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Capacitor Voltage Balance on NPC Multilevel Converter
2019 International Aegean Conference on Electrical Machines and Power Electronics (ACEMP) & 2019 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM), 2019In this paper, a modulation strategy is formulated to be integrated in the model of a 5-level AC-DC converter. The resulting formulation is able to deals with the unbalance voltage problem generated in the dc-link. Such modulation strategy can be calculated offline and the solution can be stored as a multidimensional array for its use during the online
Juan Diego Nieto Cardona +2 more
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Capacitor voltage balancing in modular multilevel inverters
2014 International Electrical Engineering Congress (iEECON), 2014This paper presents implementation of an universal modulation scheme on an proposed modular multilevel inverter for achieving charge balancing of the capacitors. Modulation is done by using sinusoidal pulse width modulation. Simulations are provided to prove the conclusion of the scheme.
Vivek Kumar Sharma +3 more
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IEEE transactions on industrial electronics (1982. Print), 2020
The present paper provides a solution to operate multilevel dual active bridge (ML-DAB) converters built upon neutral point clamped switching legs in a full-bridge disposition and with any number of levels on either side of the converter.
Àlber Filbà-Martínez +2 more
semanticscholar +1 more source
The present paper provides a solution to operate multilevel dual active bridge (ML-DAB) converters built upon neutral point clamped switching legs in a full-bridge disposition and with any number of levels on either side of the converter.
Àlber Filbà-Martínez +2 more
semanticscholar +1 more source
Space Vector Based Capacitor Voltage Balancing for a Three-Level NPC Traction Inverter Drive
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020A dc-link capacitor voltage balancing topology based on virtual space vector is proposed for traction drive application in the field-weakening region. Four different strategies are implemented and their duty ratios are individually derived. The system is
A. Choudhury, P. Pillay
semanticscholar +1 more source
Capacitor Voltage Balancing in Multi-Level Voltage Reinjection (MLVR) Converters
IEEE Transactions on Power Delivery, 2005In common with conventional multi-level conversion configurations, the multi-level voltage reinjection scheme uses multi-level clamping and dc series connected capacitors. The operation conditions that lead to capacitor voltage unbalance are analyzed and the use of adaptive adjustment of the clamping switches conducting periods is investigated.
Y.H. Liu, J. Arrillaga, N.R. Watson
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IEEE transactions on power electronics, 2020
Multilevel converters are widely applied in medium voltage (MV) drive systems due to the attractive features, such as the ability to use devices with lower voltage ratings, high equivalent switching frequency, etc.
Hao Tian, Y. Li
semanticscholar +1 more source
Multilevel converters are widely applied in medium voltage (MV) drive systems due to the attractive features, such as the ability to use devices with lower voltage ratings, high equivalent switching frequency, etc.
Hao Tian, Y. Li
semanticscholar +1 more source
A generalized capacitor voltage balancing scheme for flying capacitor multilevel converters
2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2010Multilevel power electronic converters are the converter of choice in medium-voltage applications due to their reduced switch voltage stress, better harmonic performance, and lower switching losses. Although it has received little attention, the flying-capacitor multilevel converter has a distinct advantage in terms of its ease of capacitor voltage ...
Mostafa Khazraei +3 more
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IEEE Journal of Emerging and Selected Topics in Power Electronics
Although switched-capacitor (SC) multilevel inverters (MLIs) offer self-voltage balancing of flying capacitors and voltage gain higher than unity, the advantages come at the cost of high current stress and power loss in the SC circuit and dc source ...
Pradipta Kumar Pal +4 more
semanticscholar +1 more source
Although switched-capacitor (SC) multilevel inverters (MLIs) offer self-voltage balancing of flying capacitors and voltage gain higher than unity, the advantages come at the cost of high current stress and power loss in the SC circuit and dc source ...
Pradipta Kumar Pal +4 more
semanticscholar +1 more source
Capacitor Voltage Balancing for Single-Phase Asymmetric Cascaded H-Bridge Inverters
IEEE transactions on industry applications, 2020This article presents an analysis of conventional single-phase cascaded H-bridge multilevel inverters composed of two and three cells. The dc-link can be a dc source or a floating capacitor.
A. P. Monteiro +4 more
semanticscholar +1 more source
2020 IEEE First International Conference on Smart Technologies for Power, Energy and Control (STPEC), 2020
This paper presents the analysis of the capacitor voltage balancing of Modular multilevel converter (MMC) for the application of various modulation techniques.
A. Bonde +3 more
semanticscholar +1 more source
This paper presents the analysis of the capacitor voltage balancing of Modular multilevel converter (MMC) for the application of various modulation techniques.
A. Bonde +3 more
semanticscholar +1 more source