Open AccessAssessment of Equal and Unequal Amplitude Carriers for a 1Φ Five Level Flying Capacitor Multilevel Inverter
Author(s) -
P. Sureshpandiarajan,
S. P. Natarajan,
C. R. Balamurugan,
K. Ramasamy
Publication year - 2015
Publication title -
telkomnika: indonesian journal of electrical engineering/telkomnika
Language(s) - English
Resource type - Journals
eISSN - 2460-7673
pISSN - 2302-4046
DOI - 10.11591/tijee.v15i2.1535
Subject(s) - pulse width modulation , total harmonic distortion , root mean square , capacitor , inverter , amplitude , h bridge , mathematics , voltage , electronic engineering , control theory (sociology) , electrical engineering , physics , computer science , engineering , optics , control (management) , artificial intelligence
This work presents the comparison of various Pulse Width Modulation (PWM) techniques for the chosen single phase half bridge FCMLI (Flying Capacitor Multi Level Inverter). In this paper, a single phase half bridge flying capacitor multilevel inverter is controlled with sinusoidal, THI (Third Harmonic Injection), Trapezoidal and TAR (Trapezoidal Amalgamated Reference)reference with Equal Amplitude Carriers (EAC) and UEAC (Un Equal Amplitude Carriers). The proposed EAC and UEAC is applied for various PWM strategies. The PWM methods used for the analysis are PD (Phase Disposition) PWM, POD (Phase Opposition and Disposition) PWM, APOD (Alternative Phase Opposition and Disposition) PWM and CO (Carrier Overlapping) PWM with EAC and UEAC. For all the PWM methods and references the UEAC produces less THD and higher fundamental RMS (Root Mean Square) values except for m a =1. For m a =1 the EAC provides less THD (Total Harmonic Distortion) and higher fundamental RMS (Root Mean Square) values for all the PWM methods and references. To validate the developed technique, simulations are carried out through Power System Block Set.