An optimized multilevel inverter is implemented for 3 phase induction motor drive. The Main Feature Of this Circuit is to boost of the Battery Voltage as twice as possible along with multilevel staircase output voltage which approaches nearly sinusoidal wave. By using appropriate switching strategy of two capacitors the desired waveform can be achieved, hence significantly reducing the number o...

Abstract— Use of multilevel inverters has become popular in recent years for high power applications and an effective and practical solution for increasing power and reducing harmonics of AC waveforms. By synthesizing the AC output voltage from several levels of DC voltages, stair case output waveform can be produced. This allows for high output voltage and simultaneously lowers the stress on t...

-----------------------------------------------------ABSTRACT----------------------------------------------------In recent years, multilevel inverters have gained much attention in the application areas of medium voltage and high power owing to their various advantages such as lower common mode voltage, lower voltage stress on power switches, lower dv/dt ratio to supply lower harmonic contents ...

This paper presents a new control technique to regulate the capacitor voltage in cascaded multilevel inverters. Without requiring transformers, the scheme proposed here allows the use of a single dc power source with the remaining n − 1 dc sources being capacitors. This paper focuses mainly to achieve an effective capacitor voltage regulation with the Phase shift modulation and energy storage u...

This project presents a three-level diode-clamped inverter feeding an asynchronous motor drive with direct torque control (DTC). The control method is based on DTC operating principles. The stator voltage vector reference is computed from the stator flux and torque errors imposed by the flux and torque controllers. This voltage reference is then generated using a diode-clamped inverter, where e...

The multilevel inverters have become more popular during the recent years. The multilevel inverters are applied in many industrial applications such as static VAR compensators, AC power supplies, drive systems, active power filters, etc. The topologies of multilevel inverter have several advantages such as low distortion in output voltage with relative low switching frequency, low harmonic and ...

This paper presents a modulation extension control algorithm for hybrid cascaded H-bridge multilevel converters. The hybrid cascaded H-bridge multilevel motor drive using only a single dc source for each phase is promising for high-power motor drive applications since it can greatly decrease the number of required dc power supplies, has high-quality output power because of its high number of ou...

This paper focuses on the development of capacitor voltage balancing methods in a flying capacitor multilevel inverter (FCMLI) fed induction motor drive. For improve the performance of flying capacitor multilevel inverter to implement a switching pattern selection scheme. This reduces capacitor voltage fluctuation without using voltage feedback and RLC Filter circuits connected in parallel with...

We show that the combined effect of photon emission and Coulomb interactions may drive an exciton-polariton system towards a dynamical coherent state, even without phonon thermalization or any other relaxation mechanism. Exact diagonalization results for a finite system (a multilevel quantum dot interacting with the lowest-energy photon mode of a microcavity) are presented in support of this st...