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An Active Virtual Space Vector Modulation Scheme for Three‐Level Neutral‐Point‐Clamped Converters
IEEJ Transactions on Electrical and Electronic EngineeringThe performance of neutral‐point‐clamped (NPC) converters is subject to the regulation of neutral point balance. In the literature, researchers have addressed two main modulation methods: the active space vector PWM (SVPWM) technique and the virtual SVPWM (VSVPWM) method.
Zhen Huang +3 more
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Applied Mechanics and Materials, 2014
In This paper, a direct torque control (DTC) method for bearingless permanent magnet synchronous motor (BPMSM) based on three-level neutral-point clamped (NPC) inverter is described. Through the analysis of virtual space vector modulation, an independent control strategy is adopted into the suspension winding control and a flux linkage error vector SVM-
Yu Xin Sun +2 more
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In This paper, a direct torque control (DTC) method for bearingless permanent magnet synchronous motor (BPMSM) based on three-level neutral-point clamped (NPC) inverter is described. Through the analysis of virtual space vector modulation, an independent control strategy is adopted into the suspension winding control and a flux linkage error vector SVM-
Yu Xin Sun +2 more
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2016 IEEE 11th Conference on Industrial Electronics and Applications (ICIEA), 2016
A new modulation method is proposed to solve the unbalancing problem of neutral-point potential in the DC side in three-level (3L) three-phase neutral-point-clamped (NPC) voltage source inverters. Based on properties of current balancing of three phases and redundant short vectors, different short vectors have different time distribution factors, which
Min Song +5 more
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A new modulation method is proposed to solve the unbalancing problem of neutral-point potential in the DC side in three-level (3L) three-phase neutral-point-clamped (NPC) voltage source inverters. Based on properties of current balancing of three phases and redundant short vectors, different short vectors have different time distribution factors, which
Min Song +5 more
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IEEE Transactions on Power Electronics, 2018
Neutral-point (NP) voltage imbalance is an inherent problem of three-level neutral-point clamped (NPC) converter. To solve this problem, an improved virtual space vector pulse width modulation (VSVPWM) is proposed in this paper. A new repartitioning of the space vector sectors is proposed for three-level NPC converter by considering the amplitude ...
Chao-Qun Xiang +5 more
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Neutral-point (NP) voltage imbalance is an inherent problem of three-level neutral-point clamped (NPC) converter. To solve this problem, an improved virtual space vector pulse width modulation (VSVPWM) is proposed in this paper. A new repartitioning of the space vector sectors is proposed for three-level NPC converter by considering the amplitude ...
Chao-Qun Xiang +5 more
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Unconditional Control of NPC Inverter by a Modified Virtual Space Vector Modulation
2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC), 2022Mohammad Haei +2 more
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IEEE Transactions on Industrial Electronics
Multiport dc-ac converter has gained attention due to its power density and low cost. However, in virtual space vector pulse width modulation (VSVPWM) where common-mode voltage (CMV) reduction and power control are considered, there are multiple switching actions in a period, which can be called multiswitch-VSVPWM (MS-VSVPWM).
Zhaonan Li +5 more
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Multiport dc-ac converter has gained attention due to its power density and low cost. However, in virtual space vector pulse width modulation (VSVPWM) where common-mode voltage (CMV) reduction and power control are considered, there are multiple switching actions in a period, which can be called multiswitch-VSVPWM (MS-VSVPWM).
Zhaonan Li +5 more
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IEEE Journal of Emerging and Selected Topics in Power Electronics, 2023
Zhihuang Ruan +4 more
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Zhihuang Ruan +4 more
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IECON 2013 - 39th Annual Conference of the IEEE Industrial Electronics Society, 2013
The paper puts forth a novel idea for the computation of Nearest Three Virtual Space Vector Pulse Width Modulation for the three level NPC converters. The computations are based on the concept of final element shape function widely used in the domain of finite element analysis.
Pawel Szczepankowski, Janusz Nieznanski
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The paper puts forth a novel idea for the computation of Nearest Three Virtual Space Vector Pulse Width Modulation for the three level NPC converters. The computations are based on the concept of final element shape function widely used in the domain of finite element analysis.
Pawel Szczepankowski, Janusz Nieznanski
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TENCON 2017 - 2017 IEEE Region 10 Conference, 2017
This paper explore the odevity coordinate to conduct virtual space vector modulation for the neutral point clamped inverter. It deduced the mathematical expressions of the duty ratio of six sectors and presented a unified space vector sequence. This modulation simplifies the calculation and eliminates the difference between sectors of virtual space ...
Huang Huixian +3 more
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This paper explore the odevity coordinate to conduct virtual space vector modulation for the neutral point clamped inverter. It deduced the mathematical expressions of the duty ratio of six sectors and presented a unified space vector sequence. This modulation simplifies the calculation and eliminates the difference between sectors of virtual space ...
Huang Huixian +3 more
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