Find Research Outputs

Search concepts
Selected Filters
2014

Induction motor drive design for traction application based on drive-cycle energy minimization

Sridharan, S. & Krein, P. T., Jan 1 2014, APEC 2014 - 29th Annual IEEE Applied Power Electronics Conference and Exposition. Institute of Electrical and Electronics Engineers Inc., p. 1517-1521 5 p. 6803508. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Induction motors
Rotors
Fluxes
Energy dissipation
2016

Equivalent circuit model for pole-phase modulation induction machines

Magill, M. P., Krein, P. T. & Haran, K. S., Feb 16 2016, Proceedings - 2015 IEEE International Electric Machines and Drives Conference, IEMDC 2015. Institute of Electrical and Electronics Engineers Inc., p. 293-299 7 p. 7409074

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Phase modulation
Equivalent circuits
Poles
Geometry
2011

Introduction

Krein, P. T., Jan 1 2011, Power Electronics Handbook. Elsevier Inc., p. 1-14 14 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Power electronics
Networks (circuits)
Switches
Energy dissipation
Electronic equipment
2019

Variable-pole induction machine drive for electric vehicles

Libbos, E., Ku, B., Agrawal, S., Tungare, S., Banerjee, A. & Krein, P. T., May 2019, 2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019. Institute of Electrical and Electronics Engineers Inc., p. 515-522 8 p. 8785212. (2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electric vehicles
Poles
Torque
Degrees of freedom (mechanics)
Permanent magnets
2010

Review of methods for real-time loss minimization in induction machines

Bazzi, A. M. & Krein, P. T., Nov 1 2010, In : IEEE Transactions on Industry Applications. 46, 6, p. 2319-2328 10 p., 5565477.

Research output: Contribution to journalReview article

Hybrid vehicles
Induction motors
Physics
2012

Implementation of an augmented boost converter for improved load transient response

Neyens, T. J., Shenoy, P. S., Kapat, S. & Krein, P. T., May 17 2012, 2012 IEEE Power and Energy Conference at Illinois, PECI 2012. 6184613. (2012 IEEE Power and Energy Conference at Illinois, PECI 2012).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Transient analysis
Topology
Signal analysis
Electric potential
2016

A dynamic pole-phase modulation induction machine model

Magill, M. P. & Krein, P. T., Feb 16 2016, Proceedings - 2015 IEEE International Electric Machines and Drives Conference, IEMDC 2015. Institute of Electrical and Electronics Engineers Inc., p. 13-19 7 p. 7409030. (Proceedings - 2015 IEEE International Electric Machines and Drives Conference, IEMDC 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Phase modulation
Poles
Vector spaces
Energy conversion
Dynamic models
2014

Electrified vehicles and the smart grid: The ITS perspective

Cheng, X., Hu, X., Yang, L., Husain, I., Inoue, K., Krein, P., Lefevre, R., Li, Y., Nishi, H., Taiber, J. G., Wang, F. Y., Zha, Y., Gao, W. & Li, Z., Aug 2014, In : IEEE Transactions on Intelligent Transportation Systems. 15, 4, p. 1388-1404 17 p., 6869118.

Research output: Contribution to journalReview article

Electric vehicles
Economics
Communication
2016

Energy improvements from subpanel DC-DC converters in PV arrays with distributed mismatch

Galtieri, J. & Krein, P. T., Nov 18 2016, 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016. Institute of Electrical and Electronics Engineers Inc., p. 3213-3218 6 p. 7750259. (Conference Record of the IEEE Photovoltaic Specialists Conference; vol. 2016-November).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

DC-DC converters
Diodes
2013

The chimera of rare earth materials: Enhancing alternatives for machines and drives and managing the beast

Habetler, T. G., Harley, R. G., Rhett Mayor, J., Krein, P. T., Pekarek, S. & Sudhoff, S., Aug 22 2013, Proceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013. p. 1509-1550 42 p. 6556341. (Proceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Winding machines
Rare earths
Machine design
Thermal effects
Physics

A fast and flexible analytical approach for thermal modeling of a linear stator structure

Buyukdegirmenci, V. T., Nategh, S., Magill, M. P. & Krein, P. T., Aug 22 2013, Proceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013. p. 793-800 8 p. 6556184. (Proceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Stators
Finite element method
Electric machinery
Machine design
Laplace equation
2010

PID controller tuning in a dc-dc converter: A geometric approach for minimum transient recovery time

Kapat, S. & Krein, P. T., Oct 22 2010, 2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010. 5562367. (2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Tuning
Derivatives
Recovery
Controllers
Sliding mode control
2012

Analysis of electromechanical problems using the dual-primal finite element tearing and interconnecting method

