Filtering-based accelerated estimation approach for generalized time-varying systems with disturbances and colored noises

Y Ji, A Jiang - IEEE Transactions on Circuits and Systems II …, 2022 - ieeexplore.ieee.org
This brief studies the parameter estimation problem of a generalized time-varying system by
using a novel gradient descent algorithm. The time-varying parameters are estimated by the …

Parameter Estimation Method for Generalized Time-varying Systems With Colored Noise Based on the Hierarchical Principle

S Li, Y Ji, A Jiang - International Journal of Control, Automation and …, 2024 - Springer
For generalized time-varying systems with colored noise, the difficulty of identification lies in
time-varying parameters and colored noise. The recursive estimation problem of a controlled …

Recent challenges and reviews on sensorless, PWM techniques and controller possibilities of permanent magnet motors for electric vehicle applications

V Krishnakumar, P Anbarasan… - … Journal of Ambient …, 2024 - Taylor & Francis
Permanent Magnet Motor (PMM) demand is burgeoning with the trend of electro mobility
opportunities flushed to reach sustainability in the world electric drive market. This paper …

A new switching strategy for improving efficiency and thermal distribution of a three-port converter for solar DC stand-alone system

N Surulivel, D Debnath - … on Circuits and Systems II: Express …, 2021 - ieeexplore.ieee.org
This brief proposes a new switching scheme for a recently published three-port converter to
make it suitable for Photo-Voltaic (PV) fed dc stand-alone system with battery backup. The …

Nonlinear output-feedback speed servo systems through active damping injection and position filtering approaches without current feedback

DH Lee, SK Kim, KB Lee - Journal of Power Electronics, 2022 - Springer
This paper proposes a novel current feedback-free speed regulation method for servo
systems subject to system parameter and load uncertainties. The proposed solution has two …

Observer-Based Single-Loop Feedback Systems for Speed Servo Applications via Critical Damping Injection Approach

SK Kim, S Lim, CK Ahn - IEEE Transactions on Industrial …, 2023 - ieeexplore.ieee.org
This article presents an output-feedback solution involving the observer to the speed control
problem in servo systems by eliminating the true system model and reducing the number of …

Observer-based order-reduction speed control for converter-fed BLDC motors with current-loop adaptation

SK Kim, S Lim, CK Ahn - … on Circuits and Systems II: Express …, 2023 - ieeexplore.ieee.org
This brief considers the speed control problem for brushless DC motors (BLDCMs) fed by a
buck converter subject to the BLDCM parameter and load uncertainty. This brief makes three …

Model-independent observer-based current Sensorless speed servo systems with adaptive feedback gain

S Lim, SK Kim, KC Kim - Actuators, 2022 - mdpi.com
This study proposes a solution to the speed control problem of servo machines in the form of
multi-loop current sensorless control with a reduction in the system model dependence level …

Output-Feedback Position Tracking Servo System with Feedback Gain Learning Mechanism via Order-Reduction Speed-Error-Stabilization Approach

SH You, SK Kim, HD Choi - Actuators, 2021 - mdpi.com
This paper presents a novel trajectory-tracking technique for servo systems treating only the
position measurement as the output subject to practical concerns: system parameter and …

Model-free PZC filter-based multi-loop speed controller for servo drives

HS Lim, SK Kim, KB Lee - Journal of Power Electronics, 2024 - Springer
This paper derives an advanced multi-loop speed feedback system equipped with model-
free pole-zero cancellation (PZC) filters for the position and current measurements of servo …