Search Results - "Tolbert, Leon M."

Single-Phase On-Board Bidirectional PEV Charger for V2G Reactive Power Operation by Kisacikoglu, Mithat C., Kesler, Metin, Tolbert, Leon M.

“…This paper presents the design and implementation of a single-phase on-board bidirectional plug-in electric vehicle (PEV) charger that can provide reactive…”
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Efficiency Impact of Silicon Carbide Power Electronics for Modern Wind Turbine Full Scale Frequency Converter by Hui Zhang, Tolbert, L M

“…Power electronics is an enabling technology found in most renewable energy generation systems. Because of its superior voltage blocking capabilities and fast…”
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Methodology for Wide Band-Gap Device Dynamic Characterization by Zhang, Zheyu, Guo, Ben, Wang, Fei Fred, Jones, Edward A., Tolbert, Leon M., Blalock, Benjamin J.

“…The double pulse test (DPT) is a widely accepted method to evaluate the dynamic behavior of power devices. Considering the high switching-speed capability of…”
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Design and Performance Evaluation of Overcurrent Protection Schemes for Silicon Carbide (SiC) Power MOSFETs by Zhiqiang Wang, Xiaojie Shi, Yang Xue, Tolbert, Leon M., Fei Wang, Blalock, Benjamin J.

“…Overcurrent protection of silicon carbide (SiC) metal-oxide-semiconductor field-effect transistors (MOSFETs) remains a challenge due to lack of practical…”
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Review of Power Electronics Components at Cryogenic Temperatures by Gui, Handong, Chen, Ruirui, Niu, Jiahao, Zhang, Zheyu, Tolbert, Leon M., Wang, Fei Fred, Blalock, Benjamin J., Costinett, Daniel, Choi, Benjamin B.

“…In order to apply power electronics systems to applications such as superconducting systems under cryogenic temperatures, it is necessary to investigate the…”
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Active Gate Driver for Crosstalk Suppression of SiC Devices in a Phase-Leg Configuration by Zhang, Zheyu, Wang, Fred, Tolbert, Leon M., Blalock, Benjamin J.

“…In a phase-leg configuration, the high-switching-speed performance of silicon carbide (SiC) devices is limited by the interaction between the upper and lower…”
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EV/PHEV Bidirectional Charger Assessment for V2G Reactive Power Operation by Kisacikoglu, Mithat C., Ozpineci, Burak, Tolbert, Leon M.

“…This paper presents a summary of the available single-phase ac-dc topologies used for EV/PHEV, level-1 and -2 on-board charging and for providing reactive…”
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Short-Circuit Characterization and Protection of 10-kV SiC mosfet by Ji, Shiqi, Laitinen, Marko, Huang, Xingxuan, Sun, Jingjing, Giewont, William, Wang, Fei, Tolbert, Leon M.

“…This paper presents the characterization of the temperature-dependent short-circuit performance of a Gen3 10 kV/20 A silicon carbide (SiC) mosfet . The test…”
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A New Selective Loop Bias Mapping Phase Disposition PWM With Dynamic Voltage Balance Capability for Modular Multilevel Converter by Jun Mei, Ke Shen, Bailu Xiao, Tolbert, Leon M., Jianyong Zheng

“…This paper presents an improved phase disposition pulsewidth modulation (PWM) (PDPWM) for the modular multilevel converter (MMC) which is based on the…”
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Impact of SiC Devices on Hybrid Electric and Plug-In Hybrid Electric Vehicles by Hui Zhang, Tolbert, L M, Ozpineci, B

“…The application of silicon carbide (SiC) devices as battery interface, motor controller, etc., in a hybrid electric vehicle (HEV) will be beneficial due to…”
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Characteristic Investigation and Control of a Modular Multilevel Converter-Based HVDC System Under Single-Line-to-Ground Fault Conditions by Xiaojie Shi, Zhiqiang Wang, Bo Liu, Yiqi Liu, Tolbert, Leon M., Wang, Fred

