Real-Time Implementation of Energy Management for Photovoltaic/Battery/Diesel Hybrid System Based on LabVIEW

This paper presented a complete design and simulation of a PV battery diesel hybrid system for supplying agriculture farming demands in remote areas. A power management subsystem for monitoring and controlling a PV battery diesel hybrid system (PVBDHS) was proposed. A simple monitoring system has been designed using LabVIEW Interface for the Arduino. LabVIEW program Interface for the Arduino (LIFA) was used to monitor PVBDHS parameters; DC bus voltage, PV current, battery current and load current power in real-time to overcome the data acquisition. The Arduino Uno microcontroller board was used as a data acquisition medium to collect data from the PVBDHS. The embedded control board based on the Arduino UNO board used a voltage sensor and current sensor at a low cost and the data are transmitted from the hardware to the LabVIEW program by using written interfacing software. Finally, a pilot plant of PVBDHS was implemented and tested. Different cases of system operation are tested. The results depicted that, as load demand changed, the energy management subsystem was able to change the batteries status according to SOC value and diesel status change sequentially. All modes of operation of proposed system gave the estimated response. Also, the results showed the ability of the energy management subsystem to monitor and control PVBDHS system operation with real-time conditions. The results were reliable and stable and prove the accurate function of system operation.