Results 11 to 20 of about 14,379,955 (286)
A Study on Neutral-Point Potential in Three-Level NPC Converters
Energies, 2019 This paper proposes an accurate mathematical model of three-level neutral-point-clamped (NPC) converters that can accurately represent the midpoint potential drift of the DC link with parameter perturbation.
Maosong Zhang +6 more
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Comparison between two VSC-HVDC transmission systems technologies : modular and neutral point clamped multilevel converter [PDF]
, 2009 The paper presents a detail comparison between two voltage source converter high voltage dc transmission systems, the first is based on neutral point-clamped (also known as HVDC-Light) and the second is based on innovative modular multilevel converter ...
Anaya-Lara, O. +5 more
core +3 more sources
Research on three-phase four-wire NPC converter for Tokamak low-frequency resonance suppressor
Energy Reports, 2021 During the operation of Tokamak power system, a large number of low frequency harmonic currents with complex spectrum will be generated. Low-frequency resonance suppressor is an effective solution to suppress this low-frequency harmonic currents. The low-
Xianshun Shen +9 more
doaj +1 more source
The improvement of model predictive control based on three-level three-phase inverter
Systems Science & Control Engineering, 2021 To improve the dynamic response of the inverter, the conventional proportional–integral controller and the modulation part are substituted by the finite-control step model predictive control (FCS-MPC) strategy.
Liyang Zhu, Xiao Zhao
doaj +1 more source
Energies, 2023 Direct power control (DPC) has gained increasing attention in recent years as a simple and efficient control strategy for pulse width modulation (PWM) rectifiers.
Yajun Zhao, Wenxin Huang, Feifei Bu
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IET Power Electronics, 2023 This paper presents a simple three‐dimensional space vector modulation method in ghγ coordinates for a three‐level four‐leg neutral‐point‐clamped inverter.
Zhi Zhang +5 more
doaj +1 more source
A Novel Control Method of Three-Level Converter Neutral-Point Potential Balance [PDF]
Advances in Computer Science Research, 2015 With the neutral-point-clamped (NPC) converter widely applied to direct-drive wind energy generation system, wheather to guarantee the dc-link neutral-point potential (NPP) balance has a crucial influence on the system. Research on gridside NPC three-level converter, firstly, this paper established NPP fluctuation mathematical model, analyzed the ...
Z.N Guo, B. Ben, C.J Zhang, X.H Chai
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Machines, 2022 The study sets a baseline for split DC link capacitance values and voltage set points in three-phase three-level AC/DC (or DC/AC) converters operating with unity power factor.
Yarden Siton +3 more
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Particle acceleration in the presence of weak turbulence at an X-type neutral point [PDF]
, 2012 We simulate the likely noisy situation near a reconnection region by superposing many 2D linear reconnection eigenmodes. The superposition of modes on the steady state X-type magnetic field creates multiple X- and O-type neutral points close to the ...
Petkaki, P. +4 more
core +1 more source
Actuators, 2023 In the field-weakening region, the traditional field-weakening method for induction motor drives based on model predictive control (MPC) is to take a no-load operation as the premise and adjust the flux reference in the cost function proportional to the ...
Jingtao Huang +3 more
doaj +1 more source