A Nonlinear Controller for Single Phase Inverter with Uncertain Output LC Filter Feeding A Nonlinear Load

2018 ◽  
Author(s):  
Turker Turker ◽  
Faruk Bakan
Keyword(s):  
Single Phase ◽  
Nonlinear Controller ◽  
Filter Feeding ◽  
Nonlinear Load ◽  
Phase Inverter ◽  
Single Phase Inverter ◽  
Lc Filter

Single Phase Inverter System using Proportional Resonant Current Control

2017 ◽  
Vol 8 (4) ◽  
pp. 1913
Author(s):  
K.C. Chen ◽  
S. Salimin ◽  
S. A. Zulkifli ◽  
R. Aziz
Keyword(s):  
Single Phase ◽  
Harmonic Distortion ◽  
Harmonic Spectrum ◽  
Current Control ◽  
Nonlinear Load ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Phase Inverter ◽  
Current Controller ◽  
Single Phase Inverter

<span>This paper presents the harmonic reduction performance of proportional resonant (PR) current controller in single phase inverter system connected to nonlinear load. In the study, proportional resonant current controller and low pass filter is discussed to eliminate low order harmonics injection in single phase inverter system. The potential of nonlinear load in producing harmonics is showed and identified by developing a nonlinear load model using a full bridge rectifier circuit. The modelling and simulation is done in MATLAB Simulink while harmonic spectrum results are obtained using Fast Fourier Transfor. End result show PR current controller capability to overcome the injection of current harmonic problems thus improved the overall total harmonic distortion (THD).</span>

Optimal Voltage Control for Single-Phase Inverter with Resonant LC Filter via Type-2 ILQ Servo-Control by 2nd-Order Polynomial

2012 ◽  
Vol 622-623 ◽  
pp. 1514-1518
Author(s):  
Sidshchadhaa Aumted ◽  
Shuta Kanda ◽  
Hiroshi Takami ◽  
Shoji Tatsuno
Keyword(s):  
Output Voltage ◽  
Single Phase ◽  
Voltage Control ◽  
Phase Delay ◽  
Servo Control ◽  
Phase Inverter ◽  
Order Polynomial ◽  
Single Phase Inverter ◽  
Lc Filter

In this paper, we propose an optimal voltage control for single-phase inverter with resonant LC filter via type-2 ILQ servo-control by 2nd-order polynomial. The improved ILQ control enables to follow the time-variant sinusoidal reference-voltage without phase delay. The excellent voltage control is achieved through the suppression of resonant output voltage.

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