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Title: Design and model of series-connected high-voltage DC multipliers
Authors: Quraan, Mahran 
Zahran, Ahmad 
Herzallah, Ahmed 
Ahmad, Ahmad 
Keywords: Electric generators;Capacitors;Voltage regulators - Control;Harmonic analysis;Electric circuits - Direct current;Analog multipliers;Electric current rectifiers;Electric fault location;High voltages
Issue Date: 28-Nov-2019
Publisher: IEEE
Journal: IEEE Transactions on Power Electronics 
Abstract: The generation of high dc voltages is necessary for feeding many technical applications and testing the insulation material of high-voltage dc transmission lines and ac power cables with long lengths. The article proposes a modular multiplier high-voltage dc generator with integrated Cockcroft–Walton (CW) circuits. In this new topology, CW circuits are connected in series to produce a high dc output voltage with low regulation factor (<2%) and a negligible ripple factor without the need for costly filters to produce a nearly constant output voltage. The modules are fed by low input ac voltage sources that have the same magnitude and frequency. Numerical simulations using MATLAB/Simulink confirm the viability of the proposed generator. The generator is finally validated by experimental tests on a kV-size prototype.
DOI: 10.1109/TPEL.2019.2956649
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