April 7-9, CPES Annual Power Electronics Conference Proceedings. Participating University. Dr. Fred C. Lee, Center Director

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1 Center for Power Electronics Systems An Engineering Research Center CPES Annual Power Electronics Conference Proceedings April 7-9, 2013 Dr. Fred C. Lee, Center Director Virginia Polytechnic Institute and State University Participating University Rensselaer Polytechnic Institute Sponsored by CPES Industry Consortium

2 CPES Annual Power Electronics Conference Proceedings April 7-9, 2013 TABLE OF CONTENTS Tutorials Tutorial 1: Advances in Si, SiC and GaN Power Devices by Dr. Paul Chow, Rensselaer Polytechnic Institute Tutorial 2: Magnetic Core Loss Measurement Techniques: Review, Improvement and Measurement Details by Dr. Mingkai Mu, Virginia Tech Technical Sessions Session T1: Wide Bandgap Power Devices T1.1: Design Considerations for High Frequency Battery Charger with GaN Device Wei Zhang, Fred C. Lee T1.2: Evaluation and Application of 600V GaN HEMT in Cascode Structure Xiucheng Huang, Zhengyang Liu, Qiang Li, Fred. C. Lee T1.3: Physics-Based Analytical Model for High-Voltage Bidirectional GaN Transistor Switch Using Lateral GaN Power HEMT John Waldron, Zhongda Li, T. Paul Chow Session T2: Converters and Control T2.1: Optimal Trajectory Control of LLC Resonant Converter for Soft Start-Up Weiyi Feng, Fred C. Lee T2.2: Switching Performance Optimization for High Switching Frequency High Efficiency 3-level Neutral Point Clamped Phase Leg Yang Jiao, Sizhao Lu, Fred. C. Lee

3 T2.3: External Ramp Autotuning for Current-mode Control of Switching Converters Pei-Hsin Liu, Yingyi Yan, Fred C. Lee, Paolo Mattavelli T2.4: Dual Active Bridge based Battery Charger for Plug-in Hybrid Electric Vehicle with Charging Current Containing Low Frequency Ripple LingxiaoXue, Daniel Diaz, Zhiyu Shen, FangLuo, Paolo Mattavelli, Dushan Boroyevich Session T3: Modeling and Analysis T3.1: Small Signal Analysis of V2 Control Using Current Mode Equivalent Circuit Model Yingyi Yan, Fred C. Lee, Paolo Mattavelli, Shuilin Tian T3.2: Nonlinear Sideband Effects in Small-Signal Input dq Admittance of Six-Pulse Diode Rectifiers Marko Jaksic, Zhiyu Shen, Igor Cvetkovic, Paolo Mattavelli, Dushan Boroyevich, Mohamed Belkhayat, Jacob Verhulst T3.3: Influence of Phase-Locked Loop on dq Frame Impedance of Three-Phase Voltage-Source Converters and the Impact on System Stability So Wen, Dushan Boroyevich, Paolo Mattavelli, Zhiyu Shen, Rolando Burgos Session T4: EMI and Magnetics T4.1: Matrix Transformer for LLC Resonant Converters Daocheng Huang, Shu Ji, Fred. C. Lee T4.2: Transformer Shielding Technique for Common Mode Noise Reduction in Isolated Converters Yuchen Yang, Daocheng Huang, Qiang Li, Fred. C. Lee T4.3: EMI Terminal Modelling of DC-Fed Motor Drives I: Common-Mode Noise Hemant Bishnoi, Paolo Mattavelli, Dushan Boroyevich T4.4: Influence of the High-Frequency Near-Field Coupling Between Magnetic Components on the EMI Filter Design Ruxi Wang, Handy Fortin Blanchette, Mingkai Mu, Dushan Boroyevich, Paolo Mattavelli T4.5: Impact of Interleaving on EMI Noise Reduction of Paralleled Three Phase Voltage Source Converters Xuning Zhang, Dushan Boroyevich, Rolando Burgos Session T5: Packaging and Integration T5.1: An Update on Recent Advances in Nanosilver Paste for Packaging Power Semiconductor Devices Guo-Quan Lu

