Experimental Analysis and Monitoring of Photovoltaic Panel Parameters

Abstract

In this article, we establish a technique based on the internet of things to simultaneously monitor the main values that characterize a photovoltaic solar panel. This technique allows to discover the problems and the monstrosities during the operation. This study also allows to collect the parameters and quantities measured for analysis. This method is based on exploiting the advantages of IoT technology. For this it will be a good choice to use and exploit the Esp32 microcontroller, because the two WIFI and Bluetooth modules are integrated. The design process began by creating a system to measure the intensity of the electric current delivered by the photovoltaic panel. A current sensor was implemented for this purpose. To prevent damage to the microcontroller, a voltage divider was proposed to decrease the voltage at the pin level of the Esp32 for measurement. Next, the power and energy values were calculated to estimate the production capacity. In the final stage, a lowpower Bluetooth link was created to transmit the four quantities to a smartphone or other compatible device. Real-time values were presented as graphs on the free ThingSpeak platform and displayed on both, an LCD screen and the serial monitor of the Esp32 microcontroller. The system was tested without any problems or errors.

Monitoring of submersible pumps using ESP32 microcontroller and photovoltaic panels

“…To start the webserver, we used the function server.begin () and when the client requests a web page by entering the IP address of the ESP32, the data to be sent is managed by the subroutine defined in server.on ("/", handleRoot), In the main loop, we handled the client's request with server.handleClient (), this subroutine is called when we validate an internet protocol (IP) address in a web browser to send data from ESP32 to the web browser [26], [27].…”

A Novel Design of a Low-Cost SCADA System for Monitoring Standalone Photovoltaic Systems

“…Table 1 presents the comparison between related work. For HMI designs, authors were using the customized web server [5,8], the third-party website [6] or software [8,10] and the LCD [5,6,10] to display the monitored parameters. A customized web server was built to display monitored electrical parameters from a PV panel rated at 15 W and environmental parameters [5].…”

“…However, no data trend could be observed in this work. In [10], the monitored parameters were displayed on an Andriod app, ThingSpeak platform, and an LCD. Each Bluetooth message comprised of values of parameters and fixed prompt symbols, such as "I = ; V = ".…”

“…For data storage solutions, the SD card was massively adopted by the previous works [5,6,8,9]. ThingSpeak is another popular choice for remote data storage [7,10]. Nevertheless, data stored in the SD card are difficult to retrieve, especially when the standalone PV system locates in remote areas.…”

Monitoring and enhancing the performance of PV systems using IoT and artificial intelligence algorithms

“…Enriching the industrial revolution without harming the environment, especially with the increasing climate changes, requires increased reliance on clean sources of electrical energy. PV systems are one of the sustainable and green energy sources, the demand for which is increasing day by day [1][2][3]. PV systems face many challenges starting from the materials of manufacturing the cells themselves passing by the rapid monitoring of the environmental conditions surrounding the installed PV systems, such as solar irradiance drop, temperature, and humidity reaching to the losses in the output power.…”