This project presents the design and implementation of a Low Voltage Single-Phase Grid-Forming Inverter using LabVIEW and ESP32 for real-time monitoring and control of electrical parameters. The system is powered by a 12V, 7Ah battery which supplies DC power to the inverter circuit. The inverter converts the low-voltage DC input into single-phase AC output suitable for operating electrical loads. An ESP32 microcontroller is used as the main control unit for data acquisition and communication with the computer through a USB cable. The system incorporates voltage and current sensors to continuously measure the electrical parameters of the inverter output. These measured values are transmitted to the LabVIEW graphical user interface (GUI) where real-time voltage, current, and power (in watts) are displayed and monitored. A relay module is used for switching and controlling the connected loads, while an LCD display provides local parameter indication on the hardware setup itself. In this project, two different loads are connected and controlled to analyze the inverter performance under varying operating conditions. The proposed system provides efficient low-voltage power conversion, real-time parameter visualization, and improved monitoring accuracy. The integration of LabVIEW with ESP32 enables user-friendly operation, fast response, and reliable communication between hardware and software. This project can be effectively used in renewable energy systems, smart grid applications, laboratory experiments, and low-power backup systems.    

The main Objectives of this project are:  

1. To design a low-voltage single-phase grid-forming inverter using a 12V battery source for AC power generation.
2. To monitor electrical parameters such as voltage, current, and power in watts using voltage and current sensors integrated with ESP32.
3. To develop a LabVIEW-based graphical user interface (GUI) for real-time visualization and monitoring of inverter performance.
4. To control and switch multiple electrical loads using relay modules and analyze inverter behavior under different load conditions.
5. To establish communication between ESP32 and LabVIEW through USB interface for accurate data transmission and efficient system operation.

  The major building blocks of this project:  

• ESP32 controller.
• 12V 7AH Battery.
• Inverter.
• Relay.
• Voltage and Current sensors.
• LCD display.
• USB cable.

  Software’s used in the project:

• Software: NI LabVIEW
• Compiler: LabVIEW Real-Time (RT) Compiler.

   

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