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Adaptive Control-based frequency control strategy for PV/ DEG/ battery power system during islanding conditions. [PDF]
Sci RepGhalib MA +3 more
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A Natural DC-Link Voltage Balancing of Diode-Clamped Inverters in Parallel Systems
IEEE Transactions on Industrial Electronics, 2013This paper presents a method of natural dc-link capacitor voltage balancing of three- and single-phase neutral-point-clamped (NPC) inverters working in parallel configurations. It is proven that, in such parallel systems, when the inverters are insulated, the conditions for natural balancing can be achieved, and the application of a balancing circuit ...
Robert Stala
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Analysis of Cascaded Z-Source Topology Implementing DC-Link Voltage Balancing
2020 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2020Cascaded Z-Source topology coupled with a three-level diode clamped inverter provides an alternative multilevel buck-boost power conversion. Z-Source Inverter utilizes the shoot through states to conjoin the diode clamped inverter with one of the sources in the cascaded Z-Source topology.
Muhammad M. Roomi, Mohd Tariq, Bin Zhao
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DC link voltage balancing in multilevel inverter
2015 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2015], 2015This paper presents an effective method to control the DC link voltage balance in diode clamped Multilevel Inverter. To trigger the gate pulse for the switches, Level Shifted PWM technique is used. Two closed PI controllers are used for balancing the DC voltage control and load voltage control and also used for analyzing the performance parameters and ...
M Balamurugan +4 more
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Method for balancing capacitors voltages on split DC-links
2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe), 2016A technique to actively balance the voltages on series-connected capacitors designated to split DC sources whose loads comprise power converters is presented. It performs such balancing dynamically, enabling the voltage equalization even for small capacitors under wide power and voltages ranges. Proposal consists on lightly controlling the power of one
Douglas Pappis +2 more
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Generalized DC-link voltage balancing control method for multilevel inverters
2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC), 2013This paper presents a general dc-link voltage balancing control method for multilevel inverters based on a generalized space vector pulse width modulation (SVPWM) scheme, with no requirements for additional auxiliary-power circuits. The SVPWM scheme generates all the available switching states and switching sequences based on two simple mappings, and ...
Yi Deng, Koon Hoo Teo, Ronald G. Harley
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Comparison of DC-link Voltage Balancing Strategies for Three Level NPC Inverter
2021 International Conference on Intelligent Technologies (CONIT), 2021A major drawback of three-level neutral point clamped (NPC) inverters is the imbalance in the DC-link voltage. The unbalanced capacitor voltage fluctuates the neutral point voltage and causes low-frequency oscillations subsequently. Therefore, balancing the dc-link capacitor voltage is essential for NPC inverters in order to minimize the neutral point ...
G. Pavan Kumar, K.S Jiji
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Diode-clamped multilevel converters: a practicable way to balance DC-link voltages
IEEE Transactions on Industrial Electronics, 2002The converter topologies identified as diode-clamped multilevel (DCM) or, equivalently, as multipoint clamped (MPC), are rarely used in industrial applications, owing to some serious drawbacks involving mainly the stacked bank of capacitors that constitutes their multilevel DC link. The balance of the capacitor voltages is not possible in all operating
MARCHESONI, MARIO, P. TENCA
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DC-link voltage balancing method for a hybrid asymmetric multilevel converter
2013 15th European Conference on Power Electronics and Applications (EPE), 2013The paper presents the dc-link voltage balancing method for a five-level hybrid asymmetric multilevel converter based on a neutral point clamped (NPC) converter with H-bridge (HB) converters. The considered converter, which is referred to as NPC-HB, is treated in this paper as a modification of the classic three-level NPC converter.
Marcin Zygmanowski +2 more
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