A Single-Phase Rectifier Having Two Independent Voltage Outputs With Reduced Fundamental Frequency Voltage Ripples

2015 ◽  
Vol 30 (7) ◽  
pp. 3662-3673 ◽  
Author(s):  
Wen-Long Ming ◽  
Qing-Chang Zhong
Keyword(s):  
Fundamental Frequency ◽  
Single Phase ◽  
Single Phase Rectifier

scholarly journals Modelling, Design and Control of Cascaded H-Bridge Single Phase Rectifier

2019 ◽  
Author(s):  
Nasiru B. Kadandani ◽  
Salaheddine Ethni ◽  
Mohamed Dahidah ◽  
Hamza Khalfalla
Keyword(s):  
Single Phase ◽  
And Control ◽  
Single Phase Rectifier

scholarly journals DC Offset Error Compensation Algorithm for PR Current Control of a Single-Phase Grid-Tied Inverter

Energies ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 2308 ◽  
Author(s):  
Jae Lee ◽  
Seon-Hwan Hwang
Keyword(s):  
Fundamental Frequency ◽  
Error Compensation ◽  
Single Phase ◽  
Detection Method ◽  
Current Control ◽  
Dc Offset ◽  
Phase Current ◽  
Compensation Algorithm ◽  
Dc Component ◽  
Offset Error

In a single-phase grid-tied inverter, the direct current (DC) offset error included in the measured grid side phase current has various causes, such as a non-ideal current sensor, unbalanced power supply of an operational amplifier, and nonlinear features of analog components in interface circuits, etc. If the DC offset error is included in the measured current, it causes the secondary harmonic of fundamental frequency and the DC component in grid phase current which result in degradation of inverter performance. In this paper, a theoretical detection method of the secondary harmonic of the fundamental frequency and a DC component in grid phase current for a proportional-resonant (PR) current control system is introduced. Based on the detection method, an algorithm for compensating DC offset error is also presented for single-phase grid-tied inverters. Simulation results and experimental verification of the DC offset error compensation algorithm are shown in this paper.

scholarly journals Harmonics reduction of a five-level inverter by unbalanced carriers and over-modulation techniques

2018 ◽  
Vol 7 (3) ◽  
pp. 1059
Author(s):  
Mustafa Fawzi Mohammed ◽  
Ali Husain Ahmad ◽  
AbdulRahim Thiab Humod
Keyword(s):  
Fundamental Frequency ◽  
Output Voltage ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Total Harmonic Distortion ◽  
Modulation Method ◽  
Labview Software ◽  
Design And Implementation ◽  
Modulation Techniques ◽  
Multi Level

The most concerns in the inverter's design are about, how to make the output voltage of the inverter sinusoidal at the desired fundamental frequency with low total harmonic distortion (THD). This paper presents a design and implementation of single-phase five-level inverter which is powered by single dc source and based on T-type multi-level inverters construction. The proposed inverter is built mainly by six IGBTs and two diodes. The used modulation technique is based on using two triangular carriers at 2000 Hz frequency and shifted by phase opposition disposition (POD) method. The carriers are made slightly unbalanced with their amplitudes. The over-modulation method is also introduced in the design to get the lowest possible THD effect without using filters. The inverter is simulated by MATLAB SIMULINK, implemented practically, and tested with the help of LabVIEW software.  

scholarly journals A Harmonic Analysis of Single-Phase Rectifier with a DC Filter Capacitor.

1992 ◽  
Vol 112 (6) ◽  
pp. 523-529 ◽  
Author(s):  
Masaaki Sakui ◽  
Toshihiro Kitamura ◽  
Hiroshi Fujita
Keyword(s):  
Harmonic Analysis ◽  
Single Phase ◽  
Filter Capacitor ◽  
Single Phase Rectifier

An Investigation of the Fundamental-Frequency Impedance of a Single-Phase Distribution Lateral

1986 ◽  
Vol 1 (1) ◽  
pp. 232-238 ◽  
Author(s):  
R. E. McCotter ◽  
H. A. Smolleck ◽  
S. J. Ranade ◽  
W. H. Kersting
Keyword(s):  
Fundamental Frequency ◽  
Single Phase ◽  
Phase Distribution

A Modified Single Phase H-Bridge Inverter for High Power Applications with Power Quality Improvement

2014 ◽  
Vol 626 ◽  
pp. 118-126
Author(s):  
S. Suresh ◽  
S. Kannan ◽  
S. Ponnayira Sundaravel
Keyword(s):  
Quality Improvement ◽  
Power Quality ◽  
Fundamental Frequency ◽  
High Power ◽  
Single Phase ◽  
Dc Voltage ◽  
Gate Control ◽  
Power Quality Improvement ◽  
Industrial Drive ◽  
Switching Mode

Various multilevel inverter topologies are widely being used for real power exchange, reactive power compensation, harmonic current mitigation on grid and industrial drive applications with fundamental frequency switching mode of gate control. Still so many topologies are being currently developed with reduced number of switches, improved waveform for power quality improvement with fundamental frequency switching and pwm switching gate control mode. This paper presents the performance analysis of modified H-bridge single phase inverter for high voltage and high power applications. The switching method has been selected to operate the inverter at fundamental frequency switching mode of gate control to be free from lower order harmonics. The inverter has the modulation technique with pre calculated switching angles to generate the required fundamental voltage with reduced Total Harmonic Distortion (THD). So, the switching losses have been reduced hence the efficiency is improved with Power Quality (PQ) improvement in voltage-current waveform. The DC input power is feed to the inverter from DC capacitor voltage divider source, contributed to give various dc voltage levels during fundamental frequency switching of different switching combinations for the generation of stepping output voltage. During dynamic load condition, the magnitude of input dc voltage level across each capacitor has not undergone through big swing to feed the power to the load without affecting generated output ac voltage. The performance of the proposed inverter has been analyzed for dynamic reactive load and induction motor. The MATLAB based simulations have been presented to validate the inverter operation for dynamic reactive load and industrial drive applications with pre calculated THD reduced switching conduction angles for PQ improvement in waveform.

Sign in / Sign up

Export Citation Format

Share Document