Photovoltaic module operation temperature on-line monitoring system

By designing a photovoltaic module operating temperature online monitoring system integrating string inverter, temperature testing device, environmental interference removal module, fault warning module and monitoring system, the problem of insufficient accuracy, economy and safety of photovoltaic module temperature monitoring in the existing technology is solved, real-time and accurate monitoring and fault warning of photovoltaic module operating temperature is achieved, and the operation efficiency and safety of photovoltaic power stations are improved.

CN119652256APending Publication Date: 2025-03-18NAT ELECTRIC POWER INVESTMENT GRP YELLOW RIVER UPSTREAM HYDROPOWER DEV CO LTD +1
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Patent Information

Application Number
CN202411632097.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-15
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

The existing photovoltaic module temperature monitoring systems have shortcomings in accuracy, economy and safety, with large errors, high costs and difficulty in real-time warning of faults.

Method used

A photovoltaic module operating temperature online monitoring system is designed, including a string inverter, temperature testing device, environmental interference removal module, fault warning module and monitoring system. Temperature data is uploaded through the inverter communication interface, and the temperature compensation model and interference filter unit are used to improve monitoring accuracy and reliability, and real-time early warning is achieved through the fault warning module.

Benefits of technology

Real-time and accurate monitoring of the operating temperature of photovoltaic modules is realized, reducing the impact of environmental factors on temperature measurement, reducing monitoring costs, and improving the operating efficiency and safety of photovoltaic power plants.

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Abstract

The invention relates to the technical field of photovoltaic module monitoring, and discloses a photovoltaic module operation temperature on-line monitoring system, which comprises a string type inverter, a temperature testing device, an environmental interference elimination module, a fault early warning module and a monitoring system, the string type inverter is used for converting direct current generated by the photovoltaic module into alternating current; the temperature testing device leads out a temperature testing line from the string type inverter and is installed on the back face of the photovoltaic module nearby so as to collect temperature data of the photovoltaic module. The temperature data of the plurality of assemblies collected by the temperature test module and other operation data of the inverter are uploaded to the monitoring system through the inverter communication interface. According to the invention, the module temperature testing device is additionally arranged on a conventional inverter, and the module temperature testing device and other operation data of the inverter are uploaded to the monitoring system together, so that the number of testing equipment and data acquisition equipment is reduced, the cost is reduced, the real-time monitoring of the operation temperature of the photovoltaic module is realized, and the operation is convenient.
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