Abstract
Modular Inverter is a kind of new multilevel inverter topology used in HVDC system and medium voltage applications like induction motor drive. Modular Multilevel inverter can operate at high voltages and current with fewer harmonic and simple filters, and without increasing the number of switches. This paper mainly focuses on simple topology for modular multilevel inverter in order to reduce the drawbacks of conventional M- level inverters such as capacitor voltage balancing during medium voltage applications. This paper addresses the basic modes of working, carrier-based sine PWM technique and voltage balancing at each capacitor for a three-level inverter are discussed. The simulation and design was carried out using MATLAB/SIMULINK software.
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