A novel Z-source three-level inverter based on coupled inductors is proposed. The two inductors in traditional Z-source impedance network are replaced by two coupled inductors. The operating principle is described and the equations of boost factor and voltage stresses are deduced. Comparisons are made with other Z-source three-level inverters, especially the multicell switched inductor Z-source...

This paper presents the concert exploration of a Modular Multilevel Converter (MMC) and its application for D-STATCOM. The Half Bridge (HB) sub-module is adopted in MMC due to simplicity low conduction losses. An advanced modulation technique Phase Disposition (PD) scheme applied control HB switches. converters are facing DC voltage balance problems under non-linear load conditions. Proportiona...

<span>This paper presents an analytical comparison between two-level inverter and three-level neutral point diode clamped inverters for electric vehicle traction purposes. The main objective of the research is to declare differences in performance two schemes terms switching conduction losses over entire domain modulation index phase angle distribution, steady-state operation, transient o...

In this study, a fault diagnostic system in a multi-level inverter using a MLP network is developed. Using a mathematical model, it is difficult to diagnose a Multilevel-Inverter Drive (MLID) system, because MLID system complexity has a non-linear factor and it consist of many switching devices. Therefore neural network classification is applied to fault diagnosis of MLID system. Multilayer per...

This paper presents an investigation of five-Level Cascaded H – bridge (CHB) Inverter as Distribution Static Compensator (DSTATCOM) in Power System (PS) for compensation of reactive power and harmonics. The advantages of CHB inverter are low harmonic distortion, reduced number of switches and suppression of switching losses. The DSTATCOM helps to improve the power factor and eliminate the Total...

In this paper, we study the unbalance problem of the input Direct Current (DC) voltages of the five-level neutral point clamping (NPC) voltage source inverter (VSI) used in hybrid renewable energy system. The hybrid system is composed of doubly fFed induction generator (DFIG) driven by wind turbine, the rotor is connected to three fivelevel NPC VSI feed by photovoltaic voltage source. We show p...