Photovoltaic module, temperature monitoring method and system for photovoltaic module
A photovoltaic module and monitoring system technology, which is applied to the monitoring of photovoltaic systems, thermometers, photovoltaic modules, etc., and can solve the problems of inability to accurately monitor the temperature of the battery layer of photovoltaic modules
Inactive Publication Date: 2020-07-14
HOHAI UNIV CHANGZHOU
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Problems solved by technology
[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a photovoltaic module and its temperature monitoring method and system to solve the technical problem that the temperature of the cell layer of the photovoltaic module cannot be accurately monitored in the prior art
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[0030] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0031] Aiming at the technical problem that the temperature of the battery layer of the photovoltaic module cannot be accurately monitored in the prior art, the present invention proposes the following technical ideas: first, design a photovoltaic module that can directly monitor and obtain the temperature of the battery layer; then, collect various data related to the temperature of the battery layer Various factors, such as the temperature of the underlying surface, meteorological parameters, etc.; then, fitting the functional relationship between the temperature of the battery layer and various factors; finally, based on the functional relationship, the temperature of the battery layer of an o...
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The invention discloses a photovoltaic module and a temperature monitoring method and system for the photovoltaic module, belongs to the technical field of photovoltaic power generation, and aims to solve the technical problem that the temperature of the battery layer of a photovoltaic module cannot be accurately monitored in the prior art. The photovoltaic module comprises a temperature sensing unit arranged in a battery layer; and the temperature sensing unit comprises a thermocouple. The method comprises the following steps that: the battery layer temperature, underlying surface temperatureand meteorological factors related to the battery layer temperature of a first photovoltaic module are acquired, wherein the meteorological factors comprise at least any one of total radiation, scattered radiation, environment temperature, wind speed, wind direction and relative humidity; a relation function among the battery layer temperature, the meteorological factors and the underlying surface temperature is established by using multivariate linear regression analysis; and the underlying surface temperature of a second photovoltaic module and meteorological factors related to the batterylayer temperature are obtained, and are substituted into the relation function, so that the battery layer temperature of the second photovoltaic module can be solved.
Description
technical field [0001] The invention relates to a photovoltaic module and its temperature monitoring method and system, belonging to the technical field of photovoltaic power generation. Background technique [0002] The production cost, power generation efficiency, service life and reliability of photovoltaic modules have become hot research issues in recent years, and the temperature of photovoltaic modules is an important factor. The temperature of photovoltaic modules will have a significant impact on the power generation. As the temperature of the modules increases, the short-circuit current increases slightly, while the open-circuit voltage decreases significantly, and the maximum power point and fill factor also decrease. At the same time, due to changes in the environment, the thermal stress generated by the temperature directly affects the performance and service life of the power station system. Therefore, it is of great significance to pay close attention to the ...
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IPC IPC(8): H02S50/10H02S40/30H02S50/00G01K13/00G01K7/02G01W1/04G08C17/02
CPCH02S50/10H02S40/30H02S50/00G01K13/00G01K7/023G01W1/04G08C17/02Y02E10/50
Inventor 伍敏燕张臻邵玺唐启阳刘富光
Owner HOHAI UNIV CHANGZHOU