Abstract: The simultaneous elimination of common-mode voltage and DC-link capacitor voltage imbalance is achieved in a five-level inverter scheme for an induction motor drive throughout its operating range. A dual five-level inverter-fed open-end-winding induction motor structure is used for the proposed drive. Initially, the operating limitations of achieving this dual task for the fivelevel i...

This paper focuses on developing a low cost and a low harmonic traditional three level inverter (H-Bridge) using pulse pattern. Multilevel inverter as compared to traditional three level inverters have advantages like low harmonic contents and low electromagnetic interference (EMI) outputs and can operate on several voltage levels. The drawbacks includes: The requirement of isolated power suppl...

This paper proposes a single-phase five-level inverter with a modified pulse width-modulated (PWM)control scheme. The modified pulse width-modulation technique is developed to reduce switching loss.Also, the proposed multilevel inverter can reduce the requirement of power switches compared to aconventional cascaded multilevel inverter. The modes of operation, control signals, and operatingprinc...

Multilevel inverter has so many advantages than conventional two level inverter. As the number of level increases the output approaches to a pure sinusoidal wave.Multilevel inverter using both fundamental frequency switching and higher frequency switching. In this paper discuss only about higher frequency switching.In higher frequency switching we are using two signals, one is reference signal ...

This paper compares the performance of direct torque control of induction motor using two-level and three-level inverters. The main objective of this paper is to improve the performance of direct torque control of induction motor using three-level inverter without affecting its simplicity. The basic switching table based direct torque control of induction motor using two-level inverter is first...

Multilevel inverter technology has emerged recently as a very important alternative in the area of high-power medium-voltage energy control. This paper presents modeling and simulation of a single phase simplified eleven-level inverter (SELl). Multilevel inverter offers high power capability. Its performance is highly superior to that of conventional two-level inverter due to reduced harmonic d...

Multilevel inverter technology has emerged recently as a very important alternative in the area of high power medium-voltage control and also for improving the total harmonic distortion by reducing the harmonics. Generally, the poor quality of voltage and current of a conventional inverter fed induction machine is obtained due to the presence of harmonics and hence there is a significant level ...

In PWM inverter-fed drives, a variation of Common mode voltage (CMV) causes unbalanced voltage operation in induction motor. Multilevel inverters reduce this problem, but the complexity of the power circuit increases with an increase in the number of inverter voltage levels. In this paper, a five-level inverter is compared with two, three and four levels and this five level structure is propose...

This paper presents a Multi-Carrier Pulse Width Modulation control for a Single-phase 27-level Hybrid Multi-Level Inverter for photovoltaic systems. Multi-Carier Pulse Width Modulation technique uses a easy mapping to generate gate signals for the inverter.The Maximum Power Point Tracking is capable of extracting maximum power from PV array connected to each DC linkage voltage stage. The Maximu...

Multilevel voltage source inverter has been recognized as an important alternative to the normal two level voltage source inverter, especially in high power application. Using multilevel technique, the output voltage amplitude is increased, switching devices stress is reduced and the overall harmonics profile is improved. Three presentable topologies can b considered for multilevel inverter (ML...