scholarly journals Development and implementation of two-stage boost converter for single-phase inverter without transformer for PV systems

2020 ◽  
Vol 10 (1) ◽  
pp. 660
Author(s):  
Basem E. Elnaghi ◽  
Mohamed E. Dessouki ◽  
M. N. Abd-Alwahab ◽  
Elwy E. Elkholy
Keyword(s):  
Pulse Width ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Sine Wave ◽  
Boost Converter ◽  
Innovative Technology ◽  
Two Stage ◽  
Phase Inverter ◽  
Pv Systems ◽  
Single Phase Inverter

This paper offers a two-stage boost converter for a single-phase inverter without transformer for PV systems. Each stage of the converter is separately controlled by a pulse width modulated signal. A Simulink model of the converter using efficient voltage control topology is developed. The proposed circuit performance characteristics are explained and the obtained simulation results are confirmed through the applied experiments. Moreover, this paper has examined the control circuit of a single-phase inverter that delivers a pure sine wave with an output voltage that has the identical value and frequency as a grid voltage. A microcontroller supported an innovative technology is utilized to come up with a sine wave with fewer harmonics, much less price and an easier outline. A sinusoidal pulse width modulation (SPWM) technique is used by a microcontroller. The developed inverter integrated with the two-stage boost converter has improved the output waveform quality and controlled the dead time as it decreased to 63 µs compared to 180 µs in conventional methods. The system design is reproduced in Proteus and PSIM Software to analyze its operation principle that is confirmed practically.

scholarly journals Comparative investigations on different types of inductors in single-phase inverter

2021 ◽  
Vol 2107 (1) ◽  
pp. 012051
Author(s):  
M. Z. Aihsan ◽  
A. M. Yusof ◽  
Hasliza A Rahim ◽  
B. Ismail ◽  
W. A. Mustafa ◽  
...  
Keyword(s):  
Pulse Width ◽  
Single Unit ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Bridge Circuit ◽  
Experimental Assessment ◽  
Phase Inverter ◽  
Different Types ◽  
Single Phase Inverter ◽  
Validation Of Results

Abstract This article organized in two sections where it compares the performance of single-phase inverters using various types of inductors with differences modulation technique of pulse width modulation (PWM). Not all inductors perform the same function, even the inductance value is the same. The study will investigate the capability of each inductor on its performance to convert the unfiltered AC voltage into filtered sinusoidal AC voltage. The drum core and toroidal core inductors were used in this investigation. For both inductors, the performance will be analyzed based on Bipolar and Unipolar switching schemes in a single unit H-bridge circuit. The validation of results are through experimental assessment only and it will be evaluating the shape of sinusoidal AC voltage and the content of total harmonics distortion in the AC voltage for both inductors.

Confined Band Variable Switching Frequency Pulse Width Modulation (CB-VSF PWM) for a Single-Phase Inverter With an LCL Filter

2017 ◽  
Vol 32 (11) ◽  
pp. 8593-8605 ◽  
Author(s):  
Hussain A. Attia ◽  
Tan Kheng Suan Freddy ◽  
Hang Seng Che ◽  
Wooi Ping Hew ◽  
Ahmad H. El Khateb
Keyword(s):  
Pulse Width ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Switching Frequency ◽  
Lcl Filter ◽  
Phase Inverter ◽  
Single Phase Inverter ◽  
Frequency Pulse
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