Open AccessApplication of voltage multiplier in 12‐pulse rectifier for sinusoidal input current
Author(s) -
Saravana P.P.,
Kalpana R.,
Singh B.,
Bhuvaneswari G.
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2018.5084
Subject(s) - harmonics , transformer , electrical engineering , autotransformer , voltage doubler , voltage , pulse width modulation , electronic circuit , electronic engineering , computer science , engineering , control theory (sociology) , voltage source , distribution transformer , dropout voltage , control (management) , artificial intelligence
A DC current injection circuit of a trifurcated autotransformer (TAT)‐based 12‐pulse diode bridge rectifier (DBR) is proposed which can help reduction of harmonics in the AC mains. The circuit at the DC side employs a voltage multiplier (VM) circuits namely voltage doubler, voltage tripler and voltage quadrupler and an interphase transformer which provides the required circulating current. This induced circulating current shapes the input AC line current near to a sine wave. The output of VM circuits is connected across the load and thereby reuses the harmonic energy absorbed by the system. Thus, improves the energy conversion efficiency of the proposed system. The TAT‐based 12‐pulse DBR has the implicit ability to prevent the zero sequence components thus expels the necessity of zero sequence blocking transformer. The proposed configuration is analysed, simulated in MATLAB Simulink and the simulation results are presented, which confirms the improvement in power quality parameters in the input AC line current. Further, the viability of the proposed configuration is verified by experimental results which confirm the suitability of the proposed configuration in AC–DC applications.