Implementation of a PV-WiFi Module for Wireless String Monitoring of Photovoltaic Based on WiFi Communication 


Vol. 45,  No. 11, pp. 1940-1954, Nov.  2020
10.7840/kics.2020.45.11.1940


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  Abstract

This paper describes implementation method of a PV-WiFi module for wireless photovoltaic (PV) string monitoring based on WiFi communication. The string monitoring method presented in this paper can be conveniently applied to the combiner box without the need for disassembly, modification, and reassembly of devices or wires in the combiner box by using clamp-type current sensor. The PV-WiFi module is composed of the ATmega328 MCU processing part and the ESP8266 WiFi processing part. The ATmega328 MCU processing part calculates the actual current values in the strings with the analog signals from the clamp-type current senstor while suppressing noises and transmits the calculated values to the ESP8266 WiFi processing part via UART communication. The ESP8266 WiFi processing part communicates with the PV string data collection module through WiFi to receive a data request packet and transfer it to the ATmega328 MCU processing part. And, the ESP8266 part transmits the string generation data transferred from the ATmega328 processing part to the PV string data collection module. In this paper, the results of the PV string wireless monitoring test based on the PV-WiFi module applied to the actual PV combiner box are also presented.

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  Cite this article

[IEEE Style]

J. Jeong and I. Lee, "Implementation of a PV-WiFi Module for Wireless String Monitoring of Photovoltaic Based on WiFi Communication," The Journal of Korean Institute of Communications and Information Sciences, vol. 45, no. 11, pp. 1940-1954, 2020. DOI: 10.7840/kics.2020.45.11.1940.

[ACM Style]

Jin-Doo Jeong and Il-Woo Lee. 2020. Implementation of a PV-WiFi Module for Wireless String Monitoring of Photovoltaic Based on WiFi Communication. The Journal of Korean Institute of Communications and Information Sciences, 45, 11, (2020), 1940-1954. DOI: 10.7840/kics.2020.45.11.1940.

[KICS Style]

Jin-Doo Jeong and Il-Woo Lee, "Implementation of a PV-WiFi Module for Wireless String Monitoring of Photovoltaic Based on WiFi Communication," The Journal of Korean Institute of Communications and Information Sciences, vol. 45, no. 11, pp. 1940-1954, 11. 2020. (https://doi.org/10.7840/kics.2020.45.11.1940)

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pISSN : 1226 - 4717
eISSN : 2287 - 3880