Results 1 to 10 of about 231,805 (108)

Influence of Digital Delay on the Zero-Sequence Voltage Injection Neutral-Point Potential Balance Algorithm for Three-Level NPC Inverters and Its Compensation Method

open access: yesIEEE Access, 2019
Three-level neutral-point-clamped (NPC) inverters need to ensure the balance of the neutral-point (NP) potential during operation. The zero-sequence voltage injection balance algorithms based on the carrier-based pulse width modulation (CBPWM) have been ...
Xingda Zhou, Shuai Lu
doaj   +3 more sources

A neutral-point voltage balance control method for 3L-NPC converters

open access: yesFrontiers in Energy Research
The inherent problem of neutral-point potential imbalance in three-level neutral-point-clamped (3L-NPC) converters increases the risk of overvoltage in switching devices, causes increased output harmonic content, and seriously affects the performance and
Jun Wang
doaj   +3 more sources

Study on Maximum Power Tracking Strategy of 10 MW Medium Voltage Six-Phase Direct-Drive Permanent Magnet Wind Turbine

open access: yes发电技术, 2022
In order to maximize the grid-connected power of high-power offshore wind turbines, a maximum power tracking strategy suitable for medium voltage six-phase permanent magnet synchronous generator (MVSPMSG) was proposed in the paper based on the use of ...
ZHAO Haichuan   +5 more
doaj   +1 more source

Harmonic Analysis and Neutral-Point Potential Control of Interleaved Parallel Three-Level Inverters for Flywheel Energy Storage System

open access: yesFrontiers in Energy Research, 2022
Flywheel energy storage system is a popular energy storage technology, in which inverters are the center of electrical energy conversion, directly affecting the power capacity.
Zhongrui Li   +4 more
doaj   +1 more source

A Novel SVPWM Algorithm Considering Neutral-Point Potential Balancing for Three-Level NPC Inverter [PDF]

open access: yesElectronics, 2016
For three-level inverter, complexity of control strategy and neutral-point potential imbalance problem of DC side is the bottleneck restricting its application.
Chen Yongchao, Li Yanda, Zhao Ling
doaj   +1 more source

Neutral-Point Voltage Balancing Method for Three-Phase Three-Level Dual-Active-Bridge Converters

open access: yesEnergies, 2022
Three-phase three-level dual-active-bridge (3L-DAB3) converters are a potential topology for high-voltage and high-power applications. Neutral-point voltage balancing is a complex and important issue for three-level (3L) circuits.
Xinmi Wu, Yu Zhang, Jiawen Yang
doaj   +1 more source

Research on three-phase four-wire NPC converter for Tokamak low-frequency resonance suppressor

open access: yesEnergy 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

open access: yesSystems 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

Virtual Vector-Based Direct Power Control of a Three-Phase Coupled Inductor-Based Bipolar-Output Active Rectifier for More Electric Aircraft

open access: yesEnergies, 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
doaj   +1 more source

A simplified space vector pulse width modulation method for a three‐level four‐leg inverter considering the neutral point potential balance

open access: yesIET 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

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