Research on Neutral-point Balancing Control for Three-level NPC Inverter Based on Correlation between Carrier-based PWM and SVPWM

2006 ◽  
Author(s):  
Wenxiang Song ◽  
Guocheng Chen ◽  
Xiaoyu Ding ◽  
Mantang Shu
Keyword(s):  
Neutral Point ◽  
Balancing Control

DC bus balancing control techniques for the cascaded neutral point clamped modular converter

2016 ◽  
Author(s):  
Meng-jiang Tsai ◽  
Wei-lun Huang ◽  
Pei-yuan Chu ◽  
Hsin-chih Chen ◽  
Ping-heng Wu ◽  
...  
Keyword(s):  
Neutral Point ◽  
Control Techniques ◽  
Dc Bus ◽  
Modular Converter ◽  
Balancing Control

scholarly journals Multibattery-Fed Neutral-Point-Clamped DC–AC Converter With SoC Balancing Control to Maximize Capacity Utilization

2020 ◽  
Vol 67 (1) ◽  
pp. 16-27 ◽  
Author(s):  
Sergio Busquets-Monge ◽  
Alber Filba-Martinez ◽  
Salvador Alepuz ◽  
Joan Nicolas-Apruzzese ◽  
Adria Luque ◽  
...  
Keyword(s):  
Capacity Utilization ◽  
Neutral Point ◽  
Balancing Control

An Optimized Capacitor Voltage Balancing Control for a Five-Level Nested Neutral Point Clamped Converter

2021 ◽  
Vol 36 (2) ◽  
pp. 2154-2165
Author(s):  
Javad Ebrahimi ◽  
Hamidreza Karshenas ◽  
Suzan Eren ◽  
Alireza Bakhshai
Keyword(s):  
Neutral Point ◽  
Voltage Balancing ◽  
Capacitor Voltage ◽  
Clamped Converter ◽  
Balancing Control

Neutral‐point potential balancing control strategy of three‐level active NPC inverter based on SHEPWM

2017 ◽  
Vol 10 (14) ◽  
pp. 1943-1950 ◽  
Author(s):  
Cungang Hu ◽  
Grahame Holmes ◽  
Weixiang Shen ◽  
Xinghuo Yu ◽  
Qunjing Wang ◽  
...  
Keyword(s):  
Control Strategy ◽  
Neutral Point ◽  
Point Potential ◽  
Balancing Control

Study on Modulation Strategy with Neutral-Point Balancing Control for Three-Level Two Stage Matrix Converter

2012 ◽  
Vol 433-440 ◽  
pp. 6951-6958
Author(s):  
Wei Zhang Song ◽  
Yan Ru Zhong ◽  
Ying Ye ◽  
Chen Xue
Keyword(s):  
Matrix Converter ◽  
Neutral Point ◽  
Virtual Space ◽  
Modulation Method ◽  
Two Stage ◽  
Space Vector ◽  
Output Performance ◽  
Point Potential ◽  
Sinusoidal Input ◽  
Balancing Control

Aim to the three-level neutral-point potential balancing problem of three-level two stage matrix converter(TLTSMC),which is a new topology from matrix converter family that can synthesis three-level voltage in order to improve output performance in terms of reduced harmonic contents, this paper discussed the operating principles and a space vector modulation strategy with neutral-point potential balancing control for this topology. The method is divided into two control stages. Space vector PWM without zero vectors is used for rectifier stage. The modulation method of inverter stage based on the virtual space vector concept only requires the condition that the flow of neutral-point current equals zero, so the neutral-point balancing problem of this topology is effectively settled. The commutation principle of TLTSMC is analyzed. Finally, the validity and feasibility of this modulation method is tested by simulation and experiment, the result indicates that TLTSMC with the modulation strategy produces better output performance in terms of reduced harmonic contents and is also able to maintain sinusoidal input currents, furthermore, guarantees the balancing of neutral-point potential over the full range of output voltage.

scholarly journals Multi-carrier switching strategy for high-bandwidth potential balancing control of multilevel inverters

2021 ◽  
Vol 12 (4) ◽  
pp. 2384
Author(s):  
Zuraidi Md Tahir ◽  
Auzani Jidin ◽  
Mohd Luqman Mohd Jamil
Keyword(s):  
Electric Drive ◽  
Control Strategies ◽  
Short Circuit ◽  
Direct Torque Control ◽  
Neutral Point ◽  
Torque Control ◽  
Switching Frequency ◽  
Imbalance Problem ◽  
High Bandwidth ◽  
Balancing Control

<span lang="EN-US">This paper confers on investigation of a direct torque control (DTC) of induction motor drive by 3 level neutral point clamp (NPC) multilevel inverter. The imbalance problem may deteriorate the electric drive performances which might cause a short circuit condition. Various balancing control strategies were proposed, however, most of them employed complex space vector modulation (SVM) and hysteresis-based controller that generates variable switching frequencies. The proposed method will offer a reliable balancing control strategy with a constant switching frequency, and moreover, it will provide excellent electric drive performances. This research proposed a new multi carrier switching modulation strategy that establish a high-band-width control for neutral point potential in the NPC inverter. Potency of the proposed high-bandwidth potential balancing strategy is validated through the MATLAB/SIMULINK environment.</span>

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