4 T5.2: A 1200 V, 60 A SiC MOSFET Multi-Chip Phase-Leg Module for High-Temperature, High- Frequency Applications Zheng Chen, Yiying Yao, Dushan Boroyevich, Khai Ngo, Paolo Mattavelli, Kaushik Rajashekara T5.3: PCB Integrated Magnetics for High Frequency DC-DC Converter Yipeng Su, Wenli Zhang, Qiang Li, Mingkai Mu, Fred C. Lee Dialogue Sessions Dialogue Session D1: Wide Bandgap Power Devices D1.1: Evaluation of Commercial SiC and GaN Devices using Full Bridge Inverter Simulation Harsh Naik, T. Paul Chow D1.2: Monolithic Optoelectronic Integration of GaN High-Voltage Power FETs and LEDs with a Selective Epi Removal Process John Waldron, Robert Kariicek, T. Paul Chow D1.3: Investigation of Pyroelectric Polarization Effect On GaN MOS Capacitors and Field-Effect Transistors Jie Zhang, Colin Hitchcock, Zhongda Li, T. Paul Chow D1.4: Estimate of Avalanche Breakdown Voltage in 4H-SiC Zachary Stum, Yi Tang, Harsh Naik, T. Paul Chow D1.5: Loss Analysis of 600V Gallium Nitride HEMT in Cascode Structure with Simulation Model Zhengyang Liu, Xiucheng Huang, Qiang Li, Fred. C. Lee D1.6: Three-Level Driving Method for GaN Power Transistor in Synchronous Buck Converter Xiaoyong Ren, David Reusch, Shu Ji, Zhiliang Zhang, Mingkai Mu, Fred C. Lee D1.7: Optimization of a High Density Gallium Nitride Based Non-Isolated Point of Load Module David Reusch, Fred C. Lee, David Gilham, Yipeng Su D1.8: Analytical Loss Model of High Voltage GaN HEMT in Cascode Configuration Xiucheng Huang, Zhengyang Liu, Qiang Li, Fred. C. Lee D1.9: Characterization and Comparison of Seven Different 1.2 kvsic Power Semiconductor Devices at High Temperature Christina DiMarino, Zheng (Henry) Chen, Milisav Danilovic, Dushan Boroyevich, Paolo Mattavelli D1.10: Behavioral Comparison of Si and SiC Power MOSFETs for High-Frequency Applications Zheng (Henry) Chen, Jin Li, Dushan Boroyevich D1.11: Experience with 1 to 3 MHz Power Conversion Using egan FETs Yin Wang, Woochan Kim, Zhemin Zhang, Jesus Calata, Khai D. T. Ngo

5 D1.12: Avalanche Breakdown Design Parameters in GaN Zhongda Li, Vipindas Pala, T. Paul Chow Non-Paper Poster: NP1.1:1200V, 25A Bi-Directional Si UMOSIGBT Using Low Temperature Wafer Bonding Dialogue Session D2: Converters and Control D2.1: A Universal Adaptive Driving Scheme for Synchronous Rectification in LLC Resonant Converters Weiyi Feng, Fred C. Lee, Paolo Mattavelli, Daocheng Huang D2.2: Optimal Trajectory Control of Burst Mode for LLC Resonant Converter Weiyi Feng, Fred C. Lee, Paolo Mattavelli D2.3: Modulation Methods Comparison for Neutral-Point-Clamped Three-Phase Inverters Xuning Zhang, Dushan Boroyevich, Rolando Burgos, Paolo Mattavelli, Fred Wang D2.4: Ripple Power Balance Analysis on Plug-in Hybrid Electric Vehicle Charger with Sinusoidal Charging Lingxiao Xue, Paolo Mattavelli, Dushan Boroyevich D2.5: A Testbed for Experimental Validation of a Low-Voltage DC Nanogrid for Buildings Igor Cvetkovic, Dong Dong, Wei Zhang, Li Jiang, Dushan Boroyevich, Fred C. Lee, Paolo Mattavelli D2.6: Leakage Current Reduction in Single-Phase Bi-Directional AC-DC Full-Bridge Inverter Dong Dong, Fang Luo, Dushan Boroyevich, Paolo Mattavelli D2.7: Modular-Multilevel-Converters - Family A Survey of Features, Topologies, Controls and Applications Jun Wang, Rolando Burgos, Dushan Boroyevich D2.8: FPGA-Based Gain-Scheduled Controller for Control Optimization of Resonant Converters Applied to Domestic Induction Heating Oscar Lucia, Oscar Jimenez, Paolo Mattavelli, Dushan Boroyevich D2.9: State of the Art: Survey of FACTS Devices Chi Li, Rolando Burgos, Yaman C. Evrenosoglu Non-Paper Posters: NP2.1: State-Trajectory Control of LLC converter Implemented by Microcontroller NP2.2: Comparison of Three-Phase AC-AC Matrix Converter and Voltage DC-Link Back-to-Back Converter Topologies in Respect ofemi Filter

