Publications

This page is updated several times a year. For the most up-to-date list of patents and publications, please visit Dr. Ludois’s Google Scholar page via the button below.

Prize Papers

First Prize Paper, awarded in 2017 by the IEEE Transactions on Industry Applications,

B. Ge and D. C. Ludois, “Design Concepts for a Fluid-Filled Three-Phase Axial-Peg-Style Electrostatic Rotating Machine Utilizing Variable Elastance,” in IEEE Transactions on Industry Applications, vol. 52, no. 3, pp. 2156-2166, May-June 2016.

Second Prize Paper, awarded in 2017 by the IEEE JESTPE (IEEE Journal of Emerging and Selected Topics in Power Electronics)

J. Dai and D. C. Ludois, “Capacitive Power Transfer Through a Conformal Bumper for Electric Vehicle Charging,” in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 4, no. 3, pp. 1015-1025, Sept. 2016.

First Prize Paper, awarded in 2016 by the IAS Electric Machines Committee with IEEE ECCE

B. Ge and D. C. Ludois, “Design concepts for a 3-phase axial peg style electrostatic rotating machine utilizing variable elastance,” 2015 IEEE Energy Conversion Congress and Exposition (ECCE), Montreal, QC, 2015, pp. 6519-6528.

Second Prize Paper, awarded in 2016 by the IEEE JESTPE (IEEE Journal of Emerging and Selected Topics in Power Electronics)

J. Dai and D. C. Ludois, “Single Active Switch Power Electronics for Kilowatt Scale Capacitive Power Transfer,” in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 3, no. 1, pp. 315-323, March 2015.

2017

Nie, Y.; Brown, I. P.; Ludois, D.C. , “Dead-beat Direct Torque and Flux Control for Wound Field Synchronous Machines,” in IEEE Transactions on Industrial Electronics, IEEE Xplore early access, to appear in print Fall 2017.
Ge, B.; Ghule, A.; Ludois, D.C., , “Three-Dimensional Printed Fluid-Filled Electrostatic Rotating Machine Designed with Conformal Mapping Methods,” in IEEE Transactions on Industry Applications, vol. 53, no. 5, pp. 4348-4359, Sept.-Oct. 2017.
Dai, J.; Hagen, S.; Ludois, D.C.; Brown, I. P., , “Brushless Synchronous Generator Field Excitation and Voltage Regulation via Capacitive Coupling through a Journal Bearing,” in IEEE Transactions on Industry Applications, vol. 53, no. 4, pp. 3317-3326, July-Aug. 2017.
Dai, J.; Hagen, S.; Ludois, D.C., “Linear motion system cable elimination via multiphase capacitive power transfer through sliding journal bearings,” IEEE Applied Power Electronics Conference and Exposition (APEC), Tampa, FL, USA, 2017, pp. 2157-2164.
A. Schroedermeier and D. C. Ludois (2017), “Integrated Inductor and Capacitor With Co-Located Electric and Magnetic Fields,” in IEEE Transactions on Industry Applications, vol. 53, no. 1, pp. 380-390, Jan.-Feb. 2017.

