Suplai DC Terpisah untuk Multilevel Inverter Satu Fase Tiga Tingkat Menggunakan Buck Converter
Abstract: DC chopper or DC to DC
converter is a power electronics circuit which convert DC voltage to desired
variable DC voltage. This paper presents the making of DCChopper in Buck
converter type which is used as separated DC power supply for one phase
multilevel inverter in three level. This Buck converter produce variable
voltage which can be adjusted by duty cycle control in order to meet one phase
multilevel inverter need. Duty cycle is obtained by using pulse width
modulation technique with constant
frequency range 2 kHz. This separated DC power supply is made from three
Buck converter which is consist of three MOSFET as switching components.
Triggering signal for MOSFET is produced and controlled by microcontroller
AT89S51. This system is made in open loop with one phase multilevel inverter as
the load. As a result, this DC chopper is able to supply multilevel inverter
with duty cycle varitation for the first and third stage Buck converter is
20% - 65%, and 50% - 95% for the seccond
stage Buck converter.
Penulis: Agung Warsito,
Mochammad Facta, Donny A.W.
Kode Jurnal: jptlisetrodd080042
