Author : Jijo Balakrishnan 1
Date of Publication :7th February 2016
Abstract: In the present scenario a grid connected PV system plays an important role in the smart grid power control and quality system. A grid connected photovoltaic generation system mainly depends upon the efficiency of DC-AC conversion system. This paper presents a concept of an inverter for grid connected photovoltaic arrays which can synchronies a sinusoidal voltage output with a grid. The microinverter includes SPWM H-bridge inverter and DC-DC converter with controllers. Because of the losses and voltage stress due to active switches and diodes of DC-DC converter will reduce the output voltage gain. A quadrupler is introducing for high output voltage gain for the grid connected PV microinverter. Finally in this paper, comparison between high step-up DC-DC converter and quadrupler with MATLAB simulation results.
Reference :
-
- Simulation and analysis of grid connected photovoltaic system with MPPT “Manish Kumar, student member electric department, NIT, Kureshthra India IEEE Transaction VOL-3 2009”
- Ultra-Large Gain Step Up Switched Capacitor DC-DC Converter with Coupled Inductor for Alternative Source of Energy “Tsong –Juu Liang senior Member IEEE Transaction vol-59 n0.4 APRIL 2012.
- A Novel Transformer-less Adaptable Voltage Quadrupler DC Converter with Low Switch Voltage Stress “Ching Tsai Pan Member IEEE transaction VOL-29 NO.9 SEPT 2014”
- Design and Implementation of Grid Connection Photovoltaic Micro Inverter “Wei-Fu Lai Shih Ming Chen (GEERC) dept EEE IEEE transcation2012”.