2016

US 9479085, Ludois, D.C.; Erickson, M.J.; (2016), “Self-Conforming Plates for Capacitive Machines such as Electrostatic Motors and Generators,” filed Sept. 13th 2013 by C-Motive Technologies Inc., issued October 25th 2016.
US 9424984, Ludois, D.C.; (2016), “Integrated capacitor and inductor having co-located magnetic and electrical energy storage volumes,” filed by WARF, March 5th 2014, issued August 23rd 2016.
Dai J and Ludois DC (2016), “Capacitive Power Transfer Through a Conformal Bumper for Electric Vehicle Charging,”, IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 4, no. 3, pp. 1015-1025, Sept. 2016.
Ge, B; Ghule, A; Ludois, DC, (2016), “Optimization of a 3D Printed Variable Elastance Electrostatic Machine Using Conformal Mapping,” Energy Conversion Congress and Exposition (ECCE), IEEE, Milwaukee, WI, September 2016.
Dai, J.; Hagen, S.; Ludois, D.C.; Brown, I. P., (2016), “Synchronous Generator Field Excitation via Capacitive Coupling through a Journal Bearing,” Energy Conversion Congress and Exposition (ECCE), IEEE, Milwaukee, WI, September 2016.
Di Gioia, A; Brown, I. P.; Knippel, R.; Hagen, S.; Ludois, D.C.; Nie Y.; Dai, J.; Alteheld, C. (2016), “Design of a Wound Field Synchronous Machine for Electric Vehicle Traction with Brushless Capacitive Field Excitation,” Energy Conversion Congress and Exposition (ECCE), IEEE, Milwaukee, WI, September 2016.
Ge B and Ludois DC (2016), “Design Concepts for a Fluid-Filled Three-Phase Axial-Peg-Style Electrostatic Rotating Machine Utilizing Variable Elastance”, IEEE Transactions on Industry Applications. Vol. 52(3), pp. 2156-2166.
Ge B and Ludois DC (2016), “Dielectric Liquids for Enhanced Field Force in Macro Scale Direct Drive Electrostatic Actuators and Rotating Machinery,”, IEEE Transactions on Dielectrics & Electrical Insulation, vol. 23, no. 4, pp. 1924-1934, August 2016.

2015

Dai J and Ludois D (2015), “A Survey of Wireless Power Transfer and a Critical Comparison of Inductive and Capacitive Coupling for Small Gap Applications”, Power Electronics, IEEE Transactions on. Vol. 30(11), pp. 6017-6029. IEEE.
Dai J and Ludois DC (2015), “Biologically inspired coupling pixilation for position independence in capacitive power transfer surfaces”, In 2015 IEEE Applied Power Electronics Conference and Exposition (APEC). , pp. 3276-3282.
Dai J and Ludois DC (2015), “Single active switch power electronics for kilowatt scale capacitive power transfer”, IEEE Journal of Emerging and Selected Topics in Power Electronics. Vol. 3(1), pp. 315-323. IEEE.
Dai J and Ludois DC (2015), “Wireless electric vehicle charging via capacitive power transfer through a conformal bumper”, In 2015 IEEE Applied Power Electronics Conference and Exposition (APEC). , pp. 3307-3313.
Ge B and Ludois D (2015), “A 1-phase 48-pole axial peg style electrostatic rotating machine utilizing variable elastance”, In 2015 IEEE International Electric Machines & Drives Conference (IEMDC). , pp. 604-610.
Ge B and Ludois D (2015), “Design concepts for a 3-phase axial peg style electrostatic rotating machine utilizing variable elastance”, In 2015 IEEE Energy Conversion Congress and Exposition (ECCE). , pp. 6519-6528.
Hagen S, Knippel R, Dai J and Ludois DC (2015), “Capacitive coupling through a hydrodynamic journal bearing to power rotating electrical loads without contact”, In Wireless Power Transfer Conference (WPTC), 2015 IEEE. , pp. 1-4.
Ludois D and Reed J (2015), “Brushless Mitigation of Bearing Currents in Electric Machines via Capacitively Coupled Shunting”, Industry Applications, IEEE Transactions on. Vol. 51(5), pp. 3783-3790. IEEE.
Ludois DC (2015), “Varying Capacitance Rotating Electrical Machine”. October 1, 2015.
Schroedermeier A and Ludois D (2015), “An Integrated Inductor and Capacitor with Co-Located Electric and Magnetic Fields”, In Energy Conversion Congress and Exposition (ECCE), 2015 IEEE. , pp. 5293-5301.

