Design of Grid-Connected Photovoltaic System  

作　　者：Naseer Khan Muhammad Aamir Faisal Mehmood Muhammad Aslam Muhammad Arif 

机构地区：[1]Department of Electrical Engineering, UET, Peshawar, Pakistan [2]Department of Electrical Engineering, University of Malaya, Malaya, Malaysia [3]Department of Electrical Engineering, COMSATS, Abbottabad, Pakistan

出　　处：《Journal of Power and Energy Engineering》2017年第8期1-12,共12页电力能源（英文）

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.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.

关 键 词：PHOTOVOLTAIC Systems (PV) High Voltage GAIN DC-DC CONVERTER PWM INVERTER SYNCHRONIZATION 

分 类 号：R73[医药卫生—肿瘤]