A cascaded H-bridge converter for a new type of the VLF high voltage generator
Conference proceedings article
Authors/Editors
Strategic Research Themes
No matching items found.
Publication Details
Author list: Kongnun W., Sangswang A., Chotigo S.
Publisher: Hindawi
Publication year: 2009
Start page: 89
End page: 92
Number of pages: 4
ISBN: 9781424443680
ISSN: 0146-9428
eISSN: 1745-4557
Languages: English-Great Britain (EN-GB)
View in Web of Science | View on publisher site | View citing articles in Web of Science
Abstract
This paper presents a new design of a new type of the very low frequency (VLF) high voltage generator. A new structure of the VLF generates is implemented using multilevel voltage source converter in cascaded H-bridge configuration for 0.1 Hz sinusoidal waveform generation. It consists of two main parts, a modulation unit and a high voltage switching unit. The modulation unit compares the 0.1 Hz of sinusoidal waveform with the 10 kHz of carrier waveform. The switching unit consists of 6 H-bridge modules and phase disposition (PD) multicarrier modulation scheme to generate 13 levels of PWM signals. The cascaded H-bridge converter can convert the high voltage direct current (HVDC) to the multilevel step pulse signal and filtered to the sinusoidal waveform at 0.1 Hz with a low-pass filter. The experimental result of this circuit has total harmonic distortion (THD) value less than 5% according to the IEEE 400.2 standards ฉ2009 IEEE.
Keywords
No matching items found.
Contact Information