2014

Ge B and Ludois DC (2014), “Evaluation of dielectric fluids for macro-scale electrostatic actuators and machinery”, In 2014 IEEE Energy Conversion Congress and Exposition (ECCE). , pp. 1457-1464.
Ge B, Ludois DC and Perez R (2014), “The use of dielectric coatings in capacitive power transfer systems”, In 2014 IEEE Energy Conversion Congress and Exposition (ECCE). , pp. 2193-2199.
Ludois D (2014), “Integrated capacitor and inductor having co-located magnetic and electrical energy storage volumes”. March 5, 2014.
Ludois DC, Erickson MJ and Reed JK (2014), “Aerodynamic fluid bearings for translational and rotating capacitors in noncontact capacitive power transfer systems”, IEEE Transactions on Industry Applications. Vol. 50(2), pp. 1025-1033. IEEE.
Ludois DC and Reed JK (2014), “Brushless mitigation of bearing currents via capacitively coupled shunting”, In Electrical Machines (ICEM), 2014 International Conference on. , pp. 2336-2342.
Ludois DC, Reed JK and Hanson K (2014), “Wound field rotating machine with capacitive power transfer”. March 17, 2014.
Ludois DC and Venkataramanan G (2014), “Simplified terminal behavioral model for a modular multilevel converter”, IEEE Transactions on Power Electronics. Vol. 29(4), pp. 1622-1631. IEEE.
Shea A and Ludois DC (2014), “A flexible and cost effective gate drive platform for rapid prototyping”, In 2014 IEEE Applied Power Electronics Conference and Exposition-APEC 2014. , pp. 560-565.

2013

Mendoza-Araya PA, Kollmeyer PJ and Ludois DC (2013), “V2G integration and experimental demonstration on a lab-scale microgrid”, In 2013 IEEE Energy Conversion Congress and Exposition. , pp. 5165-5172.
Shea A and Ludois DC (2013), “Reduction of permanent magnets in small-scale wind turbines”, In 2013 IEEE Energy Conversion Congress and Exposition. , pp. 5105-5111.

2012

Ludois D and Venkataramanan G (2012), “Modular multilevel converter as a low inductance machine drive”, In Power and Energy Conference at Illinois (PECI), 2012 IEEE. , pp. 1-4.
Ludois DC (2012), “Wind farms with DC collection networks using bridge of bridge multilevel converters”
Ludois DC, Reed J and Erickson M (2012), “Aerodynamic fluid bearings for capacitive power transfer and rotating machinery”, In 2012 IEEE Energy Conversion Congress and Exposition (ECCE). , pp. 1932-1937.
Ludois DC, Reed JK and Hanson K (2012), “Capacitive power transfer for rotor field current in synchronous machines”, IEEE Transactions on Power Electronics. Vol. 27(11), pp. 4638-4645. IEEE.
Ludois DC and Venkataramanan G (2012), “Simplified dynamics and control of Modular Multilevel Converter based on a terminal behavioral model”, In 2012 IEEE Energy Conversion Congress and Exposition (ECCE). , pp. 3520-3527.

2011

Ludois D, Hanson K and Reed JK (2011), “Capacitive power transfer for slip ring replacement in wound field synchronous machines”, In 2011 IEEE Energy Conversion Congress and Exposition. , pp. 1664-1669.
Ludois D, Lee J, Mendoza P and Venkataramanan G (2011), “Reuse of post-consumer e-waste for low cost micropower distribution”, In Global Humanitarian Technology Conference (GHTC), 2011 IEEE. , pp. 137-142.
Melendez-Vega PA, Venkataramanan G, Ludois D and Reed J (2011), “Low-Cost Light-Weight Quick-Manufacturable Blades for Human-Scale Wind Turbines”, In Global Humanitarian Technology Conference (GHTC), 2011 IEEE. , pp. 154-159.

2010

Ludois D, Mendoza P, Lee J and Venkataramanan G (2010), “The Microformer”
Ludois D and Venkataramanan G (2010), “An examination of AC/HVDC power circuits for interconnecting bulk wind generation with the electric grid”, Energies. Vol. 3(6), pp. 1263-1289. Molecular Diversity Preservation International.
Ludois DC, Reed JK and Venkataramanan G (2010), “Hierarchical control of bridge-of-bridge multilevel power converters”, IEEE Transactions on Industrial Electronics. Vol. 57(8), pp. 2679-2690. IEEE.
Reed J, Ludois D and Hamlin M (2010), “Power Conversion Coursework Using a Solid State Tesla Coil”, American Society for Engineering Education. American Society for Engineering Education.