Data acquisition and cloud storage system applied photovoltaic systems

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.

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“…(corresponding e-mail: aurehman mun.ca) domestic applications [3]. Researchers have been working on photovoltaic data loggers for a long time.…”

Section: Introduction and Literature Reviewmentioning

confidence: 99%

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

Rehman

Iqbal

2020

EJECE

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“…A previous study also shows a data acquisition and visualization system, with storage in the cloud, and it has been applied on a photovoltaic system. In addition, this design was based on embedded computer, and it connected with PV inverters by using RS485 standard, and microcontroller is to read climate sensors but sensors have used web system to show data [9].…”

Section: Introductionmentioning

confidence: 99%

Low-Cost SCADA System Using Arduino and Reliance SCADA for a Stand-Alone Photovoltaic System

Allafi

Iqbal

2018

Journal of Solar Energy

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SCADA (supervisory control and data acquisition) systems are currently employed in many applications, such as home automation, greenhouse automation, and hybrid power systems. Commercial SCADA systems are costly to set up and maintain; therefore those are not used for small renewable energy systems. This paper demonstrates applying Reliance SCADA and Arduino Uno on a small photovoltaic (PV) power system to monitor the PV current, voltage, and battery, as well as efficiency. The designed system uses low-cost sensors, an Arduino Uno microcontroller, and free Reliance SCADA software. The Arduino Uno microcontroller collects data from sensors and communicates with a computer through a USB cable. Uno has been programmed to transmit data to Reliance SCADA on PC. In addition, Modbus library has been uploaded on Arduino to allow communication between the Arduino and our SCADA system by using MODBUS RTU protocol. The results of the experiments demonstrate that SCADA works in real time and can be effectively used in monitoring a solar energy system.

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