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 +3 more sources
A new neutral-point voltage balance modulation strategy for three-level converters
机车电传动Three-level converters have been widely used in high-power rail transit applications due to their advantages. However, they also have an inherent problem of neutral-point voltage imbalance. To address this issue in neutral point clamped (NPC) converters,
ZHANG Hu +3 more
doaj +2 more sources
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
A strategy of neutral-point potential balance control and common-mode voltage suppressio
Gong-kuang zidonghua, 2014 For problems that there are common-mode voltage, over voltage and neutral-point potential imbalance simultaneously in power supply of inverter to motor through long cable, generation mechanisms of common-mode voltage and over voltage were analyzed as ...
WANG Kezhi +5 more
doaj +1 more source
Power quality improvement using dynamic voltage restorer in electrical distribution system: an overview [PDF]
, 2020 This paper represents a review of the dynamic voltage restorer for power quality improvement in the electrical distribution system. Over the past 50 years, issues concerning power quality have steadily increased, to prevent the effect of the voltage ...
Ali Basim Mohammed +6 more
core +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
Seven Level T-Type Switched Capacitor Inverter Topology for PV Applications
IEEE Access, 2021 The conventional neutral point clamped (NPC) multilevel inverter topology needs voltage balancing circuits to balance the dc-link capacitor, the number of component count is high and output voltage is half of the input voltage which increase the size of ...
Saeed Alyami +4 more
doaj +1 more source
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 +4 more
doaj +1 more source
Energies, 2018 In order to solve the neutral-point voltage unbalancing problem for neutral-point clamped (NPC) three-level inverters under non-ideal grid conditions, a novel zero-sequence component injection method for modulation signals was proposed in this paper ...
Jian Guo Lyu +3 more
doaj +1 more source
Neutral-point Voltage Control of Three-level NPC Inverter for Three-phase APF based on Zero-sequence Voltage Injection [PDF]
, 2019 © 2019 IEEE. Active Power Filters (APF) have already adopted the three-level inverter topology in medium-voltage and high-power applications for solving power-quality problems.
Asif Khan +9 more
core +1 more source