TITLE:
Design of Grid-Connected Photovoltaic System
AUTHORS:
Naseer Khan, Muhammad Aamir, Faisal Mehmood, Muhammad Aslam, Muhammad Arif
KEYWORDS:
Photovoltaic Systems (PV), High Voltage Gain, DC-DC Converter, PWM, Inverter, Synchronization
JOURNAL NAME:
Journal of Power and Energy Engineering,
Vol.5 No.8,
July
27,
2017
ABSTRACT: This paper presents a grid connected photovoltaic system (PV) with a proposed high voltage conversion ratio DC-DC converter which steps up the variable low input voltages of photovoltaic module to the required DC link voltage. This voltage is applied to an H-bridge inverter which converts DC voltage into AC voltage and a low pass filter is used to filter the output. By adjusting the duty ratio of switches in DC-DC converter, the magnitude of inverter’s output voltage is controlled. The frequency and phase synchronization are ensured by a feedback signal taken from the grid. In this way, inverter is synchronized and connected with the grid to meet the energy demand. The PV system has been designed and simulated.