Characteristics of high efficiency and low distortion single phase 7 level inverter without using LC filter

2010 ◽  
Author(s):  
Kenji Amei ◽  
Takahisa Ohji ◽  
Masaaki Sakui
Keyword(s):  
Single Phase ◽  
High Efficiency ◽  
Low Distortion ◽  
Lc Filter

scholarly journals Investigation on the La Replacement and Little Additive Modification of High-Performance Permanent Magnetic Strontium-Ferrite

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1034
Author(s):  
Ching-Chien Huang ◽  
Chin-Chieh Mo ◽  
Guan-Ming Chen ◽  
Hsiao-Hsuan Hsu ◽  
Guo-Jiun Shu
Keyword(s):  
High Performance ◽  
Single Phase ◽  
Permanent Magnets ◽  
High Efficiency ◽  
Cobalt Content ◽  
Preparation Condition ◽  
Milling Process ◽  
Experimental Parameters ◽  
La Substitution ◽  
Hard Magnets

In this work, an experiment was carried out to investigate the preparation condition of anisotropic, Fe-deficient, M-type Sr ferrite with optimum magnetic and physical properties by changing experimental parameters, such as the La substitution amount and little additive modification during fine milling process. The compositions of the calcined ferrites were chosen according to the stoichiometry LaxSr1-xFe12-2xO19, where M-type single-phase calcined powder was synthesized with a composition of x = 0.30. The effect of CaCO3, SiO2, and Co3O4 inter-additives on the Sr ferrite was also discussed in order to obtain low-temperature sintered magnets. The magnetic properties of Br = 4608 Gauss, bHc = 3650 Oe, iHc = 3765 Oe, and (BH)max = 5.23 MGOe were obtained for Sr ferrite hard magnets with low cobalt content at 1.7 wt%, which will eventually be used as high-end permanent magnets for the high-efficiency motor application in automobiles with Br > 4600 ± 50 G and iHc > 3600 ± 50 Oe.

Dy 3+ ‐doped Y 3 Al 5 O 12 transparent ceramic for high efficiency ultraviolet excited single‐phase white‐emitting phosphor

2018 ◽  
Vol 102 (6) ◽  
pp. 3510-3516 ◽  
Author(s):  
Ruilin Zheng ◽  
Jianyong Ding ◽  
Qi Zhang ◽  
Binbin Li ◽  
Zhongyue Wang ◽  
...  
Keyword(s):  
Single Phase ◽  
High Efficiency ◽  
Transparent Ceramic

An L-band high-efficiency and low-distortion power amplifier using HPF/LPF combined interstage matching circuit

2000 ◽  
Vol 48 (12) ◽  
pp. 2560-2566 ◽  
Author(s):  
K. Mori ◽  
S. Shinjo ◽  
F. Kitabayashi ◽  
A. Ohta ◽  
Y. Ikeda ◽  
...  
Keyword(s):  
Power Amplifier ◽  
High Efficiency ◽  
L Band ◽  
Low Distortion

scholarly journals Advanced partial nucleation for single-phase FA0.92MA0.08PbI3-based high-efficiency perovskite solar cells

2019 ◽  
Vol 62 (12) ◽  
pp. 1846-1856 ◽  
Author(s):  
Pengju Shi ◽  
Yong Ding ◽  
Cheng Liu ◽  
Yi Yang ◽  
Zulqarnain Arain ◽  
...  
Keyword(s):  
Solar Cells ◽  
Single Phase ◽  
High Efficiency ◽  
Perovskite Solar Cells

scholarly journals High-Efficiency Bi-Directional Single-Phase AC/DC Converter Design and Field Application for LVDC Distribution

Energies ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 2191 ◽  
Author(s):  
Juyong Kim ◽  
Hongjoo Kim ◽  
Jintae Cho ◽  
Youngpyo Cho
Keyword(s):  
Distribution System ◽  
Single Phase ◽  
High Efficiency ◽  
Low Voltage ◽  
Control Function ◽  
High Reliability ◽  
Power Converter ◽  
Field Application ◽  
Distribution Grid ◽  
Demonstration Site

This paper describes the design and field application of a high-efficiency single-phase AC/DC converter that is suitable for distribution lines. First, an appropriate AC/DC converter was designed in consideration of the environment of the application system. In order to ensure high efficiency and high reliability, we designed an optimum switching element and capacitor suitable for the converter, and the protection element of the AC/DC converter was designed based on these elements. The control function for the power converter suitable for an LVDC distribution system is proposed for highly reliable operation. The AC/DC converter was manufactured based on the design and its performance was verified during application in an actual low-voltage DC (LVDC) distribution grid through tests at the demonstration site. The application to a DC distribution system in an actual grid is very rare and it is expected that it will contribute to the expansion of LVDC distribution.

scholarly journals Design of High Efficiency Single-Phase Bridge Passive Inverter Based on SG3525

2019 ◽  
Vol 688 ◽  
pp. 033023
Author(s):  
Zhen Zhu ◽  
Renda Wang ◽  
Yong Yin ◽  
Shengwei Xing
Keyword(s):  
Single Phase ◽  
High Efficiency

Normally Bypassed Cascaded Sources Multilevel Inverter with RGA Optimization for Reduced Output Distortion and Formulaic Passive Filter Design

2019 ◽  
Vol 29 (02) ◽  
pp. 2050019
Author(s):  
G. Chitrakala ◽  
N. Stalin ◽  
V. Mohan
Keyword(s):  
Distributed Generation ◽  
Single Phase ◽  
Filter Design ◽  
Circuit Complexity ◽  
Optimization Scheme ◽  
Dc Voltage ◽  
Multilevel Inverters ◽  
Harmonic Content ◽  
Lc Filter

The distributed generation involving multiple photovoltaic sources and synthesizing high-quality ac voltage from those multiple dc sources are nascent research ambits. A host of multilevel inverters (MLIs) has been ascertained for performing above errand diligently, where the component count is obnoxious. The single phase seven-level inverter is an acquiescent compromise between the circuit complexity and the quality of the output. Further enhancement on the performance can be succored through optimizing dc link voltages and switching angles. This paper proposes a component count pruned MLI structure and also a refined genetic algorithm (RGA)-based optimization scheme for the computation of both dc link voltages and switching angles. Previous attempts for this problem have solved the switching angles with the objective of resulting minimum harmonic content in the staircase-shaped output voltage. The dc link voltage of each level is however assumed to be the same and constant. As an extension, RGA-based optimization of both dc link voltages and switching angles is triumphed. The harmonic profile of the proposed switching strategy is simulated and also corroborated by a hardware prototype. In practice, the proposed fundamental switched strategy is apposite, in which each dc voltage can be self-maintained and independently controlled. In addition, a method for designing the passive LC filter is also presented.

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