Research Members


Over the years, Dr. Lehman has helped the education and supervision of many accomplished research graduate students that have gone on to illustrious careers. His students have won and continue to receive multiple awards for their teaching and research, both at Northeastern University and within IEEE. In his approximately 20 years in academics, Dr. Lehman has supervised / currently supervises approximately 30 graduate research thesis/projects, over half of which are for the PhD. He places special emphasis on recruiting cultural diversity, as well as female graduate students. Funded students tend to have an MS degree already and likely have some industry experience working in the power supply industry with PCB layout experience. In addition to the graduate students, Dr. Lehman has a special interest/program in working with under-represented minority undergraduate students on research projects.

Albert Alexander (Post-Doctoral Research Fellow)

BE: Bharathiar University, India
ME: Anna University
PhD: Anna University , India
Research Interests: Multilevel Inverters, Power Quality, PWM control strategies, Intelligent computing, Solar PV modelling and design, solar PV fault detection and diagnosis
Ongoing project: Fault tolerant capability for solar photovoltaic system with intelligent control techniques

Bharatiraja Chokkalingam (Post-Doctoral Research Fellow)

BE: Kumarguru College of Technology, Bharathivar University
ME: Government College of Technology, Anna University
PhD: SRM University
Research Interests: Design of Power Electronic Converters, Z-Source Inverter and MLIs for RE Applications, PWM Strategies, Control and Design of Grid Connected RES systems, Development of Electrical Vehicle and its Charging System
Ongoing project: Multi Input Multi Output DC to DC Converter, Plug-and-Play Submodule PV

Camara N. JOHNSON (Master Student)

BS: Hampton University
Research Interests: Power Electronics, Renewable Energy, Solar Energy, LED Devices
Ongoing project: Health Monitoring and Life Estimation of Metal Oxide Varistors

Chang LIU (Master Student)

BS: Southwest Jiaotong University
MS: Northeastern University
Research Interests: Power Converter Design, Real-Time Control System
Ongoing project: Modular Differential Power Process (mDPP)

Dawood Talebi KHANMIRI (PhD candidate)

BS: Iran University of Science and Technology, Tehran, Iran
MS: Iran University of Science and Technology, Tehran, Iran
Research Interests: Design, Modeling and Control of Power Converters, Aging and Failure Analysis of Metal Oxide Varistors, Variable Frequency Drives (VFDs)
Ongoing project: Overvoltage and Surge Protection in Variable Frequency Drives

Deyu LI (Master Student)

BS: Sichuan University, Chengdu, China
Research Interests: Power System, PV System and Battery System
Ongoing project: Modular Subpanel Photovoltaic Converter System

Dorin O. NEACSU (Visiting Associate Professor)

Research Interests: Implementation of PWM patterns within a very large size flash memory
Ongoing project: Arc Fault Generation and Detection, Hybrid Surge Protection Devices

Guanlin LI (Visiting Associate Professor)

BS: Harbin Institute of Technology
MS: Harbin Institute of Technology
PhD: Harbin Institute of Technology
Research Interests: Nonlinear circuit and chaos; fractional circuit and system
Ongoing project: Fractional Averaging Method for DC-DC Converters

Imani-Kai HORTON (PhD Candidate)

BS: Hampton University
Research Interests: Renewable Energy Systems, Electrical Power Systems, Power Electronics, Electric Vehicles

Jen-Hung (Peter) HUANG (PhD Candidate)

BSEE: Tamkang University, Taipei, Taiwan
MSEE: Northeastern University, Boston, Massachusetts
Research Interests: Solar energy harvesting, high density dc-dc converters, modeling and control
Ongoing project: Solar energy conversion systems

Jonathan C. KIM (PhD candidate)

BS: Boston University, Massachusetts, USA
Research Interests: Arc Fault Generation and Detection; Control techniques for power electronics applications, power converter embedded solar PV systems
Ongoing project: Arc Fault Detection in PV Systems, DC nanogrid communication for a Photovoltaic Blanket, Differential Power Processing

Manjunath MATAM (PhD candidate)

B.Tech: SK University, Andhrapradesh State, India
M.Tech: NIT Warangal, Telangana State, India
Research Interests: Applications of Power electronics to Solar PV systems, Dynamic PV reconfiguration
Ongoing project: Dynamic PV reconfiguration of large PV plants

Norma ANGLANI (Assistant Professor)

BS: Electrical Engineering, University of Pavia
MS: Electrical Engineering, University of Pavia
PhD: Electrical Engineering, University of Pavia
Research Interests: Modeling and optimizing energy systems , decision support tools for policy makers, energy management of industrial facilities, microgrids.
Ongoing project: Sustainable Universities, key performance indicators for university campuses; Implications of the Photovoltaic Generation on the Non-Photovoltaic Generationin the Lombardy Region

Qifan Li (PhD candidate)

BS: Xi'an Jiaotong University
Research Interests: Power Electronics, Photovoltaic Power Forecast
Ongoing project: WattSun

Su SHENG (PhD candidate)

BS: Zhejiang University, Zhejiang, China
MS: Zhejiang University, Zhejiang, China
Research Interests: Micro-inverter in solar photovoltaic (PV) systems, microgrid systems, high density DC-DC converters
Ongoing project: Inverter parallel techniques in microgrid systems

Telles Brunelli LAZZARIN (Post-Doctoral Research Fellow)

BS: Federal University of Santa Catarina
MS: Federal University of Santa Catarina
PhD: Federal University of Santa Catarina
Research Interests: Power Electronics, Renewable Energy Sources, Switched Capacitor Converters
Ongoing project: DC-DC and DC-AC power converters for renewable energy systems

Wenkang HUANG (PhD candidate)

Research Interests: Magnetic design, thermal analysis, and high-current dc-dc converters
Ongoing project: Inductors for single-phase and multiphase dc-dc converters

Xinmin (Cindy) ZHANG (PhD candidate)

BS: Hunan University, Hunan, China
MS: Zhejiang University, Zhejiang, China
Research Interests: Inverter/Converter Design and Control, Solar PV Power Forecasting, Motor Design and Drive, Thermal Analysis
Ongoing projects: DC-AC PV Inverter; Universal Converter Design

Ya GUO (PhD Candidate)

MS: Auburn University
Research Interests: Modeling and Optimization Energy Systems, Power and Energy Management for Microgrids, Power Electronics
Ongoing project: Optimization in power and energy flow management for PV-microgrid in market environment

Yuan Li (Visiting Associate Professor)

Research Interests: PV power generation, grid connected inverter, AC/DC microgrids
Ongoing project: WattSun, PV Blanket

Yue ZHENG (PhD candidate)

BS: Tsinghua University, Beijing, China
MS: Northeastern University, Boston, Massachusetts
Research Interests: Maximum Power Point Tracking (MPPT) algorithm, PWM algorithm in SD Card, DC/DC paralleling converters for DC grid, Solar blanket embeded system
Ongoing project: Solar Blanket Paralleling DC/DC Converters for DC Bus