Browsing by Author "eb3e6f93-dcf3-48f6-b2ab-a2ab3f77ca79"

Now showing items 1-6 of 6

    • A Design Methodology of Multiresonant Controllers for High Performance 400 Hz Ground Power Units 
      Rojas, Félix; Cárdenas, Roberto; Clare, Jon; Díaz, Matías; Pereda, Javier; Kennel, Ralph (Institute of Electrical and Electronics Engineers, 2019)
      In aerospace applications, a ground power unit has to provide balanced and sinusoidal 400 Hz phase-to-neutral voltages to unbalanced and nonlinear single-phase loads. Compensation of high-order harmonics is complex, as the ...
    • An integrated converter and machine control system for MMC-based high-power drives 
      Espinoza-B, Mauricio; Cárdenas Dobson, Jesús Roberto; Clare, Jon; Soto Sánchez, Diego; Díaz, Matías; Espina, Enrique; Hackl, Christoph M. (IEEE, 2019)
      The modular multilevel converter (MMC) is a promising topology for high-power drive applications. However, large voltage fluctuations can be produced in the floating capacitors when the machine operates with high stator ...
    • An Ultra-Hot Neptune in the Neptune desert 
      Jenkins, James Stewart; Díaz, Matías; Troncoso Kurtovic, Nicolás; Espinoza, Néstor; Vines, José I.; Peña Rojas, Pablo; Brahm, Rafael; Torres, Pascal; Cortés Zuleta, Pía; Soto, Maritza G.; Lopez, Eric D.; King, George W.; Wheatley, Peter J.; Winn, Joshua N.; Ciardi, David R.; Ricker, George; Vanderspek, Roland; Latham, David W.; Seager, Sara; Jenkins, Jon M.; Beichman, Charles A.; Bieryla, Allyson; Burke, Christopher J.; Christiansen, Jessie L.; Henze, Christopher E.; Klaus, Todd C.; McCauliff, Sean; Mori, Mayuko; Narita, Norio; Nishiumi, Taku; Tamura, Motohide; Pitogo de Leon, Jerome; Quinn, Samuel N.; Villaseñor, Jesús Noel; Vezie, Michael; Lissauer, Jack J.; Collins, Karen A.; Collins, Kevin I.; Isopi, Giovanni; Mallia, Franco; Ercolino, Andrea; Petrovich, Cristobal; Jordán, Andrés; Acton, Jack S.; Armstrong, David J.; Bayliss, Daniel; Bouchy, François; Belardi, Claudia; Bryant, Edward M.; Burleigh, Matthew R.; Jara Cabrera, Juan Miguel; Casewell, Sarah L.; Chaushev, Alexander; Cooke, Benjamin F.; Eigmüller, Philipp; Erikson, Anders; Foxell, Emma; Gänsicke, Boris T.; Gill, Samuel; Gillen, Edward; Günther, Maximilian N.; Goad, Michael R.; Hooton, Matthew J.; Jackman, James A. G.; Louden, Tom; McCormac, James; Moyano, Maximiliano; Nielsen, Louise D.; Pollacco, Don; Queloz, Didier; Rauer, Heike; Raynard, Liam; Smith, Alexis M. S.; Tilbrook, Rosanna H.; Titz-Weider, Ruth; Turner, Oliver; Udry, Stéphane; Walker, Simon R.; Watson, Christopher A.; West, Richard G.; Palle, Enric; Ziegler, Carl; Law, Nicholas; Mann, Andrew W. (Nature, 2020)
      About 1 out of 200 Sun-like stars has a planet with an orbital period shorter than one day: an ultrashort-period planet(1,2). All of the previously known ultrashort-period planets are either hot Jupiters, with sizes above ...
    • Model-predictive-control-based capacitor voltage balancing strategies for modular multilevel converters 
      Mora, Andrés; Urrutia, Matías; Cárdenas Dobson, Jesús Roberto; Angulo, Alejandro; Cerda Espinoza, Mauricio Alexis; Díaz, Matías; Lezana, Pablo (IEEE, 2019)
      This paper presents two capacitor voltage balancing (CVB) strategies for modular multilevel converter (MMC) applications. Both balancing schemes are based on model predictive control and are designed to efficiently solve ...
    • Solid state transformers: concepts, classification, and control 
      Shamshuddin, Mohammed Azharuddin; Rojas, Félix; Cárdenas Dobson, Jesús; Pereda, Javier; Díaz, Matías; Kennel, Ralph (MDPI, 2020)
      Increase in global energy demand and constraints from fossil fuels have encouraged a growing share of renewable energy resources in the utility grid. Accordingly, an increased penetration of direct current (DC) power sources ...
    • Vector control of a modular multilevel matrix converter operating over the full output-frequency range 
      Diaz, Matias; Cardenas, Roberto; Espinoza, Mauricio; Hackl, Christoph M.; Rojas, Felix; Clare, Jon C.; Wheeler, Patrick (Institute of Electrical and Electronics Engineers Inc., 2019)
      © 1982-2012 IEEE. The modular multilevel matrix converter (M 3 C) is an ac-to-ac converter topology suitable for the control of high-power variable-speed drives. The control of this converter is complex, particularly when ...