Abstract— In this paper, a simplified type of twenty
four pulse rectifier has been proposed for dc applications,
the twenty four pulse converter has been obtained from
combining four six pulse rectifier in parallel, since these
rectifier are connected to two 3 phase transformers, so
that the desired phase shift is obtained by utilizing star
and delta connections. So every individual six pulse
rectifier output is supplementary to induce the relevant
voltages. The look of twenty four pulse converter
primarily focuses on harmonics reduction, commonly
diode rectifiers is wide used for AC/DC conversion. a
serious disadvantage is, the rectifiers can inject giant
harmonic distortion within the input currents. Clearly a
12-pulse device is employed for reducing the harmonics
injected; however it additionally includes the (12n±1)
harmonics within the input currents. So as to scale back
the harmonics within the input current, the twenty four
pulse rectifier is projected. Wherever it'll reduce the
lower order harmonics like 5th, 7th, 11th and 13th.
though Its reduces the low order harmonics , however the
AC output voltage from transformer would have 24n±1
order harmonics due to the phase shift concerned in
transformer. However this twenty four pulse device is
relatively a lot of economical than alternative rectifiers
was concisely explained, verified and stimulated by using
MATLAB & SIMULINK package.