Results 21 to 30 of about 6,652 (252)

Virtual flux vector reconstruction of a PWM rectifier

工程科学学报, 2016
The virtual flux space vector of a pulse width modulation (PWM) rectifier usually can be calculated by integrating the grid voltage vector. In practice, the pure integral part is replaced with a first-order low-pass filter (FOLP) to counteract the DC ...
CHEN Tie-zhu, ZHANG Yong-jun, XIAO Xiong, LUO Ling-bo   +3 more
doaj   +1 more source

Study on the space vector modulation strategy of matrix converter under abnormal input condition

Alexandria Engineering Journal, 2022
Since the matrix converter (MC) has no intermediate DC energy storage link, any disturbance at the input will affect the output. To guarantee the safe and stable operation of MC system, a feed-forward compensation (FFC) strategy for MC operation in ...
Delu Li, Xianming Deng, Changyi Li, Xiao Zhang, En Fang   +4 more
doaj   +1 more source

Direct power control in pulse-width modulation rectifier based on virtual flux estimation

Advances in Mechanical Engineering, 2017
Pulse-width modulation rectifier plays an important role in the field of electric energy conversion. It has many advantages such as the grid side current sinusoidal, bidirectional energy flow, and unit power factor.
Bo Fan, Xian-Bo Wang, Zhi-Xin Yang, Lu Song, Shu-Zhong Song   +4 more
doaj   +1 more source

A Parallel Topology Based Power-Stage PMSM Emulator With Accurate Ripple Current Reproduced

IEEE Access, 2022
As a power hardware-in-the-loop (PHIL) technology, the power-stage motor emulator (ME) can be employed for the port characteristics emulation of motors.
Yiting Li, Wei Wang, Puyi Wang
doaj   +1 more source

A Carrier-Based Modulation With Planned Zero Sequence Voltage Injection to Control Neutral Point Voltage for Three-Level Inverter

IEEE Access, 2020
In this paper, a carrier-based modulation strategy with planned zero sequence voltage (ZSV) injection for T-type three-level inverter (TLI) is proposed to control neutral point (NP) voltage, which is simple to be implemented.
Jinping Wang, Zaiyi Gui, Peixia Wang, Juncan Wang, Weidong Jiang   +4 more
doaj   +1 more source

Model Predictive Control With Space Vector Modulation Based on a Voltage Angle for Driving Open-End Winding IPMSM

IEEE Access
This paper proposes a model predictive control with space vector modulation (MPC-SVM) method that is based on using a voltage angle to reduce ripple components in open-end winding interior permanent magnet synchronous motor (OEW-IPMSM).
Hyung-Woo Lee, Tae-Yong Yoon, Kyo-Beum Lee   +2 more
doaj   +1 more source

Space Vector Modulation Techniques for Common-Mode Voltage Reduction in Three-Phase Transformerless Split-Source Inverters

Eletrônica de Potência, 2020
Photovoltaic (PV) systems with low input voltage usually employ an input boost converter and an output inverter. Regarding to this issue, the split-source inverter (SSI) provides a single power conversion stage which aggregates boost capability with low
Diego Brum Chaves, Felipe Bovolini Grigoletto   +1 more
doaj   +1 more source

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

Advanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll, Ivan Pinto‐Huguet, Enzo Rotunno, Thomas Galvani, Catalina Coll, Payam Habibzadeh Kavkani, Maria Chiara Spadaro, Yann‐Michel Niquet, Martin Børstad Eriksen, Sara Martí‐Sánchez, Georgios Katsaros, Giordano Scappucci, Peter Krogstrup, Giovanni Isella, Andreu Cabot, Gonzalo Merino, Pablo Ordejón, Stephan Roche, Vincenzo Grillo, Jordi Arbiol   +19 more
wiley   +1 more source

Unified Strategy for Fault-Tolerant Operation of MMC with Multiple SMs Failure Based on SMs Grouping Management

Energies, 2022
Modular multilevel converter (MMC) is distinguished by its modularity. In order to improve its reliability and avoid unscheduled maintenance, it requires the MMC to continue operating even though some of its submodules (SMs) have failed. In this paper, a
Zhihong Bai, Yifei Li
doaj   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source