Design and Implementation of Scalable DBF Multi Beam Receiving Module Based on Multi-level FPGA

2020 ◽  
Author(s):  
Zhihuang Lin ◽  
Weiling Guo ◽  
Shangyu Xie ◽  
Zhaojian Jin
Keyword(s):  
Design And Implementation ◽  
Multi Level ◽  
Receiving Module

scholarly journals Harmonics reduction of a five-level inverter by unbalanced carriers and over-modulation techniques

2018 ◽  
Vol 7 (3) ◽  
pp. 1059
Author(s):  
Mustafa Fawzi Mohammed ◽  
Ali Husain Ahmad ◽  
AbdulRahim Thiab Humod
Keyword(s):  
Fundamental Frequency ◽  
Output Voltage ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Total Harmonic Distortion ◽  
Modulation Method ◽  
Labview Software ◽  
Design And Implementation ◽  
Modulation Techniques ◽  
Multi Level

The most concerns in the inverter's design are about, how to make the output voltage of the inverter sinusoidal at the desired fundamental frequency with low total harmonic distortion (THD). This paper presents a design and implementation of single-phase five-level inverter which is powered by single dc source and based on T-type multi-level inverters construction. The proposed inverter is built mainly by six IGBTs and two diodes. The used modulation technique is based on using two triangular carriers at 2000 Hz frequency and shifted by phase opposition disposition (POD) method. The carriers are made slightly unbalanced with their amplitudes. The over-modulation method is also introduced in the design to get the lowest possible THD effect without using filters. The inverter is simulated by MATLAB SIMULINK, implemented practically, and tested with the help of LabVIEW software.  

scholarly journals Design, Analysis, and Comparison of Control Strategies for an Industrial Robotic Arm Driven by a Multi-Level Inverter

Symmetry ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 86
Author(s):  
Claudio Urrea ◽  
Daniel Jara
Keyword(s):  
Fuzzy Logic ◽  
Adaptive Control ◽  
Computer Simulations ◽  
Control Strategies ◽  
Gain Scheduling ◽  
Robotic Arm ◽  
Permanent Magnet Motor ◽  
Design And Implementation ◽  
Three Phase ◽  
Multi Level

In this article, we present the design and implementation of different control strategies for the position of a 2-Degree-of-Freedom (DoF) robotic arm, namely gain scheduling per trenches, gain scheduling by interpolation, adaptive control, and fuzzy logic. The first link of this robot is driven by an Alternating Current Brushless Permanent Magnet Motor (ACBPMM) through a three-phase multi-level inverter with 27 levels of voltage per phase. Thanks to the topologies offered by ACBPMMs and to the multi-level inverter, high commutation frequencies are reduced, as observed in the computer simulations. Additionally, to determine which proposed control strategies are the most suitable for an ACBPMM connected to a multi-level inverter, a comparative study on the performance of the controllers implemented for this robot is conducted.

Design and Implementation of Environmental Engineering and Protection Information System Based on Custom Workflow

2020 ◽  
Vol 48 (2) ◽  
pp. 03-04
Author(s):  
Chantal Simon
Keyword(s):  
Environmental Engineering ◽  
Natural Cycle ◽  
Ecological Data ◽  
Work Process ◽  
Design And Implementation ◽  
Ecological Information ◽  
Data Framework ◽  
Protection Information ◽  
Multi Level ◽  
Natural Building

The natural building and assurance data framework is a perplexing framework, which coordinates multi-framework multi-procedure and manages bigger amounts of ecological information. In the paper, present the framework dependent on work process, the framework could bargain ecological data consequently by utilizing a great deal of innovations, for example, work process, web and multi-level engineering, and so on the framework could alter itself to the changing or transformation of natural cycle and association. The force capacity of information insights and investigations in this framework could assist the prevalent divisions with settling on great choice.

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