Operating Principle and Performance Optimization of a Three-Level NPC Dual-Active-Bridge DC-DC Converter [PDF]
, 2015 © 1982-2012 IEEE. Aiming to improve the performance features of conventional two-level dual-active-bridge (DAB) converters, this paper presents a three-level neutral-point-clamped (NPC) DAB dc-dc converter.
Bordonau Farrerons, José +3 more
core +2 more sources
Derivation of Voltage Source Multilevel Converter Topologies [PDF]
, 2017 Multilevel converters have gained popularity in both medium voltage and low voltage applications. To find out the connections between various multilevel voltage-source converter topologies and to reveal how to obtain new topologies, this paper has ...
Yuan, Xibo
core +2 more sources
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
doaj +1 more source
Modified Topology and Modulation Technique for Z-Source Neutral-Point Clamped Inverter
Power Electronics and Drives, 2022 The impedance network makes it possible to increase and decrease the voltage, which is not available in normal inverters (voltage and current sources).This paper presents a modified topology and modulation technique for a three-phase Modified Z-Source ...
Akbari Ehsan, Zishan Farhad
doaj +1 more source
IEEE transactions on industry applications, 2020 This article presents an optimal carrier-based voltage balancing scheme for three-phase three-level converters. The proposed scheme utilizes two available degrees of freedom, i.e., zero-sequence signal injection and virtual zero-level modulation (VZM ...
Jun Wang +3 more
semanticscholar +1 more source
Fast optimum-predictive control and capacitor voltage balancing strategy for bipolar back-to-back NPC converters in high-voltage direct current transmission systems [PDF]
, 2011 Multilevel power converters have been introduced as the solution for high-power high-voltage switching applications where they have well-known advantages.
Chaves, Miguel +4 more
core +1 more source
A Novel Neutral Point Voltage Control Strategy for Three-Level NPC APF Based on SVPWM
MATEC Web of Conferences, 2015 The unbalance of the neutral point voltage is an inherent problem of three-level neutral-point-clamped (NPC) Active Power Filter (APF); this paper analyzes the causes of unbalanced neutral point voltage and studies the reason of the unbalance of the ...
Yao Xiaolong +3 more
doaj +1 more source
Modified Predictive Control Method of Three-Level Simplified Neutral Point Clamped Inverter for Common-Mode Voltage Reduction and Neutral-Point Voltage Balance [PDF]
IEEE Access, 2019 Three-level simplified neutral point clamped (NPC) inverters are studied due to lower harmonics and fewer switching devices. Nevertheless, this topology needs to obtain neutral point (NP) voltage balance through either control or modulation methods.
Fei Wang, Zhijun Li, Xiangrong Tong
openaire +2 more sources
A Novel SVPWM Algorithm Considering Neutral-Point Potential Balancing for Three-Level NPC Inverter [PDF]
Electronics, 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
Direct control strategy for a four-level three-phase flying-capacitor inverter [PDF]
, 2010 A direct predictive control strategy is proposed for a three-phase four-level flying-capacitor (FC) inverter in this paper. The balancing of the FC voltages, a challenge in applications with small capacitors and low switching frequencies, is done without
Defaÿ, François +2 more
core +1 more source