Results 31 to 40 of about 7,548,261 (298)

Quasi-Z-source Inverter with Coupled Inductor [PDF]

A novel quasi-Z-source inverter with Coupled Inductor technique is proposed in this paper. The boost ability of the proposed topology is enhanced compared to classic Zsource/quasi-Z-source topologies.
Elgendy MA, Muhammad M, Armstrong M, Zhao Z   +3 more
core   +2 more sources

A wavelet modulation method for a quasi-Z-source inverter

工程科学学报, 2017
A wavelet modulation strategy applied to a quasi-Z-source inverter was proposed. The regulating range of the shootthrough duty ratio could be increased by changing the locations of the sampling points set using traditional wavelet-modulation.
LI Zhi-jun, ZHANG Jia-wei, WANG Juan, XI Wen-xia, ZHANG Zi-kun, ZHANG Chuan-bo   +5 more
doaj   +1 more source

Feasibility Study of Interleaving Approach for Quasi-Z-Source Inverter

, 2020
This paper presents a comprehensive feasibility study of an interleaving approach for a quasi-Z-source inverter. The state-of-the-art approach revealed that an interleaving approach is often used to improve the efficiency and power density that can ...
Dmitri Vinnikov, Oleksandr Husev, Artem Fesenko, Serhii Stepenko, Oleksandr Matiushkin   +4 more
core   +1 more source

Voltage Waveform and Voltage Boost Ratio of Quasi Z Source DC Converters

IEEE Access
In order to optimize the voltage waveforms of quasi Z source converters and investigate their effects on voltage boost ratio, the LTspice software is used to conduct a simulation study on quasi Z source converters after theoretical analysis.
Sheng Qu
doaj   +1 more source

A model predictive control strategy based on energy storage grid‐connected quasi‐z‐source inverters

IET Generation, Transmission & Distribution, 2022
The battery energy stored quasi‐Z‐source (BES‐qZS) based photovoltaic (PV) power generation system combines advantages of the qZS inverter and the battery energy storage (BES) system.
Lixiong Li, Tongguang Yang, Yueyang Yuan, Zhenhua Cai   +3 more
doaj   +1 more source

Interleaved Single-Phase Quasi-Switched Boost and Active Quasi-Z-Source Inverter

, 2020
In this paper two interleaved topologies with modified modulation techniques are proposed for single-phase application. Two modified modulation techniques based on maximum boost control technique and quasi-sinusoidal modulation strategy are proposed for ...
Stepenko, Serhii, Sanjeevikumar Padmanaban, Soundarrajan, A., Oleksandr Bondarenko, Bondarenko, Oleksandr, Barath, J. G.Nataraj, Serhii Stepenko, Padmanaban, Sanjeevikumar, J G Nataraj Barath, Prystupa, Anatoliy, A Soundarrajan, Anatoliy Prystupa   +11 more
core   +1 more source

THD Reduction of Inverters in Photovoltaic Power Systems

Mìkrosistemi, Elektronìka ta Akustika, 2020
Photovoltaic power systems are quite common in modern consumer power systems. Alongside with the power sources, converters for photovoltaic energy systems made their own evolution path that was defined by two main requirements that have to be fulfilled ...
Ihor Serhiiovych Fedin, Tetiana Oleksandrivna Tereshchenko, Yuliia Serhiivna Yamnenko   +2 more
doaj   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

Advanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil, Edward D. McCarthy, Parvez Alam   +2 more
wiley   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Switched Z-Source/Quasi-Z-Source DC-DC Converters With Reduced Passive Components for Photovoltaic Systems

IEEE Access, 2019
In this paper, switched Z-source/quasi-Z-source dc-dc converters (SZSC/SQZSCs) are proposed for the photovoltaic (PV) grid-connected power system, where the high step-up dc-dc converters are required to boost the low voltage to high voltage.
Junfeng Liu, Jialei Wu, Jianyong Qiu, Jun Zeng   +3 more
doaj   +1 more source