6 NP2.3: Grid Filter Design for3-level NPC converter NP2.4: Analysis ofsmart-panel Based PV Converter System NP2.5: Two Stage LLC Current Driver for Multiple Strings ofoled NP2.6: State-Trajectory Analysis ofllc Resonant Converter Dialogue Session D3: Modeling and Analysis D3.1: Small-signal Analysis and Design of Constant Frequency V2 Peak Control Shuilin Tian, Fred C. Lee, Paolo Mattavelli, Yingyi Yan D3.2:12 Average Current Mode Control for Switching Converters Yingyi Yan, Fred C. Lee, Paolo Mattavelli, Pei-Hsin Liu D3.3: Small Signal Analysis and Design of Active Droop Control Using Current Mode Equivalent Circuit Model Yingyi Yan, Pei-Hsin Liu, Fred C. Lee, Paolo Mattavelli D3.4: Analysis of Phase Locked Loop (PLL) on DQ Impedance Measurement in Three-Phase AC Systems Zhiyu Shen, Marko Jaksic, Bo Zhou, Paolo Mattavelli, Dushan Boroyevich, Jacob Verhust, Mohamed Belkhayat D3.5: Design and Implementation of Three-Phase AC Impedance Measurement Unit (IMU) with Series and Shunt Injection Zhiyu Shen, Marko Jaksic, Justin Walraven, Paolo Mattavelli, Mohamed Belkhayat Dushan Boroyevich, Jacob Verhust, D3.6: Three-Phase AC System Impedance Measurement Unit (IMU) Using Chirp Signal Injection Zhiyu Shen, Marko Jaksic, Justin Walraven, Paolo Mattavelli, Dushan Boroyevich, Jacob Verhust, Mohamed Belkhayat D3.7: Grid-Synchronization Modeling and Its Stability Analysis for Multi-Paralleled Three-Phase Inverter Systems Dong Dong, Bo Wen, Paolo Mattavelli, Yaosuo Xue D3.8: Anti-lslanding Protection in Three-Phase Converters Usng Grid Synchronization Small- Signal Stability Dong Dong, Dushan Boroyevich, Paolo Mattavelli, Bo Wen, Yaosuo Xue D3.9: A Droop Controller is Intrinsically a Phase-Locked Loop Qing-Chang Zhong, Dushan Boroyevich

7 D3.10: Small-Signal Impedance Identification of Three-Phase Diode Rectifier with Multi-Tone Injection Bo Zhou, Marko Jaksic, Paolo Mattavelli, Dushan Boroyevich, Sheau-Wei Fu, Kamiar Karimi D3.11: Application of Multi-Tone Approach in Three-Phase AC System Impedance Measurement So Zhou, Marko Jaksic, Zhiyu Shen, Bo Wen, Paolo Mattavelli, Dushan Boroyevich, Sheau-Wei Fu, Kamiar Karimi Non-Paper Posters: NP3.1: Alternate Arm Converter (AAC) NP3.2: Static Operation of380v DC Nanogrid NP3.3:3.5 kw Wind Turbine and Converter Used in DC Electronic Distribution System NP3.4: A Survey on the Latest Works on VRM Design NP3.5: Single-Stage Boost DC-AC Converter for Single-Phase Grid-Connected Photovoltaic Systems Dialogue Session D4: EMI and Magnetics D4.1: Modeling of Core Loss under Rectangular AC Voltage and DC Bias Current Mingkai Mu, Fred C. Lee D4.2: High Frequency Isolated Bus Converter with Gallium Nitride Transistors and Integrated Transformer David Reusch, Fred C. Lee D4.3: Overview of Three-Dimension Integration for Point-of-Load Converters Fred C. Lee, Qiang Li D4.4: Improvement in Magnetic Material Characterization Method for Arbitrary Wave Excitation Dongbin Hou, Mingkai Mu, Fred C Lee D4.5: EMI Terminal Modelling of DC-Fed Motor Drives II: Differential and Total Noise Hemant Bishnoi, Rolando Burgos, Paolo Mattavelli, Dushan Boroyevich D4.6: Total Flux Minimization Control for Integrated Inter-Phase Inductors in Paralleled, Interleaved Three-Phase Two-Level Voltage-Source Converters With Discontinuous Space- Vector Modulation Di Zhang, Fred Wang, Rolando Burgos, Dushan Boroyevich D4.7: EMI Filter Design Considering In-Circuit Impedance Mismatching Fang Luo, Dushan Boroyevich, Paolo Mattavelli, Hemant Bishnoi

