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玄根浩(Keun-Ho Hyun) 대한전기학회 2007 전기학회논문지 P Vol.56 No.1
In this paper, an robust adaptive backstepping controller is proposed for the speed control of separately excited DC motor in pure electric vehicles. A general electric drive train of PEV is conceptually rearrange to major subsystems as electric propulsion, energy source, and auxiliary subsystem and the load torque is modeled by considering the aerodynamic, rolling resistance and grading resistance. Armature and field resistance, damping coefficient and load torque are considered as uncertainties and noise generated at applying load torque to motor is also considered. It shows that the backstepping algorithm can be used to solve the problems of nonlinear system very well and robust controller can be designed without the variation of adaptive law. Simulation results are provided to demonstrate the effectiveness of the proposed controller.
Design of a Speed Controller for the Synchronous Motor in Electric Vehicle
현근호(Hyun Keun-Ho) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.10
In this paper, a robust adaptive backstepping controller will be proposed for the speed control of permanent magnet synchronous motors in using electrical vehicles. Stator resistance, damping coefficient, load torque are considered as uncertainties and noise generated at applying load torque to motor is also considered. It shows that the backstepping algorithm can be used to solve the problems of nonlinear system very well and robust controller can be designed without the variation of adaptive law. Simulation results are provided to demonstrate the effectiveness of the proposed controller.
Design of an Adaptive Controller for Steady voltage Characteristics of the Fuel Cell
Hyun Keun-Ho(현근호) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.11
In this paper, the dynamic models of a SOFC are rearranged. It consists of electrochemical model, thermal model, voltage equation and several loss equations. Experiment results of the real SOFC system are shown to evaluate the steady voltage characteristics. Control problems on tracking steady voltage by air flow is discussed and an adaptive controller is designed to withstand to the variation of stack current. Simulation is done to prove the solution of control algorithms.
현근호(Keun-Ho Hyun),가출현(Chul-Hyun Ka) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
In this paper, the dynamic models of SOFC are suggested. It consists of electrochemical model, thermal model, voltage equation and several loss equations. Control problems on tracking steady voltage by air flow is discussed and an adaptive controller is designed to withstand to the variation of stack current. Simulation is done to prove the solution of control algorithms.