Input Current Ripples Cancellation in A New Three-level Neutral-Point-Clamped Bi-directional Coupled Quasi Z-Source Inverter

2019 ◽  
Author(s):  
Xuewei Pan ◽  
Zhicong Pang ◽  
Lei Li ◽  
Fei Zhao
Keyword(s):  
Neutral Point ◽  
Input Current ◽  
Current Ripples

A New PWM Strategy to Reduce the Inverter Input Current Ripples

2009 ◽  
Vol 24 (1) ◽  
pp. 172-180 ◽  
Author(s):  
J. Hobraiche ◽  
J.-P. Vilain ◽  
P. Macret ◽  
N. Patin
Keyword(s):  
Input Current ◽  
Current Ripples

High Power Factor LED Driver with Improved Inductance

2014 ◽  
Vol 610 ◽  
pp. 142-146
Author(s):  
Lun Qiang Chen ◽  
Qing Hua Chen ◽  
Ying Chun Liang ◽  
Yi Ming Lu
Keyword(s):  
Cost Effectiveness ◽  
Power Factor ◽  
High Power ◽  
Experimental Results ◽  
Input Current ◽  
Led Driver ◽  
Low Input ◽  
Interior Lighting ◽  
High Power Factor ◽  
Current Ripples

This paper proposes a novel high power factor LED driver based on SY5800A for interior-lighting applications. High power factor is achieved by using the transformer with back winding coil and the transformer with “sandwich” winding coil. In addition, the proposed driver features cost-effectiveness, high circuit efficiency, low input current ripples and a reduced components count. A sample driver is developed to supply a 15W LED interior-lighting module with a 0.99 power factor. Experimental results demonstrate the functionalities of the proposed circuit.

scholarly journals Simulation and Design of Neutral Point Type Buck Converter

2020 ◽  
Vol 9 (3) ◽  
pp. 2767-2772
Keyword(s):  
Power Factor ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Reference Signal ◽  
Buck Converter ◽  
Neutral Point ◽  
Input Current ◽  
Output Current ◽  
Unity Power Factor ◽  
Point Type

This paper presents the simulation and design of Neutral Point Type (NPT) converters that have been used to increase power factor near one (1) which is unity. The circuit of the simulation has been design using Simulink MATLAB. The circuit was set to 50 kHz to generate Pulse Width Modulation (PWM) with carrier signal and comparing it with the reference signal. By adjusting the capacitor in the main circuit, the result of the simulation shows that the input current and voltage were in phase which is unity power factor while the output current and voltage produced having a low ripple. Thus, the simulation shows that the Neutral Point Buck type converter is suitable for maximizing power factor close to unity (1).

scholarly journals Optimized Multiport DC/DC Converter for Vehicle Drivetrains: Topology and Design Optimization

2018 ◽  
Vol 8 (8) ◽  
pp. 1351 ◽  
Author(s):  
Duong Tran ◽  
Sajib Chakraborty ◽  
Yuanfeng Lan ◽  
Joeri Van Mierlo ◽  
Omar Hegazy
Keyword(s):  
Integrated Design ◽  
Optimization Method ◽  
Input Current ◽  
Optimized Design ◽  
Multiple Sources ◽  
Weight Losses ◽  
Multi Objective Genetic Algorithm ◽  
Reduce Development Time ◽  
Bandgap Semiconductors ◽  
Current Ripples

DC/DC Multiport Converters (MPC) are gaining interest in the hybrid electric drivetrains (i.e., vehicles or machines), where multiple sources are combined to enhance their capabilities and performances in terms of efficiency, integrated design and reliability. This hybridization will lead to more complexity and high development/design time. Therefore, a proper design approach is needed to optimize the design of the MPC as well as its performance and to reduce development time. In this research article, a new design methodology based on a Multi-Objective Genetic Algorithm (MOGA) for non-isolated interleaved MPCs is developed to minimize the weight, losses and input current ripples that have a significant impact on the lifetime of the energy sources. The inductor parameters obtained from the optimization framework is verified by the Finite Element Method (FEM) COMSOL software, which shows that inductor weight of optimized design is lower than that of the conventional design. The comparison of input current ripples and losses distribution between optimized and conventional designs are also analyzed in detailed, which validates the perspective of the proposed optimization method, taking into account emerging technologies such as wide bandgap semiconductors (SiC, GaN).

A Novel Quasi-Z-Source Inverter Topology With Special Coupled Inductors for Input Current Ripples Cancellation

2016 ◽  
Vol 31 (3) ◽  
pp. 2409-2416 ◽  
Author(s):  
Alexandre Battiston ◽  
El-Hadj Miliani ◽  
Serge Pierfederici ◽  
Farid Meibody-Tabar
Keyword(s):  
Input Current ◽  
Coupled Inductors ◽  
Inverter Topology ◽  
Current Ripples
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