Design of an Ultra-Low Powered Data-Logger for Stand-Alone PV Energy Systems

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  •   Asif Ur Rehman

  •   M. Tariq Iqbal

Abstract

This paper presents an open-source, ultra-low powered data-logger for off-grid photovoltaic (PV) energy systems. Deep-sleep mode of ESP32-S2 microcontroller is used along with voltage, current, and light sensors for logging the data of PV energy system to an external micro SD card. A toggle switch is used to switch the operational modes of data-logger between deep-sleep and web-server modes. Real-time PV data can be monitored in a local web-portal programmed in the microcontroller. The same web-portal is also used to check and download the historical data of a PV energy system. The energy consumption of the designed system is 7.33mWh during deep-sleep mode and 425mWh during the web-server mode. The total cost of the designed data-logger is C$ 30.


Keywords: PV data-logger, open-source data-logger, ultra-low powered data-logger, Off-grid PV system, Renewable Energy, solar energy, ESP32-S2, PV monitoring System

References

T. Akhtar, A. U. Rehman, M. Jamil, and S. O. Gilani, “Impact of an Energy Monitoring System on the Energy Efficiency of an Automobile Factory: A Case Study,” Energies, vol. 13, no. 10, p. 2577, May 2020.

S. K. Mulaudzi and S. Bull, “An assessment of the potential of solar photovoltaic (PV) application in South Africa,” in 2016 7th International Renewable Energy Congress (IREC), 2016, pp. 1–6.

Treter, M. E., Pietta, L. P., Xavier, P., & Michels, L. (2015). Data acquisition and cloud storage system applied photovoltaic systems. 2015 IEEE 13th Brazilian Power Electronics Conference and 1st Southern Power Electronics Conference (COBEP/SPEC), 1–6. https://doi.org/10.1109/COBEP.2015.7420136.

E. Mulyana, A. E. Setiawan, S. Sumaryo, and A. Munir, “Data Monitoring System of Solar Module with Data Logger for Public Street Lighting Application,” in 2019 26th International Conference on Telecommunications (ICT), 2019, pp. 280–283.

N. V Nehovski, N. N. Tomchev, T. S. Djamiykov, and K. K. Asparuhova, “Datalogger for Small Solar Systems,” in 2018 IX National Conference with International Participation (ELECTRONICA), 2018, pp. 1–3.

V. Gupta, P. Raj, and A. Yadav, “Design and cost minimization of PV analyzer based on arduino UNO,” in 2017 IEEE International Conference on Power, Control, Signals and Instrumentation Engineering (ICPCSI), 2017, pp. 1337–1342.

P. Borza and E. Kaplani, “An embedded microcontroller unit for PV module monitoring and fault detection,” in 2019 8th International Conference on Renewable Energy Research and Applications (ICRERA), 2019, pp. 557–562.

I. Allafi and T. Iqbal, “Design and implementation of a low cost web server using ESP32 for real-time photovoltaic system monitoring,” in 2017 IEEE Electrical Power and Energy Conference (EPEC), 2017, pp. 1–5.

Lilygo, “ESP32-S2-WOOR,” Product details. 2020. [Online]. Available: http://www.lilygo.cn/prod_view.aspx?TypeId=50033&Id=1320&FId=t3:50033:3. [Accessed: 15-Oct-2020].

espressif, “DataSheet,” ESP32-S2, 2020. [Online]. Available: https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf. [Accessed: 15-Oct-2020].

“Light Dependent Resistor,” DataSheet. [Online]. Available: https://components101.com/sites/default/files/component_datasheet/LDR%20Datasheet.pdf.

"Eco Eye SmartPV - Eco-eye electricity monitors", Eco-eye.com, 2020. [Online]. Available: https://www.eco-eye.com/product-monitor-solar-smartpv. [Accessed: 26- Sep- 2020].

"geo Solo II PV - with energynote online services - geo | consumers", geo | consumers,2020. [Online]. Available: https://www.geotogether.com/consumer/product/geo-solo-ii-pv-solar-panel-microgeneration/. [Accessed: 23- Sep- 2020].

"Solar PV Monitoring. Intuition PV. The OWL", Theowl.com, 2020. [Online]. Available: https://www.theowl.com/index.php/energy-monitors/solar-pv-monitoring/intuition-pv/. [Accessed: 23- Sep- 2020].

"SolarFox Solar Monitoring system. SOLEDOS GmbH", solar-fox.com, 2020. [Online]. Available: https://www.solar-fox.com/en/solarfox-sf-100-series.html. [Accessed: 23- Sep- 2020].

"SolarEdge Monitoring system. SolarEdge", solaredge.com, 2020. [Online]. Available: https://www.solaredge.com/products/pv-monitoring#/ [Accessed: 24- Sep- 2020].

"Tigo Energy Monitoring system. Tigo Energy", tigoenergy.com, 2020. [Online]. Available: https://support.tigoenergy.com/hc/en-us/articles/202342726/ [Accessed: 24- Sep- 2020].

"Enlighten Energy Monitoring system. Enphase Energy system", enphase.com, 2020. [Online]. Available: https://enphase.com/en-us/products-and-services/enlighten-and-apps/ [Accessed: 24- Sep- 2020].

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How to Cite
[1]
Rehman, A.U. and Iqbal, M.T. 2020. Design of an Ultra-Low Powered Data-Logger for Stand-Alone PV Energy Systems. European Journal of Electrical Engineering and Computer Science. 4, 6 (Dec. 2020). DOI:https://doi.org/10.24018/ejece.2020.4.6.261.

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