Yao, W., Jin, J. & Krein, P. T., May 17 2012, 2012 IEEE Power and Energy Conference at Illinois, PECI 2012. 6184595. (2012 IEEE Power and Energy Conference at Illinois, PECI 2012).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electromechanical devices
Finite element method
Magnetostatics
Parallel processing systems
Eddy currents
2013

Machine characterization for short-term or instantaneous torque capabilities: An approach based on transient thermal response

Buyukdegirmenci, V. T. & Krein, P. T., Aug 22 2013, Proceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013. p. 801-808 8 p. 6556185. (Proceedings of the 2013 IEEE International Electric Machines and Drives Conference, IEMDC 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Torque
Electric machinery
Temperature
Insulation
Materials properties
2012
Domain decomposition methods
Electric machinery
Finite element method
Parallel processing systems
Tensors
2014
High electron mobility transistors
high electron mobility transistors
Molecular beam epitaxy
high current
molecular beam epitaxy
2010

Null response to a large signal transient in an augmented dc-dc converter: A geometric approach

Kapat, S. & Krein, P. T., Oct 22 2010, 2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010. 5562366. (2010 IEEE 12th Workshop on Control and Modeling for Power Electronics, COMPEL 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Switching frequency
Pulse width modulation
Switches
Bandwidth
Hysteresis
2015

Voltage regulation of a series-stacked system of processors by differential power processing

Das, D. & Krein, P. T., Sep 1 2015, 2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015. Institute of Electrical and Electronics Engineers Inc., 7236445. (2015 IEEE 16th Workshop on Control and Modeling for Power Electronics, COMPEL 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Series System
Voltage control
Voltage
Topology
Digital Circuits
2010

A method for impact assessment of faults on the performance of field-oriented control drives: A first step to reliability modeling

Bazzi, A. M., Dominguez-Garcia, A. & Krein, P. T., May 18 2010, APEC 2010 - 25th Annual IEEE Applied Power Electronics Conference and Exposition. p. 256-263 8 p. 5433661. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Electric vehicles
Fault detection
Induction motors
Hardware
Sensors
2016

Control for high momentary torque from vector-controlled induction machines

Buyukdegirmenci, V. T. & Krein, P. T., Feb 16 2016, Proceedings - 2015 IEEE International Electric Machines and Drives Conference, IEMDC 2015. Institute of Electrical and Electronics Engineers Inc., p. 897-903 7 p. 7409167. (Proceedings - 2015 IEEE International Electric Machines and Drives Conference, IEMDC 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Torque
Controllers
Electric potential
Induction motors
Saturation magnetization
2010

A modular power system architecture for military and commercial electric vehicles

O'Connell, T. C., Raczkowski, B. C., Amrhein, M., Wells, J. R., Tavernini, M. J., Krein, P. T. & Banner, J., Jan 1 2010, In : SAE Technical Papers.

Research output: Contribution to journalConference article

Commercial vehicles
Electric vehicles
Energy storage
Military vehicles
Hybrid vehicles
2011

Direct torque control stability conditions and compensation methods

Buyukdegirmenci, V. T. & Krein, P. T., Sep 14 2011, 2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011. p. 107-112 6 p. 5994751. (2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Torque control
Torque
Compensation and Redress
Controllers
Electric potential
2012

Differential power processing architecture for increased energy production and reliability of photovoltaic systems

Shenoy, P. S., Johnson, B. & Krein, P. T., Apr 30 2012, APEC 2012 - 27th Annual IEEE Applied Power Electronics Conference and Exposition. p. 1987-1994 8 p. 6166095. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Conversion efficiency
Processing
Reliability analysis
Energy conversion
Monitoring
2013

Differential power processing for DC systems

Shenoy, P. S. & Krein, P. T., Apr 1 2013, In : IEEE Transactions on Power Electronics. 28, 4, p. 1795-1806 12 p.

Research output: Contribution to journalArticle

Electric potential
Processing
Voltage regulators
Digital circuits
Energy conversion

Pre-energized compact auxiliary circuit to buffer loads from fast transients with the goal of managing load-informed power

Shan, Z., Krein, P. T., Tse, C. K. & Tan, S. C., Dec 9 2013, 2013 IEEE 14th Workshop on Control and Modeling for Power Electronics, COMPEL 2013. 6626433. (2013 IEEE 14th Workshop on Control and Modeling for Power Electronics, COMPEL 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Networks (circuits)
2011

Power delivery for series connected voltage domains in digital circuits

Shenoy, P. S., Fedorov, I., Neyens, T. & Krein, P. T., 2011, 2011 International Conference on Energy Aware Computing, ICEAC 2011. 6136698

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Digital circuits
Electric potential
Voltage regulators
Voltage control
Microprocessor chips
2010

A time-harmonic three-dimensional vector boundary element model for electromechanical devices

Oconnell, T. C. & Krein, P. T., Sep 1 2010, In : IEEE Transactions on Energy Conversion. 25, 3, p. 606-618 13 p., 5437340.