8 D4.8: EMI Filter Design and Optimization for Both AC and DC Side in a DC-fed Motor Drive System Xuning Zhang, Dushan Boroyevich, Paolo Mattavelli, JingXue, Fred Wang D4.9: Size and Weight Dependence of the Input EMI Filter on Switching Frequency for Low Voltage Bus Aircraft Applications Milisav Danilovic, Fang Luo, Lingxiao Xue, Ruxi Wang, Paolo Mattavelli, Dushan Boroyevich D4.10: Improved Common Mode Elimination Modulation for Neutral-Point-Clamped Three-Phase Inverters Xuning Zhang, Dushan Boroyevich, Rolando Burgos, Paolo Mattavelli, Fred Wang D4.11: Impact and Compensation of Dead Time on Common Mode Elimination Modulation for Neutral-Point-Clamped Three-Phase Inverters Xuning Zhang, Dushan Boroyevich, Rolando Burgos, Paolo Mattavelli, Fred Wang D4.12: Impact of Interleaving on Common Mode EMI Filter Weight Reduction of Paralleled Three- Phase Voltage-Source Converters Xuning Zhang, Dushan Boroyevich, Paolo Mattavelli, Fred Wang D4.13: High Frequency Model of a Transformer for Conducted EMI Analysis Kumar Gandharva, Khai D. T. Ngo Dialogue Session D5: Packaging and Integration D5.1: FEA Modeling of the Low Profile Coupled Inductor with Non-uniform Flux Distribution Yipeng Su, Qiang Li, Fred C. Lee D5.2: Survey of High-Temperature Polymeric Encapsulants for Power Electronic Packaging Yiying Yao, Dushan Boroyevich, Khai D. T. Ngo D5.3: Improved Procedure to Design Coupled Inductors Based on Geometry Constant Zhemin Zhang, Khai D. T. Ngo D5.4: System for Power Cycling and Zth Measurement to Determine the Reliability of IGBT Modules Mudassar Khatib, Khai D. T. Ngo, Guo-Quan Lu D5.5: Inductor Geometries with Significantly Reduced Height Han Cui, KhaiD.T. Ngo D5.6: Integrated Current Sensor Using Giant Magneto Resistive (GMR) for Planar Power Module Woochan Kim, Guo-Quan Lu, Khai D.T. Ngo D5.7: Simplification of the Nanosilver Sintering Process for Bonding Large-Area Semiconductor Chips: Reduction of Hot-Pressing Temperature below 200 C Kewei Xiao, Jesus N. Calata, Hanguang Zheng, Khai D. T. Ngo, Guo-Quan Lu

9 D5.8: Low Temperature Joining Technique of Die-attachment by Silver Sintering KeweiXiao, Mai T.K. Ngo, MudassarM. Khatib, KhaiD.T. Ngo, Guo-Quan Lu D5.9: Fabrication of a Double-side Cooled, High Temperature Power Module with Sintered Nanosilver Interconnect for Automotive Applications David Berry, Li Jiang, Khai D.T. Ngo, Guangyin Lei, Susan Luo, Guo-Quan Lu D5.10: Reliability-Oriented Design of Three-Phase Power Converters for Aircraft Applications Rolando Burgos, Gang Chen, Fred Wang, Dushan Boroyevich, Willem Gerhardus Odendaal, Jacobus Daniel Van Wyk Non-Paper Posters: NP5.1: Reliability Evaluation ofdie-attachment on Cu Surface by Low-Temperature Sintering of Nanosilver Paste NP5.2: Characterization of Double-Sided Sintered IGBT Modules NP5.3: Linear Actuator with Permanent Magnets NP5.4: Three Level Phase Leg Characterization and Analysis NP5.5: Development and Reliability Evaluation Techniques of Electronic Packaging Materials and Power Modules