In the application of wind, solar and other clean energy in the grid,inverter is indispensable.Harmonic wave and unbalanced load affect the output of the inverter, the performance of the inverter control strategy directly affects the power quality.By combining proportional integral(PI), vector resonance(VR)control and repetitive control(RC),the compound control method is proposed.PI restrain the interference of DC component, the VR controller suppresses the low harmonics.RC suppresses the higher harmonics and reduce the static error, and improve the waveform qualities of converter output voltage and current.The simulation results verify the effectiveness of the proposed control method.
YAN Feng
,
HUANG Lihua
,
WANG Hui
,
TANTAI Xiaohan
,
HAN Jiao
,
YU Wei
. Composite control method for three-phase four-leg inverter[J]. Journal of Hebei University(Natural Science Edition), 2018
, 38(1)
: 105
-112
.
DOI: 10.3969/j.issn.1000-1565.2018.01.016
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