Results 31 to 40 of about 5,969,025 (144)

A 3D-Space Vector Modulation Algorithm for Three Phase Four Wire Neutral Point Clamped Inverter Systems as Power Quality Compensator

Energies, 2017
A Unified Power Quality Conditioner (UPQC) is designed using a Neutral Point Clamped (NPC) multilevel inverter to improve the power quality. When designed for high/medium voltage and power applications, the voltage stress across the switches and harmonic
Palanisamy Ramasamy, Vijayakumar Krishnasamy   +1 more
doaj   +1 more source

DC link capacitor voltage balancing in three level neutral point clamped inverter [PDF]

, 2012
Multilevel inverters are becoming increasingly popular for high and medium power applications. The diode clamped multilevel inverter (DCMLI) is an attractive high voltage multilevel inverter due to its robustness.
Mekhilef, Saad, Khudhur, H.I., Belkamel, H.   +2 more
core   +2 more sources

Three-Phase Three-Level Neutral Point Clamped Rectifier with Predictive Control Method without Employing Weighting Factor

Applied Sciences, 2020
A predictive control method using injected offset voltage to achieve neutral point (NP) voltage balance of three-phase three-level neutral point clamped (NP) rectifiers, without employing a weighting factor, is proposed in this study.
Eun-Su Jun, Minh Hoang Nguyen, Sangshin Kwak   +2 more
doaj   +1 more source

A Family of 5-Level Boost-Active Neutral-Point-Clamped (5L-BANPC) Inverters with Full DC-Link Voltage Utilization Designed Using Half-Bridges

Energies
Conventional 5-level active neutral-point-clamped (5L-ANPC) topology and state-of-the-art 5-level hybrid active neutral-point-clamped (5L-HANPC) topology are popular for inverter applications. However, their dc-link voltage utilization is limited to only
Sze Sing Lee
doaj   +1 more source

Design of Three-Level NPC AC/DC Bidirectional Converter Using Model Predictive Controller for DC Bus Voltage Stability of Subway

Engineering Proceedings, 2023
In this paper, the model predictive control technique is proposed to control the voltage balancing for the subway train 1500 V DC system for variable loads.
Mohsin Ihsan, Shunfeng Yang
doaj   +1 more source

Design of neutral-point voltage controller of a three-level NPC inverter with small DC-link capacitors

, 2013
A neutral-point-clamped three-level inverter with small dc-link capacitors is presented in this paper. The inverter requires zero average neutral-point current for stable neutral–point voltage.
Munk-Nielsen, Stig, Busquets Monge, Sergio, Maheshwari, RamKrishan   +2 more
core   +2 more sources

A simplified neutral-point voltage balancing of a three-level NPC inverter

Tạp chí Khoa học và Công nghệ
This paper presents an enhanced space vector modulation strategy for three-level neutral-point-clamped inverters, aiming to balance the neutral point voltage.
Van-Quang-Binh Ngo, Nguyen Quang Huy, Nguyen Anh Tuan, Nguyen Van Vi, Phan Thanh Van, Nguyen Khanh Quang, Kim-Anh Nguyen   +6 more
doaj   +1 more source

Improved Deadbeat FC-MPC Based on the Discrete Space Vector Modulation Method with Efficient Computation for a Grid-Connected Three-Level Inverter System

Energies, 2019
The utilization of three-level T-type (3L T-type) inverters in finite set-model predictive control (FS-MPC) of grid-connected systems yielded good performance in terms of current ripples and total harmonic distortions. To further improve the system’
Ibrahim Mohd Alsofyani, Kyo-Beum Lee
doaj   +1 more source

Analysis of unbalanced clustered voltage and control strategy of clustered voltage balancing for cascaded H-bridge STATCOM

Journal of Modern Power Systems and Clean Energy, 2019
To explore the clustered voltage balancing mechanism of the cascaded H-bridge static synchronous compensator (STATCOM), this paper analyzes the causes of unbalanced clustered voltage. The negative-sequence current caused by the compensation of unbalanced
Yu Jin, Jianze Wang, Yiqi Liu, Xinagyu Sai, Yanchao Ji   +4 more
doaj   +1 more source

Optimal Voltage-Balancing Compensator in the Modulation of a Neutral-Point-Clamped Converter

, 2007
This paper presents an optimal voltage-balancing compensator for a particular type of modulation technique applied to the neutral-point-clamped converter. This modulation technique is able to completely eliminate low-frequency voltage oscillations in the
Pou, Josep, Jordi Zaragoza, Josep Pou, Salvador Ceballos, Carles Jaen, Jaen, Carles, Eider Robles, Robles, Eider, Zaragoza, Jordi, Ceballos, Salvador   +9 more
core   +1 more source