Time Required to Charge a Battery in a Stand-Alone Photovoltaic System Using Different Charge Controller Types

Comparison of Time Required to Charge a Battery in a Stand-Alone Photovoltaic System Using Different Charge Controller Types

Research output: Contribution to conference › Paper

Abstract

An experiment was conducted at the National Renewable Energy Laboratory (NREL) comparing the time required to charge a fully discharged valve-regulated lead-acid battery in a photovoltaic (PV) system using on/off-shunt and pulse-width-modulated (PWM) charge controllers. In one system configuration, an on/off-shunt charge controller was only able to charge the battery to 61% of its rated capacityafter 16 days. In a subsequent test, a different on/off-shunt controller in a different PV system configuration readily charged its battery to 100% rated capacity in less than 6 days. It charged its battery as quickly as a couple different PWM charge controllers did in identical systems in a side-by-side comparison.

Original language	American English
Number of pages	8
State	Published - 1998
Event	NCPV Program Review Meeting - Denver, Colorado Duration: 8 Sep 1998 → 11 Sep 1998

Conference

Conference	NCPV Program Review Meeting
City	Denver, Colorado
Period	8/09/98 → 11/09/98

NREL Publication Number

NREL/CP-520-25352

Keywords

battery
lead-acid
photovoltaic
pulse-width modulated

Access to Document

https://www.nrel.gov/docs/legosti/old/25352.pdf

Cite this

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title = "Comparison of Time Required to Charge a Battery in a Stand-Alone Photovoltaic System Using Different Charge Controller Types",

abstract = "An experiment was conducted at the National Renewable Energy Laboratory (NREL) comparing the time required to charge a fully discharged valve-regulated lead-acid battery in a photovoltaic (PV) system using on/off-shunt and pulse-width-modulated (PWM) charge controllers. In one system configuration, an on/off-shunt charge controller was only able to charge the battery to 61% of its rated capacityafter 16 days. In a subsequent test, a different on/off-shunt controller in a different PV system configuration readily charged its battery to 100% rated capacity in less than 6 days. It charged its battery as quickly as a couple different PWM charge controllers did in identical systems in a side-by-side comparison.",

keywords = "battery, lead-acid, photovoltaic, pulse-width modulated",

author = "NREL",

year = "1998",

language = "American English",

note = "NCPV Program Review Meeting ; Conference date: 08-09-1998 Through 11-09-1998",

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PY - 1998

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N2 - An experiment was conducted at the National Renewable Energy Laboratory (NREL) comparing the time required to charge a fully discharged valve-regulated lead-acid battery in a photovoltaic (PV) system using on/off-shunt and pulse-width-modulated (PWM) charge controllers. In one system configuration, an on/off-shunt charge controller was only able to charge the battery to 61% of its rated capacityafter 16 days. In a subsequent test, a different on/off-shunt controller in a different PV system configuration readily charged its battery to 100% rated capacity in less than 6 days. It charged its battery as quickly as a couple different PWM charge controllers did in identical systems in a side-by-side comparison.

AB - An experiment was conducted at the National Renewable Energy Laboratory (NREL) comparing the time required to charge a fully discharged valve-regulated lead-acid battery in a photovoltaic (PV) system using on/off-shunt and pulse-width-modulated (PWM) charge controllers. In one system configuration, an on/off-shunt charge controller was only able to charge the battery to 61% of its rated capacityafter 16 days. In a subsequent test, a different on/off-shunt controller in a different PV system configuration readily charged its battery to 100% rated capacity in less than 6 days. It charged its battery as quickly as a couple different PWM charge controllers did in identical systems in a side-by-side comparison.

KW - battery

KW - lead-acid

KW - photovoltaic

KW - pulse-width modulated

M3 - Paper

T2 - NCPV Program Review Meeting

Y2 - 8 September 1998 through 11 September 1998

ER -

Comparison of Time Required to Charge a Battery in a Stand-Alone Photovoltaic System Using Different Charge Controller Types

Abstract

Conference

NREL Publication Number

Keywords

Access to Document

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Cite this