Research output: Contribution to journalArticle

Electromechanical devices
Boundary element method
Finite element method
Electric machinery
Eddy currents
2012

Minimum energy and capacitance requirements for single-phase inverters and rectifiers using a ripple port

Krein, P. T., Balog, R. S. & Mirjafari, M., Jul 3 2012, In : IEEE Transactions on Power Electronics. 27, 11, p. 4690-4698 9 p., 6145693.

Research output: Contribution to journalArticle

Energy storage
Capacitance
Capacitors
Electric potential
Electric lamps
2011

Beyond time-optimality: Energy-based control of augmented buck converters for near ideal load transient response

Shenoy, P. S., Krein, P. T. & Kapat, S., 2011, 2011 26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011. p. 916-922 7 p. 5744704

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Transient analysis
Bandwidth
Electric potential
2010

Photovoltaic converter module configurations for maximum power point operation

Kim, K. A. & Krein, P. T., May 18 2010, Proceedings of the 2010 Power and Energy Conference at Illinois, PECI 2010. p. 77-82 6 p. 5437152. (Proceedings of the 2010 Power and Energy Conference at Illinois, PECI 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2012

Examination of design strategies for inverter-driven induction machines

Magill, M. P. & Krein, P. T., May 17 2012, 2012 IEEE Power and Energy Conference at Illinois, PECI 2012. 6184581. (2012 IEEE Power and Energy Conference at Illinois, PECI 2012).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Power electronics
Electric traction
Machine design
Rotors
Innovation
2017

An Analytical Time-Domain Expression for the Net Ripple Produced by Parallel Interleaved Converters

Johnson, B. B. & Krein, P. T., Mar 2017, In : IEEE Transactions on Circuits and Systems II: Express Briefs. 64, 3, p. 289-293 5 p., 7457663.

Research output: Contribution to journalArticle

Fourier series
2012

Formulation of PID control for DC-DC converters based on capacitor current: A geometric context

Kapat, S. & Krein, P. T., Feb 20 2012, In : IEEE Transactions on Power Electronics. 27, 3, p. 1424-1432 9 p., 5982421.

Research output: Contribution to journalArticle

Three term control systems
DC-DC converters
Capacitors
Electric potential
Controllers
2011

Gaining vehicle-to-grid benefits with unidirectional electric and plug-in hybrid vehicle chargers

Fasugba, M. A. & Krein, P. T., Nov 7 2011, 2011 IEEE Vehicle Power and Propulsion Conference, VPPC 2011. 6043207. (2011 IEEE Vehicle Power and Propulsion Conference, VPPC 2011).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Plug-in hybrid vehicles
Reactive power
Electric vehicles
Scheduling
2010

Power supply aware computing

Shenoy, P. S. & Krein, P. T., Dec 1 2010, 2010 International Conference on Energy Aware Computing, ICEAC 2010. 5702316. (2010 International Conference on Energy Aware Computing, ICEAC 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Microprocessor chips
Microprocessor
Computing
Cost reduction
Energy efficiency
2015

PowerFlow: A Toolbox for Modeling and Simulation of Aircraft Systems

Williams, M., Sridharan, S., Banerjee, S., Mak, C., Pauga, C., Krein, P., Alleyne, A., Jacobi, A. & D'Urso, S., Sep 15 2015, In : SAE Technical Papers. 2015-September, September

Research output: Contribution to journalConference article

Aircraft
Engines
Aircraft models
Power quality
System stability
2019

One year submillisecond fast solar database: Collection, investigation, and application

Cao, Y., Magerko, J. A., Serna, R., Qin, S., Pilawa-Podgurski, R. C. N. & Krein, P. T., Sep 2019, 2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019. Institute of Electrical and Electronics Engineers Inc., p. 2047-2053 7 p. 8913161. (2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sampling
Short Intervals
Power Electronics
Renewable Energy
Data Reduction
2015

Modular switched-capacitor DC-DC converters tied with lithium-ion batteries for use in battery electric vehicles

Cao, Y., Lei, Y., Pilawa-Podgurski, R. C. N. & Krein, P. T., Oct 27 2015, 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015. Institute of Electrical and Electronics Engineers Inc., p. 85-91 7 p. 7309673

Research output: Chapter in Book/Report/Conference proceedingConference contribution

DC-DC converters
Capacitors
Electric drives
Insulated gate bipolar transistors (IGBT)
Hardware
2010

A digital implementation of continuous-time ripple correlation control for photovoltaic applications

