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2013 IEEE International Symposium on Industrial Electronics, 2013
This paper investigates two conflictive issues of common-mode (CM) voltage reduction and neutral point (NP) voltage balancing in a three-level neutral-point-clamped (NPC) converter. The amplitude of NP voltage variation under CM voltage mitigation scheme has been derived analytically.
Yuan, Xibo, Yon, Jason M, Mellor, Phil
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This paper investigates two conflictive issues of common-mode (CM) voltage reduction and neutral point (NP) voltage balancing in a three-level neutral-point-clamped (NPC) converter. The amplitude of NP voltage variation under CM voltage mitigation scheme has been derived analytically.
Yuan, Xibo, Yon, Jason M, Mellor, Phil
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2016 11th International Conference on Industrial and Information Systems (ICIIS), 2016
The Neutral point clamped (NPC) inverter has unbalancing problems of neutral point voltage and DC link capacitors voltages, generally dc link capacitor voltage unbalance leads to neutral point voltage unbalance. In this paper neutral point voltage is balanced using sine PWM associated with phase shift technique.
K. Anuradha, Gandla Radha Krishna
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The Neutral point clamped (NPC) inverter has unbalancing problems of neutral point voltage and DC link capacitors voltages, generally dc link capacitor voltage unbalance leads to neutral point voltage unbalance. In this paper neutral point voltage is balanced using sine PWM associated with phase shift technique.
K. Anuradha, Gandla Radha Krishna
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Analysis of Neutral-Point Voltage Balancing in Three-Ports Active Neutral-Point-Clamped Converter
2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC), 2019This paper investigates the neutral-point (NP) voltage balancing problem from the perspective of the space vector modulation for different operating conditions of the recently proposed Three-ports Active Neutral-Point-Clamped (ANPC-3P) topology, which can integrate one energy storage system per inverter leg.
Kaio Vinicius Vilera +2 more
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Control of a four-level active neutral point clamped converter with neutral point voltage balance
2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia), 2016In this paper, a carrier-based modulation method with optimal zero-sequence signal injection has been devised to modulate the converter and regulate the DC-link neutral points' voltages of a four-level active neutral point clamped (ANPC) converter. With the proposed control strategy, the two neutral points' voltages can be well controlled with a back ...
Jin, Bosen, Yuan, Xibo
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APEC '99. Fourteenth Annual Applied Power Electronics Conference and Exposition. 1999 Conference Proceedings (Cat. No.99CH36285), 1999
This paper explores the fundamental limitations of neutral-point voltage balancing problem for different loading conditions of three level voltage source inverters. A new model in DQ coordinate frame utilizing current switching functions is developed, as a means to investigate theoretical limitations and lend more intuitive insight into the problem ...
N. Celanovic, D. Boroyevich
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This paper explores the fundamental limitations of neutral-point voltage balancing problem for different loading conditions of three level voltage source inverters. A new model in DQ coordinate frame utilizing current switching functions is developed, as a means to investigate theoretical limitations and lend more intuitive insight into the problem ...
N. Celanovic, D. Boroyevich
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Capacitor Voltage Balancing for Neutral Point Clamped Dual Active Bridge Converters
IEEE Transactions on Power Electronics, 2020A capacitor voltage balancing method is proposed for a full-bridge neutral point diode clamped (NPC) dual-active bridge (DAB) converter. In existing literature, capacitor voltage balancing is achieved by actively selecting between the small voltage vectors, i.e., connecting either the upper or the lower capacitor on the dc bus to the transformer ...
M. A. Awal +6 more
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2007 International Conference on Electrical Machines and Systems (ICEMS), 2007
This paper investigates the neutral point voltage balancing problem in three-level NPC PWM VSI theoretically. Current vector is introduced to model the disturbance of NP voltage due to middle voltage vectors and small voltage vectors. The ripple of NP voltage is consisting of two parts, one is low-frequency and the other is high frequency.
null Weidong Jiang +3 more
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This paper investigates the neutral point voltage balancing problem in three-level NPC PWM VSI theoretically. Current vector is introduced to model the disturbance of NP voltage due to middle voltage vectors and small voltage vectors. The ripple of NP voltage is consisting of two parts, one is low-frequency and the other is high frequency.
null Weidong Jiang +3 more
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IEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02, 2003
In this paper, the evolution and the control options of the neutral point potential in NPC inverters with SVPWM modulation are analysed. In this analysis, the different components that can be found in the phase current are taken into account: fundamental, DC current and harmonics.
O. Alonso +4 more
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In this paper, the evolution and the control options of the neutral point potential in NPC inverters with SVPWM modulation are analysed. In this analysis, the different components that can be found in the phase current are taken into account: fundamental, DC current and harmonics.
O. Alonso +4 more
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IEEE Transactions on Industrial Electronics, 2019
According to different clamping methods, nine modes (C_MODE1-9) of the traditional discontinuous pulsewidth modulation (DPWM) for neutral-point-clamped three-level converter have been revealed. Since traditional DPWM cannot balance neutral point (NP) voltage under the full range of modulation index (MI) and power factor (PF), two extended modes (E ...
Kewei Chen, Weidong Jiang, Peixia Wang
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According to different clamping methods, nine modes (C_MODE1-9) of the traditional discontinuous pulsewidth modulation (DPWM) for neutral-point-clamped three-level converter have been revealed. Since traditional DPWM cannot balance neutral point (NP) voltage under the full range of modulation index (MI) and power factor (PF), two extended modes (E ...
Kewei Chen, Weidong Jiang, Peixia Wang
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Neutral-point voltage balance control and oscillation suppression for VIENNA rectifier
2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia), 2017In view of a three-phase/level boost rectifier, the performance of VIENNA rectifier is affected by the neutral-point (NP) voltage unbalance and oscillation. A novel strategy of zero-sequence component injection to balance the neutral-point voltage and suppress oscillation for VIENNA rectifier is proposed in this paper.
Jiajun Liu +4 more
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