With the rapid development of voltage source converter-based high-voltage direct current (HVdc) transmission, it is an irresistible trend that HVdc grid will come into being. High-voltage and high-power dc/dc converters serve as dc transformers in to interconnect lines with different ratings. This article proposes a monopolar symmetrical converter which composed cascaded half-bridge submodules ...

In scenarios involving text classification where the number of classes is large (in multiples of 10000s) and training samples for each class are few and often verbose, nearest neighbor methods are effective but very slow in computing a similarity score with training samples of every class. On the other hand, machine learning models are fast at runtime but training them adequately is not feasibl...

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...

This paper presents the comparative study of three phase twenty five level diode clamped and cascaded H-bridge multilevel inverters. The comparison is made in respect of requirement of devices, quality of output voltage and reduction of total harmonic distortion at the multilevel inverter terminals. In this work multicarrier sinusoidal pulse modulation control methods of Phase disposition (PD-P...

Abstract Based on a 6 cm-long two-segment hybrid capillary discharge waveguide, multi-GeV electron beam with energy up to 3.2 GeV and 9.7% rms spread was achieved in cascaded laser wakefield acceleration scheme, powered by an on-target 210 TW pulse. The trapped the first segment via ionization-induced injection, then seeded into second for further acceleration. long-distance stable guiding of p...

Cascaded GMW sequences have two-level autocorrelation functions, which have important applications in communications and cryptology. In this paper, we consider the cascaded GMW sequences corresponding to a xed nite chain of nite elds, and study the problem of how to determine all these diierent cascaded GMW sequences without repetition, and the problem of whether the diierent cascaded GMW seque...