Kroeger, K. P., Choi, S., Bazzi, A. M., Johnson, B. B. & Krein, P. T., 2010, Proceedings of the 2010 Power and Energy Conference at Illinois, PECI 2010. p. 7-11 5 p. 5437166

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Manual control
Graphical user interfaces
Phase shift
Compensation and Redress
2012

Differential power processing for efficiency and performance leaps in utility-scale photovoltaics

Shenoy, P. S., Kim, K. A., Krein, P. T. & Chapman, P. L., Nov 26 2012, Program - 38th IEEE Photovoltaic Specialists Conference, PVSC 2012. p. 1357-1361 5 p. 6317852. (Conference Record of the IEEE Photovoltaic Specialists Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Processing
Power electronics
2010

Ripple correlation control applied to electric vehicle regenerative braking

Choi, S., Bazzi, A. M. & Krein, P. T., May 18 2010, Proceedings of the 2010 Power and Energy Conference at Illinois, PECI 2010. p. 88-92 5 p. 5437150. (Proceedings of the 2010 Power and Energy Conference at Illinois, PECI 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Regenerative braking
Electric vehicles
MATLAB
Energy conservation
2014

Synchronization of nonlinear oscillators in an lti electrical power network

Johnson, B. B., Dhople, S. V., Hamadeh, A. O. & Krein, P. T., Mar 2014, In : IEEE Transactions on Circuits and Systems I: Regular Papers. 61, 3, p. 834-844 11 p., 6701226.

Research output: Contribution to journalArticle

Synchronization
Communication
Electric potential
2013

An average modeling approach for mobile refrigeration hybrid power systems with improved battery simulation

Cao, Y. & Krein, P. T., Sep 16 2013, 2013 IEEE Transportation Electrification Conference and Expo: Components, Systems, and Power Electronics - From Technology to Business and Public Policy, ITEC 2013. 6574501. (2013 IEEE Transportation Electrification Conference and Expo: Components, Systems, and Power Electronics - From Technology to Business and Public Policy, ITEC 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Refrigeration
Cost effectiveness
Electric power systems
Trucks
MATLAB
2017

Minimization of system-level losses in VSI-based induction motor drives: Offline strategies

Sridharan, S. & Krein, P. T., Mar 1 2017, In : IEEE Transactions on Industry Applications. 53, 2, p. 1096-1105 10 p., 7752804.

Research output: Contribution to journalArticle

Induction motors
Torque
Stators
Aircraft
2014

A 0.79 pJ/K-Gate, 83% efficient unified core and voltage regulator architecture for sub/near-threshold operation in 130 nm CMOS

Zhang, S., Tu, J. S., Shanbhag, N. R. & Krein, P. T., Nov 1 2014, In : IEEE Journal of Solid-State Circuits. 49, 11, p. 2644-2657 14 p., 6901296.

Research output: Contribution to journalArticle

Voltage regulators
Capacitors
Energy efficiency
FIR filters
Electric potential
2012

Review of benefits and challenges of vehicle-to-grid technology

Yilmaz, M. & Krein, P. T., Dec 17 2012, 2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012. p. 3082-3089 8 p. 6342356. (2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Reactive power
Resource allocation
Electricity
Degradation
Communication
2016

Opportunities for photovoltaic system operation below parity: Costs and benefits of active grid support

Magerko, J. A. & Krein, P. T., Nov 18 2016, 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016. Institute of Electrical and Electronics Engineers Inc., p. 2025-2029 5 p. 7749984. (Conference Record of the IEEE Photovoltaic Specialists Conference; vol. 2016-November).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cost benefit analysis
Costs
2015

Dynamic filtering of stochastic solar resources using HVAC drive control - A determination of feasible bandwidth

Cao, Y., Magerko, J. A., Navidi, T. & Krein, P. T., Oct 27 2015, 2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015. Institute of Electrical and Electronics Engineers Inc., p. 3127-3134 8 p. 7310098. (2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Air conditioning
Ventilation
Bandwidth
Heating
Solar energy
2017

Opportunities for photovoltaic system operation below parity: Costs and benefits of active grid support

Magerko, J. A. & Krein, P. T., Jan 1 2017, 2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017. Institute of Electrical and Electronics Engineers Inc., p. 1-5 5 p. (2017 IEEE 44th Photovoltaic Specialist Conference, PVSC 2017).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Cost benefit analysis
Costs

A bidirectional wide load range multiphase buck/boost converter for differential power processing

Das, D. & Krein, P. T., Aug 18 2017, 2017 IEEE 18th Workshop on Control and Modeling for Power Electronics, COMPEL 2017. Institute of Electrical and Electronics Engineers Inc., 8013360. (2017 IEEE 18th Workshop on Control and Modeling for Power Electronics, COMPEL 2017).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Converter
Voltage
Electric potential
Processing
Range of data