Yujing Liu
After 17 years working in ABB Corporate Research with the last position of Senior Principal Scientist, Yujing Liu became full professor in 2013 on electrical power engineering at Chalmers with focus on the applications of electrical machines and power electronics in sustainable electrical systems. Yujing Liu leads his research team to develop innovative and cost-effective solutions for renewable energy conversion and transportation electrification. Some examples of on-going research include (1) electrically-excited machine; (2) integrated PE-machine drive; (3) fuel cell powered drivetrain; (4) modular distributed vehicle drive; (5) 5-level MV NPC converter and generator for renewable power; (6) synchronous reluctance motor; and (7) electrified drive for vessels; and (8) inductive charging (3.7 kW to 200 kW). He is Chalmers' project leader in 2 EU Horizon2020 projects. He teaches the course "Electrical Machines: Design and Analysis" for 80 master students and the PhD course "High Efficiency Electrical Machines" for 26 students. Now he supervises 1 postdoc, 9 PhD students, 2 project researcher and several master students. In 2018 he was appointed as the Head of Unit for Electrical Machines and Power Electronics at Dept. of Electrical Engineering at Chalmers.
Showing 30 publications
Thermal and Manufacturing Aspects of Traction Motors Potting: A Deep Experimental Evaluation
Design of Maximum Power Point Tracking for Dynamic Power Response of Tidal Undersea Kite Systems
A Review on Different Aspects of Traction Motor Design for Railway Applications
Multiple electrical machines applied for high drive train efficiency
Design and Parameter Sensitivity Analysis of a Heatsink for a Direct Cooled Power Module with a Ribbon Bonded Cooling Structure
Modelling and simulation of fuel cell/ supercapacitor passive hybrid vehicle system
Evaluation of fluctuating voltage topology with fuel cells and supercapacitors for automotive applications
Modeling and Experimental Verification of High-Frequency Inductive Brushless Exciter for Electrically Excited Synchronous Machines
Rotor Design of Line-Start Synchronous Reluctance Machine With Round Bars
Overvoltage Mitigation of Medium Voltage Electric Drives with Long Cables using Multilevel-Converters and Passive Filters
Design and Stray Field Evaluation of Inductive Power Transfer in Electric Vehicle Charging
Design and Experimental Verification of a 48 V 20 kW Electrically Excited Synchronous Machine for Mild Hybrid Vehicles
Rotor Design of a Line-Start Synchronous Reluctance Machine with Respect to Induction Machine for Industrial Applications
Study of Voltage Spikes and Temperature Rise in Power Module Based Integrated Converter for 48 V 20 kW Electrically Excited Synchronous Machines
Commutation Torque-ripple Minimization for Brushless DC Motor Based on Quasi-Z-Source Inverter
Comparative Study of the Torque Ripple and Iron Losses of a Permanent Magnet Synchronous Generator Driven by Multilevel Converters
Comparisons of Concentrated and Distributed Winding PMSM in MV Power Generation
A Comparative Study of Fuel Cell Electric Vehicles Hybridization with Battery or Supercapacitor
Generator Speed Control and Experimental Verification of Tidal Undersea Kite Systems
Feed-Forward Control for Active Voltage Balancing in Electric Drives with Five-Level NPC Converters
DC Link Voltage Balancing Technique Utilizing Space Vector Control in SiC-based Five-Level Back-to-Back-Connected NPC Converters
Combined Voltage Balancing Techniques of the DC Link in Five-Level Medium Voltage NPC Back-to-Back Converters for Offshore Renewable Generation
Comparison of copper loss minimization and field current minimization for Electrically Excited Synchronous Motor in mild hybrid drives
Direct-on-line-start permanent-magnet-assisted synchronous reluctance machine with ferrite magnets
Sensorless control of a PMSM with a transmission system including shunt branches
High frequency exciter of electrically excited synchronous motors for vehicle applications
Study on filtering performance of soft magnetic composite inductors for switching harmonics in 3-phase 70 kW PWM converter systems
Grid and storage
Nät och elenergilager
Finite element analysis of end ring impedance in squirrel cage induction machines
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Showing 20 research projects
Development of high reliability motor drives for next generation propulsion applications (DORNA)
Development of efficient and environmental friendly LONG distance powertrain for heavy dUty trucks aNd coaches
Dynamic reconfiguration of vehicle battery systems
Trends in Energy Storage Technologies (TEST)
AI-assisted real-time digital twin for electric drivetrains
Electrification of marine urban transport systems - Pre-study charging
Electrification of marine urban transport systems - Charging Prestudy
Analysis and improvement of insulation systems in electric motors exposed to high switching frequency
Analysis and Improvement of Insulation System of Traction Motors Exposed to High-switching Frequency Converters
Analysis and improvement of traction motor insulation system exposed to high switching frequency converters
Modular inductive power transfer (IPT) for high power vehicle charging
iTEM - Integrated Transmission and Electric Motor
Propeller-integrated motor drive for electric medium size boats
Floating voltage fuel cell drive system
Integrated Modular Distributed Drivetrain for Electric/Hybrid Vehicles
Cost-effective drivetrains for fuel cell powered EVs
Integrerade drivsystem för elektriska fordon
Variable Flux Machine for electric vehicles
Power Take-Off System for a Subsea Tidal Kite (PowerKite)
SWC Skalbar sladdlös laddning