نتایج جستجو برای: thd

تعداد نتایج: 1651  

2017
Zhichao Liu Bin Zhang Keliang Zhou

Repetitive control (RC) scheme presents an attractive solution to achieve excellent steady-state tracking error and low total harmonic distortion (THD) for periodic signals. RC can produce extremely large gains at fundamental and each harmonic frequency of reference signal to achieve all harmonics suppression. However, a DC-AC inverter always has uneven THD distribution, e.g. THD concentrates a...

Journal: :Clinical cancer research : an official journal of the American Association for Cancer Research 2004
Marta Ruiz Hiroya Kobayashi Juan José Lasarte Jesús Prieto Francisco Borrás-Cuesta Esteban Celis Pablo Sarobe

PURPOSE The purpose of this research was to identify promiscuous T-helper cell determinants (THd) from carcinoembryonic antigen (CEA) to be used to prime T-cell help for cancer therapy. CEA was selected because this antigen is expressed in an important variety of carcinomas. EXPERIMENTAL DESIGN Potential promiscuous THd from CEA were predicted using available computer algorithms. Predicted pe...

2015
Zhe Huang Wayne W. Weaver Mahdi Shahbakhti Saeid Nooshabadi Daniel R. Fuhrmann

The voltage source inverter (VSI) and current voltage source inverter (CSI) are widely used in industrial application. But the traditional VSIs and CSIs have one common problem: can’t boost or buck the voltage come from battery, which make them impossible to be used alone in Hybrid Electric Vehicle (HEV/EV) motor drive application, other issue is the traditional inverter need to add the dead-ba...

2013
Preethi Thekkath

The main focus of this article is to investigate the effects of Adaptive control on the switching frequency and Total Harmonic Distortion of a modified, minimally switched hysteresis controlled shunt active power filter. Reference current generation was done using Instantaneous real and reactive power algorithm. Pulses to the minimally switched grid interactive inverter in which only two switch...

2012
Rupali Mohanty

Converters are used in the utility interface of renewable energy system to reduce harmonic contents in line current/voltage and to increase reliability. These converters suffer from high level of Total Harmonic Distortion (THD) in the utility line currents/voltages which creates a lot of problems in the power system. In this paper selective harmonics are eliminated to reduce the THD, that is, t...

2017
Pallavi Kumari Rohit Kumar Keshari Subrata Banerjee

1,2Student, Department of Electrical Engineering, NIT Durgapur, West Bengal, India 3Professor, Department of Electrical Engineering, NIT Durgapur, West Bengal, India ---------------------------------------------------------------------***--------------------------------------------------------------------AbstractThis paper presents the design of photovoltaic module, where the panel is construct...

2015
P. Avirajamanjula P. Palanivel

Multilevel Inverters (MLIs) have drawn increasing attention in numerous applications, especially in drives, distributed energy resources area, utility etc. MLIs have the ability to synthesize a near sinusoidal output voltage wave with minimal Total Harmonic Distortion (THD) in low frequency switching. Even though they offer lower THD, the presence of lower order harmonics is objectionable and h...

2015
B. Abdul Saleem Y. Vishnu Vardhan Reddy

In this paper, an advance repetitive control method (RCM) for fuzzy current control based grid connected inverter with a frequency adaptive capability is proposed. The main objective of the proposed scheme is to reduce total harmonic distortion (THD) such that by changing the FIR filter according to varied grid frequency and keeps the resonant frequencies fitting the grid fundamental and harmon...

2015
Suman Ghosh Sushanta Mahanty

This paper presents the simulation of 3, 5, 7level inverters. The realization of these three different levels is done by cascading one, two, three H-bridges in series respectively in MATLAB. The use of simple control strategy which is applied for switching the switches at appropriate conducting angles with proper delays is presented in this paper. The reduction in harmonics is done with the hel...

Journal: :Molecules 2015
Vladimír Forman Mária Haladová Daniel Grančai Mária Ficková

Cornaceae plants are known for their edible berries, and their leaves are used as tea. In the present study aqueous leaf extracts from Cornus mas (CM), C. alba (CA), C. flaviramea (CF), C. kousa (CK), and C. officinalis (CO) were tested for their antiproliferative activity in human breast cancer cells (MCF-7). Dose- (50-750 µg/mL) and time (24, 48, 72 h)-dependent antiproliferative effects were...

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