Record Details

Universal single-stage grid-connected inverter

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Universal single-stage grid-connected inverter
 
Creator PRASAD, BS
JAIN, SACHIN
AGARWAL, VIVEK
 
Subject computer simulation
electric network topology
electric power generation
optimization
 
Description A new single-stage grid-connected inverter, suitable for distributed generation applications, is proposed. The inverter is universal in the sense that it can be switched between buck, boost, and buck--boost configurations by appropriately altering the pulse width modular (PWM) control. Discontinuous current mode (DCM) operation is implemented to facilitate shuffling between configurations during the converter operation. Such flexibility ensures maximum benefit of the buck, boost, and the buck--boost operations (e.g., low device stresses, higher efficiency, higher boosting capability, etc.). The PWM is achieved by comparing a high frequency carrier (triangular) waveform with a suitable reference waveform, which is not necessarily sinusoidal, but has a shape specific to the individual configuration and is derived by equating the power fed into the grid with that extracted from the source during each switching cycle. The values of the components (inductors and capacitors) need to be optimized so that DCM is maintained and the required amount of energy is transferred to the grid in all the three configurations during their respective operation. All the design expressions have been derived. A salient feature of this inverter is its compatibility with various types of sources (PV array, fuel cell, etc.) with varying voltage levels and control requirements. Being single-stage, the proposed topology offers additional advantages like modularity, compactness, and low cost. All the details of simulation and experimental work are presented.
 
Publisher IEEE
 
Date 2008-12-01T04:55:36Z
2011-11-25T16:10:17Z
2011-12-26T13:05:27Z
2011-12-27T05:52:26Z
2008-12-01T04:55:36Z
2011-11-25T16:10:17Z
2011-12-26T13:05:27Z
2011-12-27T05:52:26Z
2008
 
Type Article
 
Identifier IEEE Transactions on Energy Conversion 23(1), 128-37
0885-8969
http://dx.doi.org/10.1109/TEC.2007.905066
http://hdl.handle.net/10054/204
http://dspace.library.iitb.ac.in/xmlui/handle/10054/204
 
Language en_US