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In this paper reactive power compensation using an infinite level inverter based STATCOM is proposed. Nowadays, the society is becoming increasingly dependent on the electrical supply. New equipment's are more sensitive to power quality variations. This causes the transmission line to transfer equal or sometimes more than its capacity, which leads to overloading, voltage fluctuations etc. in the system...
The paper proposes an original DC-AC inverter that is based on combination of buck converter with standard three-level H-bridge inverter. This inverter uses simple feed-forward control in order to obtain almost sinusoidal output currents and voltages.
Multi-level inverter technology has emerged recently as a very important alternative in the area of medium-voltage high-power energy control. Due to higher number of dc voltage sources, lower EMI, requirement of semiconductor power devices with less blocking voltage, lower % THD in output voltage and less stress on insulation, they are widely used. However, it has some disadvantages as complicated...
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