REAL-TIME REMOTE POWER MONITORING OF SINGLEPHASE SOLAR PV INVERTER

FAM, JYE YUN (2019) REAL-TIME REMOTE POWER MONITORING OF SINGLEPHASE SOLAR PV INVERTER. [Final Year Project Report] (Unpublished)

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Abstract

This thesis focuses on the real-time remote monitoring of single-phase solar PV inverter. The PV module converts sunlight into electricity by producing a direct current (DC) electrical power. The solar charge controller regulates the voltage and current from PV module and store it into the battery. The inverter converts the DC electricity into AC for normal home appliances. The PV system produces DC power which fluctuates with the intensity of sunlight which may not stable. It is necessary to monitor the power produced by the solar PV in real time in order to create an efficient performance for the solar power system. The aim of this project is to set up a data acquisition system to monitor the power output of solar PV system. The data acquisition system includes DAQ device, voltage and current sensors. To monitor the solar PV system, LabVIEW software had been used to get the real-time voltage and current signals from the solar PV system. The voltage and current sensors are set up to the PV input, battery and load output. The LabVIEW is programmed to show the waveform and the value of voltage, current, power and THD for the load. So, it is able to monitor the power generated by the PV module, the power absorbed or supply by the battery and the power consumption of the load. Also, the LabVIEW is programmed to control the switch inside the solar PV system by using the relays. Lastly, it is able to access the LabVIEW by using another computer through web-based interface. So, the solar PV system can be monitored or controlled remotely from long distance as long as there is Internet services. Therefore, it is not necessary to be physically at the solar PV system to monitor the power.

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