In recent years, voltage source multilevel converters are very popular in medium/high-voltage industrial applications, among which the NPC/H-Bridge converter is a popular solution to the medium/high-voltage drive systems. The conventional finite control set model predictive control (FCS-MPC) strategy is not practical for multilevel converters due to their substantial calculation requirements, e...

Multilevel inverters with space vector pulse width modulation strategy are gained importance in high power high performance industrial drive applications.This paper presents a simplified space vector PWM method for a two-level and three level inverter The threelevel inverter has a large number of switching states as compared to two level inverter. In the proposed scheme, three-level space vecto...

Multilevel PWM waveforms can be decomposed into several multilevel PWM components. Phase-shifted carrier (PSC) is an efficient decomposition technique. In this paper, we have first demonstrated the equality of PSC and alternative phase opposition disposition techniques. Second, we have modified PSC to accommodate other disposition techniques. Third, we have investigated the effects of using...

Multilevel Inverters has big placement advantages in Power Electronics and its application can be mentioned to FACTS tools such as UPFC – D-STATCOM. Therefore, nowadays Multilevel Inverters have created vast field’s research and researchers are trying to present appropriate structures with fewer keys and greater advantages. The main advantages of Multilevel Inverters mentioned are low-key volta...

This article proposes a capacitor condition monitoring (CM) method for modular multilevel converter (MMC) in motor drive applications. The proposed is based on wavelet decomposition of transient voltage signals, which independent modulation schemes and control strategies. equivalent series resistance (ESR) change can be detected with moderate computation requirement. Both simulation experimenta...

the purpose of this paper is to reconsider the theoretical basis and paradigms of policy making and economic policies in iran which is not appropriate to economic problems of the country. to do so, we introduced the multilevel and ultra-paradigm pattern for economic policy making in the country. the multilevel and interdisciplinary approach have been proposed as a solution for reforming the eco...

Abstract Two or more independent species lineages can fuse through an evolutionary transition to form a single lineage, such as in the case of eukaryotic cells, lichens, and coral. The fusion two requires intermediary steps increasing selective interdependence between these lineages. We argue precursory regime be Multilevel Selection 1 (MLS1). propose that intraspecies MLS1 extended ecological ...

Direct torque control (DTC) is a method applied in induction motor (IM) drives to the speed and of IM accurately independently without feedback signal. However, fast fourier transform (FFT) analysis, total harmonic distortion (THD) high DTC with conventional inverter (CI). Therefore, purpose this study minimize THD affecting drive’s performance. A drive multilevel (MLI) proposed reduce preserve...