Harmonic distortion in three-phase inverters controlled by synchronous sigma-delta-modulation

2007 ◽  
Vol 2 (6) ◽  
pp. 351-358 ◽  
Author(s):  
A. Mertens
Keyword(s):  
Harmonic Distortion ◽  
Sigma Delta Modulation ◽  
Sigma Delta ◽  
Three Phase ◽  
Delta Modulation

scholarly journals A Driving Technique for AC-AC Direct Matrix Converters Based on Sigma-Delta Modulation

Energies ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 1103 ◽  
Author(s):  
Simone Orcioni ◽  
Giorgio Biagetti ◽  
Paolo Crippa ◽  
Laura Falaschetti
Keyword(s):  
Reactive Power ◽  
Harmonic Distortion ◽  
Direct Conversion ◽  
Switching Noise ◽  
Power Comparison ◽  
Sigma Delta Modulation ◽  
Sigma Delta ◽  
Matrix Converters ◽  
Delta Modulation ◽  
Vector Modulation

Direct conversion of AC power between three-phase systems operating at different frequencies can be achieved using solid-state circuits known as matrix converters. These converters do not need energy storage elements, but they require sophisticated control algorithms to operate the switches. In this work we propose and evaluate the use of a sigma-delta modulation approach to control the operation of a direct matrix converter, together with a revised line filter topology suited to better handle the peculiarities of the switching noise produced by the sigma-delta modulation. Simulation results show the feasibility of such an approach, which is able to generate arbitrary output waveforms and adjust its input reactive power. Comparison with a space vector modulation implementation shows also better performance about total harmonic distortion, i.e., less harmonics in the input and output.

CMOS RF class-D power amplifier with bandpass sigma–delta modulation

2007 ◽  
Vol 38 (3) ◽  
pp. 439-446 ◽  
Author(s):  
Thomas Johnson ◽  
Robert Sobot ◽  
Shawn Stapleton
Keyword(s):  
Power Amplifier ◽  
Sigma Delta Modulation ◽  
Sigma Delta ◽  
Class D ◽  
Delta Modulation ◽  
Cmos Rf

On the robustness of single-loop sigma-delta modulation

2001 ◽  
Vol 47 (5) ◽  
pp. 1735-1744 ◽  
Author(s):  
C.S. Gunturk ◽  
J.C. Lagarias ◽  
V.A. Vaishampayan
Keyword(s):  
Sigma Delta Modulation ◽  
Sigma Delta ◽  
Single Loop ◽  
Delta Modulation
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