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DC-link capacitors voltage balancing in multilevel four-leg diode-clamped converters
31st Annual Conference of IEEE Industrial Electronics Society, 2005. IECON 2005., 2005Multilevel four-leg four-wire converters are creating increasing interest nowadays in applications as active filters. They present several advantages compared to the three-leg converter topologies. Recently the control complexity has been reduced thanks to the use of new and powerful microprocessor systems, hence the balance of the DC-link voltage is ...
J.I. Leon +3 more
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About the DC-link capacitors voltage balance in multi-point clamped converters
IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200), 2002The multi-point clamped converter (MPCC) represents an interesting technical solution to overcome the limitations in voltage and power posed by the existing semiconductor devices. However, if real power must be delivered to the load, DC-link capacitors exhibit a problematic voltage unbalance, that can be faced in both active or passive ways, that is ...
MARCHESONI, MARIO +2 more
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DC-link Capacitor Voltage Balancing Control for Series Half Bridge LLC Resonant Converter
2020 IEEE Applied Power Electronics Conference and Exposition (APEC), 2020This paper presents control methods that achieve DC-link capacitor voltage balance of a series half bridge (SHB) LLC resonant converter operating at different modulation schemes. The principle of the proposed balancing control method is analyzed and studied based on six normally used operation modes of the SHB LLC converter.
Chi Zhang +3 more
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Common mode-voltage elimination and DC-link balancing for three-level inverter
International Conference on Sustainable Energy and Intelligent Systems (SEISCON 2011), 2011The paper presents the effects and importance of parameters like harmonics and currents that are to be accounted for the satisfactory performance of an inverter. Practically known problems such as common-mode voltage between inverter and load neutral and the dc-link unbalance of source capacitors are affect the performances of the inverter.
S.K. Sahoo, R. Sultanat, A. Anbarasu
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2016 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM), 2016
High power quality, efficiency and cost effective are crucial aspects in industrial applications. Therefore, the four-switch three-phase inverter (4S3P) has been discovered. But it has been known by many performance limitations in the low-frequency region, because of the generation of an unbalanced current due to the fluctuation of the centre tap ...
Hicham Fadil +4 more
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High power quality, efficiency and cost effective are crucial aspects in industrial applications. Therefore, the four-switch three-phase inverter (4S3P) has been discovered. But it has been known by many performance limitations in the low-frequency region, because of the generation of an unbalanced current due to the fluctuation of the centre tap ...
Hicham Fadil +4 more
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A DC-Link Capacitor Voltage Balancer Integrated into LLC-based Auxiliary Power Supply
2019 IEEE Applied Power Electronics Conference and Exposition (APEC), 2019Capacitor voltage balancing circuits are required for applications using series capacitor to provide high dc-link voltage. This paper propose a new dc-link capacitor voltage balancer integrated into the LLC auxiliary power supply. Only small balancing inductors are added which are connected between the middle points of adjacent capacitors and half ...
Yuxiang Shi +5 more
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A Seven-Level Hybrid Inverter with DC-Link and Flying Capacitor Voltage Balancing
2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2019Hybrid Multi-Level Inverter(MLI) topologies are gaining attention over conventional ones due to their extended applications in the power, industrial and renewable energy sectors. MLIs are optimized which can provide compact size, reduced cost and higher efficiency compared to the conventional types.
T. Abhilash +2 more
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Asymmetrical DC link voltage balance of a cascaded two level inverter based STATCOM
TENCON 2010 - 2010 IEEE Region 10 Conference, 2010Voltage unbalance is one of the main limitation of cascaded based multilevel STATCOM. This paper presents a simple control strategy for the voltage balance of a cascaded two level inverter based STATCOM. The topology consists of two conventional three phase two level inverters connected in cascade.
N N V S Babu, D A Rao, B G Fernandes
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A simple method for balancing the DC-link voltage of three-level inverters
2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230), 2002In this paper, a simple control method for balancing the DC-link voltage of three-level neutral-point-clamped (NPC) inverters is presented. The method is based on DC-DC power converter technology. In addition, the proposed topology is enhanced to also improve the NPC inverter's ride-through ability.
A. von Jouanne +2 more
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Space Vector Modulation with DC-Link Voltage Balancing Control for Three-Level Inverters
2006 International Conference on Power Electronic, Drives and Energy Systems, 2006The DC-link voltage balancing scheme for three-level inverter is proposed in this paper. Dependence of the DC-link capacitor voltage deviation on DC-link current and inverter switching states is established for proposed three-level inverter. Pulse pattern rearrangements for space vector PWM (SVPWM) using degree of freedom available in choice of ...
Kalpesh H. Bhalodi, Pramod Agrawal
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