“…This paper presents the analysis and control of a multilevel modular converter (MMC)-based HVDC transmission system under three possible single-line-to-ground…”
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Stray Inductance Reduction of Commutation Loop in the P-cell and N-cell-Based IGBT Phase Leg Module by Shengnan Li, Tolbert, Leon M., Fei Wang, Fang Zheng Peng

“…This paper proposes a novel packaging method for insulated-gate bipolar transistor (IGBT) modules based on the concepts of P-cell and N-cell. The novel…”
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Development of High-Power High Switching Frequency Cryogenically Cooled Inverter for Aircraft Applications by Gui, Handong, Zhang, Zheyu, Chen, Ruirui, Ren, Ren, Niu, Jiahao, Li, Haiguo, Dong, Zhou, Timms, Craig, Wang, Fei, Tolbert, Leon M., Blalock, Benjamin J., Costinett, Daniel, Choi, Benjamin B.

“…To better support the superconducting propulsion system in the future aircraft applications, the technologies of high-power high switching frequency power…”
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Digitized Feedforward Compensation Method for High-Power-Density Three-Phase Vienna PFC Converter by Lijun Hang, Ming Zhang, Tolbert, L. M., Zhengyu Lu

“…This paper presents a front-end three-phase ac/dc power factor correction rectifier, which is based on the three-level bidirectional-switch Vienna topology. On…”
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Development of a SiC JFET-Based Six-Pack Power Module for a Fully Integrated Inverter by Fan Xu, Han, T. J., Dong Jiang, Tolbert, L. M., Fei Wang, Nagashima, J., Sung Joon Kim, Kulkarni, S., Barlow, F.

“…In this paper, a fully integrated silicon carbide (SiC)-based six-pack power module is designed and developed. With 1200-V, 100-A module rating, each switching…”
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Genetic Algorithm-Based Optimal Sizing of Hybrid Battery/Ultracapacitor Energy Storage System for Wave Energy Harvesting Applications by Aktas, Ahmet, Onar, Omer C., Asa, Erdem, Ozpineci, Burak, Tolbert, Leon M.

“…The output power of an ocean wave energy (WE) system has an intermittent and stochastic characteristic. WE output power can be transferred to the grid without…”
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Grid Forming Inverter With Increased Short-Circuit Contribution to Address Inverter-Based Microgrid Protection Challenges by Ferrari, Maximiliano, Tolbert, Leon M., Piesciorovsky, Emilio C.

“…Substantial differences in fault levels between grid-tied and islanded modes is one of the primary challenges of microgrid protection. During grid-tied mode,…”
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A Distributed Power System Control Architecture for Improved Distribution System Resiliency by Schneider, Kevin P., Laval, Stuart, Hansen, Jacob, Melton, Ronald B., Ponder, Leslie, Fox, Lance, Hart, John, Hambrick, Joshua, Buckner, Mark, Baggu, Murali, Prabakar, Kumaraguru, Manjrekar, Madhav, Essakiappan, Somasundaram, Tolbert, Leon M., Liu, Yilu, Dong, Jiaojiao, Zhu, Lin, Smallwood, Aaron, Jayantilal, Avnaesh, Irwin, Chris, Yuan, Guohui

“…Electric distribution systems around the world are seeing an increasing number of utility-owned and non-utility-owned (customer-owned) intelligent devices and…”
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An Online Rotor Time Constant Estimator for the Induction Machine by Kaiyu Wang, Chiasson, J., Bodson, M., Tolbert, L.M.

“…Indirect field-oriented control of an induction machine requires knowledge of the rotor time constant to estimate the rotor flux linkages. Here, an online…”
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Fast Quasi-Static Time-Series Simulation for Accurate PV Inverter Semiconductor Fatigue Analysis with a Long-Term Solar Profile by Liu, Yunting, Tolbert, Leon M., Kritprajun, Paychuda, Dong, Jiaojiao, Zhu, Lin, Ollis, Thomas Ben, Schneider, Kevin P., Prabakar, Kumaraguru

“…Power system simulations with long-term data typically have large time steps, varying from one second to a few minutes. However, for PV inverter semiconductors…”
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