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Physical Modeling of SiC Power Diodes with Empirical Approximation
Hernandez, Leobardo,Claudio, Abraham,Rodriguez, Marco A.,Ponce, Mario,Tapia, Alejandro The Korean Institute of Power Electronics 2011 JOURNAL OF POWER ELECTRONICS Vol.11 No.3
This article presents the development of a model for SiC power diodes based on the physics of the semiconductor. The model is able to simulate the behavior of the dynamics of the charges in the N- region based on the stored charge inside the SiC power diode, depending on the working regime of the device (turn-on, on-state, and turn-off). The optimal individual calculation of the ambipolar diffusion length for every phase of commutation allows for solving the ambipolar diffusion equation (ADE) using a very simple approach. By means of this methodology development a set of differential equations that models the main physical phenomena associated with the semiconductor power device are obtained. The model is developed in Pspice with acceptable simulation times and without convergence problems during its implementation.
Physical Modeling of SiC Power Diodes with Empirical Approximation
Leobardo Hern´andez,Abraham Claudio,Marco A. Rodriguez,Mario Ponce,Alejandro Tapia 전력전자학회 2011 JOURNAL OF POWER ELECTRONICS Vol.11 No.3
This article presents the development of a model for SiC power diodes based on the physics of the semiconductor. The model is able to simulate the behavior of the dynamics of the charges in the N- region based on the stored charge inside the SiC power diode, depending on the working regime of the device (turn-on, on-state, and turn-off). The optimal individual calculation of the ambipolar diffusion length for every phase of commutation allows for solving the ambipolar diffusion equation (ADE) using a very simple approach. By means of this methodology development a set of differential equations that models the main physical phenomena associated with the semiconductor power device are obtained. The model is developed in Pspice with acceptable simulation times and without convergence problems during its implementation.
Robust Nonlinear Control of AC Brushless Motor for Electric Vehicles Application
Diego Langarica-Cordoba,Gerardo V. Guerrero-Ramirez,Abraham Claudio-Sanchez,Miguel A. Duran-Fonseca,Manuel Adam-Medina,Carlos-Manuel Astorga-Zaragoza 전력전자학회 2011 JOURNAL OF POWER ELECTRONICS Vol.11 No.4
This article proposes a robust nonlinear control based on Lyapunov’s redesign, whose purpose is to deal with parametric uncertainty in the resistance of the motor windings. The robust controller design is based on the passivity properties of the motor, as well as energy shaping and damping injection. The application of this control technique is focused on electric vehicles mainly formed by a battery bank, a power inverter, an AC brushless motor and the mechanical transmission. The sine PWM technique is used to trigger the switching devices of inverter. The results were obtained from simulation, where is shown that robust control makes a proper tracking of electromagnetic torque.
Robust Nonlinear Control of AC Brushless Motor for Electric Vehicles Application
Langarica-Cordoba, Diego,Guerrero-Ramirez, Gerardo V.,Claudio-Sanchez, Abraham,Duran-Fonseca, Miguel A.,Adam-Medina, Manuel,Astorga-Zaragoza, Carlos-Manuel The Korean Institute of Power Electronics 2011 JOURNAL OF POWER ELECTRONICS Vol.11 No.4
This article proposes a robust nonlinear control based on Lyapunov's redesign, whose purpose is to deal with parametric uncertainty in the resistance of the motor windings. The robust controller design is based on the passivity properties of the motor, as well as energy shaping and damping injection. The application of this control technique is focused on electric vehicles mainly formed by a battery bank, a power inverter, an AC brushless motor and the mechanical transmission. The sine PWM technique is used to trigger the switching devices of inverter. The results were obtained from simulation, where is shown that robust control makes a proper tracking of electromagnetic torque.