Results 201 to 210 of about 770 (252)

A New Nine-Level Voltage Source Inverter with Capacitor Voltage Balancing

IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, 2018
In this paper, a new nine-level voltage source inverter for medium-voltage high-power applications is proposed. The proposed topology is a combination of the active nested neutral-point clamped inverter and the flying capacitor inverter. A carrier-based sinusoidal pulse width modulation scheme is developed to balance the voltage of the flying ...
Rasul Tarvirdilu-Asl, Mehdi Narimani
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Voltage balancing in low voltage distribution networks using Scott transformers

22nd International Conference and Exhibition on Electricity Distribution (CIRED 2013), 2013
A low voltage (LV) radial feeder balancing method using Scott transformers is introduced in the paper. It converts an unbalanced three-phase voltage into a balanced threephase voltage at either a downstream location on the feeder or at a three-phase load supply point.
Li, Yun, Crossley, Peter A.
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Voltage-Balancing Method for IGBTs Connected in Series

IEEE Transactions on Industry Applications, 2003
This paper presents a new method for balancing voltages of series-connected insulated gate bipolar transistors (IGBTs). This method can be implemented only by adding simple circuits to the gate drive system of the IGBTs, and its effect of balancing the IGBT's collector-emitter voltages during the switching transients is remarkable.
K. Sasagawa, Y. Abe, K. Matsuse
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BRAVO: Balanced Reliability-Aware Voltage Optimization

2017 IEEE International Symposium on High Performance Computer Architecture (HPCA), 2017
Defining a processor micro-architecture for a targeted productspace involves multi-dimensional optimization across performance, power and reliability axes. A key decision in sucha definition process is the circuit-and technology-driven parameterof the nominal (voltage, frequency) operating point.
Karthik Swaminathan, Nandhini Chandramoorthy, Chen-Yong Cher, Ramon Bertran, Alper Buyuktosunoglu, Pradip Bose   +5 more
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MMC Capacitor Voltage Decoupling and Balancing Controls

IEEE Transactions on Power Delivery, 2015
A Modular Multilevel Converter (MMC) control system based on converter energy storage is proposed in this paper for two different control modes: active power and dc voltage. The proposed control system decouples the sub-module (SM) capacitor voltages from the dc bus voltage. One of the practical applications is the management of active redundant SMs. A
Hani Saad, Xavier Guillaud, Jean Mahseredjian, Sebastien Dennetiere, Samuel Nguefeu   +4 more
openaire   +3 more sources

New Topology for voltage balancing in railway substations

IFAC Proceedings Volumes, 2012
Abstract This paper deals with a new technique of voltage unbalance compensation for single phase railway substations. Using the concept of Chopper Controlled Impedance, the authors study the feasibility of an active Steinmetz circuit based on AC choppers.
New topology for voltage balancing in railway substations Raimondo G, Ladoux P, MARINO, Pompeo, Caron H.   +3 more
openaire   +2 more sources

Series connection of IGBT's with active voltage balancing

IEEE Transactions on Industry Applications, 1999
This paper describes a gate drive circuit for series-connected IGBTs in high voltage applications. The control criterion of the gate drive circuit is to actively limit the voltages during switching transients, while minimizing the switching transient and losses. In order to achieve the control criterion, a closed loop control scheme is adopted.
V. Chitta, null Soonwook Hong, D.A. Torrey   +2 more
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Balancing high-voltage batteries

Power Engineering Journal, 1991
How often do we hear, at the site of a natural disaster such as a storm or flood1, ‘if only I'd made sure my insurance policy was up to date! ’ It is always easy to be wise after the event, and all too easy to be misled into believing that cover is adequate to cope with any emergency. So it is with standby battery systems.
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A UPFC-based voltage compensator with current and voltage balancing function

Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005., 2005
In this paper, a control strategy for a three-phase UPFC-based voltage compensator with the function of current and voltage balancing is proposed. Line voltage variations and line current and voltage unbalance are compensated simultaneously by the proposed compensator.
Y. Ikeda, T. Kataoka
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The Voltage Balance in the Mercury Cell

Journal of The Electrochemical Society, 1950
The distribution of voltage drop through a mercury cell has been calculated and directly measured at different current densities in an industrial de Nora cell which is described. The cell was operated at constant temperature and fed with 305 g/l sodium chloride solution at a rate proportional to current density.
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