Results 1 to 10 of about 5,808 (117)

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

Energies, 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   +3 more sources

Multi-source Powered Mining Truck Three-level DC/DC Converter and Its Energy Management Control Strategy

Kongzhi Yu Xinxi Jishu, 2023
Multi-source powered mining trucks are expected with broad market prospects, due to the advantages in energy conservation, environmental protection, flexibility and efficiency.
ZHOU Zhenbang, WANG Yue, FU Jianguo, LIANG Xifan, TANG Xunlu, FU Gang   +5 more
doaj   +3 more sources

A Modified Neutral-point Voltage Control Strategy for Three-level Inverters Based on Decomposition of Space Vector Diagram

CES Transactions on Electrical Machines and Systems, 2022
Capacitor voltage imbalance is a significant problem for three-level inverters. Due to the mid-point modulation of these inverter topologies, the neutral point potential moves up or down depending on the neutral point current direction creating ...
Dereje Woldegiorgis, H. Alan Mantooth
doaj   +1 more source

Compensation-Voltage-Injection-Based Neutral-Point Voltage Fluctuation Suppression Method for NPC Converters

Energies, 2023
Three-level neutral-point clamped (NPC) inverters are widely used in the new energy power generation, motor drive, and many other occasions. However, the neutral-point voltage imbalance of an NPC inverter will affect the output of the inverter system ...
Guo Chen, Chunyang Gong, Jun Bao, Lihua Zhu, Zhixin Wang   +4 more
doaj   +1 more source

An Advanced Modulation Technique Featuring Neutral Point Voltage Ripple Suppression of Three-Level Converters in High-Speed Drives

IEEE Access, 2021
This paper introduces an advanced space vector modulation technique for three-level neutral-point-clamped (3L-NPC) converters. The studied 3L-NPC converters within aircraft electric starter generator (ESG) systems normally operate at high modulation ...
Chen Li, Tao Yang, Zhen Huang, Seang Shen Yeoh, Serhiy Bozhko, Patrick Wheeler   +5 more
doaj   +1 more source

Analytical Modeling of Neutral Point Current in T-type Three-level PWM Converter

Energies, 2020
Since a T-type three-level PWM converter has several intrinsic advantages, it has been researched for various applications such as grid-connected converter systems.
Kui-Jun Lee
doaj   +1 more source

Capacitor Voltage Balancing Strategy of NPC Three-level Dual-active Bridge Converter Based on Redundant Vector

Kongzhi Yu Xinxi Jishu, 2023
The neutral point clamped (NPC) three-level dual-active bridge (DAB) converter can be applied at higher voltage levels and in a wider operating range than the traditional DAB converter, and therefore it is more promising in future applications.
LIU Chao, LI Chi
doaj   +3 more sources

Virtual Vector-Based FCS-MPC for NPC Three-Level Grid-Tied Inverter Without Weighting Factor of Neutral-Point Voltage Balancing

IEEE Access, 2022
The neutral-point clamped (NPC) inverter is widely used in energy conversion, but the unbalance of neutral-point voltage (NPV) will lead to imprecise control and the decline of power quality.
Nan Jin, Dongren Dai, Huan Xie, Jie Wu, Leilei Guo   +4 more
doaj   +1 more source

A Hysteresis Space Vector PWM for PV Tied Z-Source NPC-MLI With DC-Link Neutral Point Balancing

IEEE Access, 2021
The Photo-voltaic (PV) tied Z-source Neutral-point clamped multilevel inverter (Z-NPC-MLI) is used in solar grid connected applications due to its single stage conversion and better performance.
Suresh Kumar Annam, R. K. Pongiannan, N. Yadaiah   +2 more
doaj   +1 more source

Common-Mode Resonance Damping and DC Voltage Balancing Strategy for LCCL-Filtered Three-Level Photovoltaic Grid-Tied Inverters

IEEE Access, 2020
The leakage current caused by common-mode (CM) voltage is a critical issue in transformerless three-level photovoltaic (PV) inverters, which can increase the output current distortion, bring extra power losses, aggravate the electromagnetic interference,
Rende Zhao, Cun Wang, Qingzeng Yan, Hailiang Xu, Frede Blaabjerg   +4 more
doaj   +1 more source