Dong-Hee Lee

About

Dong-Hee Lee is a leading researcher in advanced motor drive and servo control systems, with a primary focus on enhancing the performance and precision of electric drives used in robotics, industrial automation, and medical applications. His work centers on solving critical challenges in nonlinear friction compensation, high-speed motor control, and torque regulation. Notably, his 2008 paper on a dual speed control scheme for servo drives, which addresses nonlinear friction in ball-screw and timing-belt systems, has garnered 41 citations, reflecting its foundational impact on improving motion accuracy in factory automation and numerical control. Lee has also pioneered direct torque control (DTC) methods for Permanent Magnet Synchronous Motors (PMSMs), achieving high-performance torque regulation with pulse-width modulation (PWM) approaches. Additionally, he developed a wide-range speed control method for compact high-speed Brushless DC Motors (BLDCMs) using a phase-locked loop (PLL) strategy, enabling precise, calculation-free speed regulation for demanding robotic and medical tools. Through these contributions, Lee has advanced the reliability and efficiency of modern servo and motor drive systems, making him a key figure in the evolution of high-performance industrial and robotic control technologies.

Research Focus

Key Achievements

Top Papers

1. 1
   Dual Speed Control Scheme of Servo Drive System for a Nonlinear Friction Compensation

   41 citations · 2008
2. 2
   An high performance direct torque control method with PWM approach of PMSMs

   3 citations · 2014
3. 3
   A wide range speed control method of compact high speed BLDCM using PLL approach

   3 citations · 2008

Key Collaborators

Contact & Links