PMSM (Permanent-Magnet Synchronous Motor) Control
Robust control based on DOB (Disturbance Observer)
Among various types of motors, the permanent-magnet-synchronous motor (PMSM) is dominating for high performance applications due to its high energy-volume ratio, low noise, and durability. Our research is about how to control a PMSM more efficiently and precisely. Especially, the application of the disturbance observer based control shows robust performance in the automotive application.
 Kim, Yonghun, Kyung-Soo Kim, and Soohyun Kim. "A novel disturbance observer based robust current-control for a PMSM drive system." Decision and Control (CDC), 2015 IEEE 54th Annual Conference on. IEEE, 2015.
Real-time optimal torque control
A new method is proposed for the real-time estimation of the full parameters of a permanent magnet synchronous motor (PMSM) that is based on the stator current ripple model. By introducing the stator current ripple model together with the known two state equations for the d- and q-axes currents, The rank deficiency problem is resolved, thus enabling real-time full parameter estimation even in the steady state. A signal processing technique for removing adverse effects from noises and uncertainties existing in the stator current ripple measurement is also required.
 Choi, Kyunghwan, et al. "Using the stator current ripple model for real-time estimation of full parameters of a permanent magnet synchronous motor." IEEE Access 7 (2019): 33369-33379.