Results 11 to 20 of about 6,652 (252)
An Improved Varied Virtual-space-vector Modulation for Neutral-point-clamped Three-level Inverter
Journal of Physics: Conference Series, 2021 Abstract The problem of neutral-point potential balance is always an inherent problem of three-level inverters. In this paper, an improved varied virtual-space-vector modulation method is proposed to improve the neutral point potential balance capability of three-level inverters.
Guanqing Zhou +3 more
openaire +1 more source
IET Power Electronics, 2023 Balancing control of neutral‐point voltage (NPV) and reducing common‐mode voltage (CMV) are crucial for a three‐level neutral‐point‐clamped (NPC) inverter.
Zhuoxun Liu, Xiangguo Xu
doaj +1 more source
Multiple-Vector Model Predictive Control with Fuzzy Logic for PMSM Electric Drive Systems
Energies, 2021 This article presents a multiple-vector finite-control-set model predictive control (MV-FCS-MPC) scheme with fuzzy logic for permanent-magnet synchronous motors (PMSMs) used in electric drive systems.
Ibrahim Farouk Bouguenna +3 more
doaj +1 more source
Energies, 2015 In the research field of multilevel converters, three-level NPC (neutral-point-clamped) converters, which unfortunately may cause the deviation of the neutral-point voltage of DC-link capacitors, are widely discussed.
Shi Weng Gui +2 more
doaj +1 more source
Three-Phase Hybrid Converter With Simultaneous DC and AC Outputs
IEEE Access, 2023 A novel topology of three-phase hybrid converter (TP-HC) which can supply simultaneously both DC and AC loads is presented. This topology is obtained by adding three switches to T-type three-level inverter.
Rutian Wang, Xuedong Wu, Xiuyun Wang
doaj +1 more source
Power Factor Control Method Based on Virtual Capacitors for Three-Phase Matrix Rectifiers
IEEE Access, 2019 This paper proposes a novel input power factor control method based on a concept of virtual capacitors to provide unity input power factor for three-phase matrix rectifiers. The proposed algorithm introduces, at the input terminal of the matrix rectifier,
Jae-Chang Kim +2 more
doaj +1 more source
IEEE Access, 2021 Featured with the simple structure, V-clamp multilevel converter (VMC) shows good prospect in the high-voltage and high-power applications. But VMC is endangered by the deviation of dc-link capacitors voltage, especially under the high modulation index ...
Yao Xue +4 more
doaj +1 more source
Virtual Space Vector Pulse Width Modulation for Asymmetric T-Type Neutral Point Clamped 3-Level Inverter [PDF]
Mathematical Problems in Engineering, 2021 This paper proposes a novel 3-phase asymmetric 3-level T-type NPC inverter and studies its PWM performance using a virtual space vector pulse width modulation control strategy. Firstly, the mathematical model and characteristics of this economical topology are described.
Nam Xuan Doan, Nho Van Nguyen
openaire +1 more source
Influence of the stator current reconstruction method on direct torque control of induction motor drive in current sensor postfault operation [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2022 Modern induction motor (IM) drives with a higher degree of safety should be equipped with fault-tolerant control (FTC) solutions. Current sensor (CS) failures constitute a serious problem in systems using vector control strategies for IMs because these ...
Michal Adamczyk +1 more
doaj +1 more source
IEEE Access, 2020 The paper presents a novel approach to the Pulse Width Modulation (PWM) duty cycle computing for complex or irregular voltage vector arrangements in the two (2D) and three-dimensional (3D) Cartesian coordinate systems.
Pawel Szczepankowski +4 more
doaj +1 more source