This paper proposes two methodologies that are extended from the existing Cascaded Multilevel Inverter Employing Three-Phase Transformers and Single DC Input topology . The proposed circuit configuration can reduce the number of switches required to convert the input DC power into AC power when compared with traditional method. However Simulation results reveals that the THD variation of the pr...

This senior project report describes the process of designing a unipolar inverter. This high low, unipolar inverter utilizes switches in which a pair operates in high frequency while a second pair operates in low frequency. The purpose of this project is to convert a range of high DC voltage and convert it to an AC output voltage of 120 Vrms with a power rating of 100 W. Nonetheless, this parti...

Received Sep 19, 2017 Revised Dec 30, 2017 Accepted Jan 17, 2018 Penetration of multilevel inverters (MLI) in to high power and medium voltage application has been increasing because of its advantages. A conventional two level inverter has high harmonic distortion which gives poor power quality. Lot of topologies has been developed to overcome the drawbacks of two level inverter. These topologi...

This paper presents optimal design of three-phase multilevel inverter for distributed power generation system using low frequency modulation and sinusoidal pulse width modulation as well. It is a modular type and it can be extended for extra number of output voltage levels by adding additional modular stages. The impact of the proposed topology is its proficiency to maximize the number of volta...

The multi level inverter system is mostly used in ac drives, when both reduced harmonic contents and high power are required. In this paper a new topology of multilevel inverter is introduced. This type has many steps with less power electronic switches. Due to the less number of switches the cost of the inverter is very less and also less installation area is required. Firstly, we describe bri...

Solar energy based micro-inverters are becoming more popular. Each solar panel in a system has its own low power inverter, its possibility to shading and PV cell malfunction is less. The micro-inverter is the integration of inverter and PV module in one electrical device. Micro-inverters convert the DC power from one PV module (solar panel) to the AC grid, and are designed for an output power i...

The plug-in hybrid electric vehicles (PHEVs) are specialized hybrid electric vehicles that have the potential to obtain enough energy for average daily commuting from batteries. The PHEV battery would be recharged from the power grid at home or at work and would thus allow for a reduction in the overall fuel consumption. This paper proposes an integrated power electronics interface for PHEVs, w...

Permission is given to copy this work provided credit is given and copies are not intended for sale. Use or inclusion of any portion of this ETD in a work intended for commercial use will require clearance by the copyright owner. Abstract Distributed generation for consumer applications is a relatively new field and it is difficult to satisfy both cost and performance targets. High expectations...

This paper presents the comparison of Unipolar Inverted Sine Carrier Pulse Width Modulation (UISCPWM) techniques for the Cascaded Multi Level Inverter (CMLI). Due to switch combination redundancies, there are certain degrees of freedom to generate the multilevel AC output voltage. This paper presents the use of Control Freedom Degree (CFD) combination. The effectiveness of the pulse width modul...

This paper presents the comparison of various multicarrier Pulse Width Modulation (PWM) techniques for the Cascaded Hybrid Multi Level Inverter (CHBMLI). Due to switch combination redundancies, there are certain degrees of freedom to generate the five level AC output voltage. This paper presents the use of Control Freedom Degree (CFD) combination. The effectiveness of the PWM strategies develop...