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In modern power networks, the issue of power quality (PQ) is becoming very important because of the increasing of load which sensitive to current disturbances. This is mainly due to the increasing use of non-linear power electronic devices draws non-sinusoidal current and creating a current distortion. As a result there is increasing need for PQ to be monitored to establish the type, sources and locations...
This paper presents a novel SPWM control method with voltage balancing capability for the diodeclamped multilevel rectifier/inverter system. A complete analysis of the voltage balance theory based on a 5-level back-to-back converter is given. The voltage balancing effects of the triplen harmonic offset voltage added to all three phase voltages are discussed. The proposed control utilizes the offset...
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