Solar photovoltaic module remote access module switch and real-time temperature monitoring
AssigneeSigmagen, Inc.
InventorMehrdad M. Moslehi
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Abstract
A method for calculating a real-time effective temperature of a solar photovoltaic module at any operating time during power generation period between a daily wake-up time and sleep time of said solar photovoltaic module is provided. The method is based on, in part, measuring the solar photovoltaic module open-circuit voltage at said daily wake-up time and measuring the solar photovoltaic module open-circuit voltage at said operating time.
Claims4
A method for calculating a real-time effective temperature of a solar photovoltaic module at any operating time during power generation period between a daily wake-up time and sleep time of said solar photovoltaic module, based on a formula as follows:
- a. Measuring a solar photovoltaic module open-circuit voltage at said daily wake-up time
- b. Measuring the solar photovoltaic module open-circuit voltage at said operating time
- c. Measuring an ambient temperature at said daily wake-up time by measuring a temperature of an electronic circuit performing real-time electrical measurements at said daily wake-up time, said electronic circuit co-located with said solar photovoltaic module during power generation operation
- d. Subtracting said solar photovoltaic module open-circuit voltage at said daily wake-up time from said solar photovoltaic module open-circuit voltage at said operating time
- e. Dividing the resulting voltage value from the prior step by a pre-specified temperature coefficient constant of said solar photovoltaic module, and
- f. Adding the resulting temperature value from the prior step to said ambient temperature at said daily wake-up time to provide said real-time effective temperature of said solar photovoltaic module at said operating time during said power generation period.
Dependencies are inferred from the claim text.