Design of Grid-Connected Photovoltaic System

• 作者: Faisal Mehmood Muhammad Aamir Muhammad Arif Muhammad Aslam Naseer Khan
• 来源期刊: 电力能源(英文)
• 学科: 医学
• 关键词: PHOTOVOLTAIC Systems (PV) High Voltage GAIN DC-DC CONVERTER PWM INVERTER SYNCHRONIZATION
• 年，卷（期）: dlnyyw_2017,（8）
• 页码范围: 1-12
• 页数: 12页
• 分类号: R73

摘要

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.