Control of power electronic converters in microgrids

Presentación realizada en el marco del Proyecto: Seminario Internacional sobre Energías Renovables, ENERPY 2019, cuyo objetivo general era compartir con la comunidad científica, académica y la sociedad en general los últimos avances en el área de la ingeniería aplicada a las energías renovables y eficiencia energética.CONACYT - Consejo Nacional de Ciencias y TecnologíaPROCIENCI

Speed control of a five-phase induction motor drive using modified super-twisting algorithm

The present work proposes an alternative for the inner current control based on the modified super-twisting algorithm with time delay estimation. Simulation results were carried out to verify the performance of the proposed robust control strategy for a five-phase induction motor drive. A stability analysis is also presented.CONACYT – Consejo Nacional de Ciencia y TecnologíaPROCIENCI

Nonlinear backstepping with time delay estimation for six-phase induction machine

In this paper, a robust nonlinear stator currents controller based on a known nonlinear technique is proposed for a six-phase induction machine. First of all, a proportional-integral regulator is used in an outer loop to control the speed. Secondly, the inner loop based on a nonlinear method that combines the nonlinear backstepping control scheme with the time delay estimation consists of controlling the stator currents. The chosen time delay estimation method can approximate the unmeasurable rotor current while the nonlinear backstepping can achieve good tracking performances. The stability analysis of the current closed-loop error dynamics is provided based on a recursive Lyapunov function. Numerical simulations have been conducted to demonstrate the efficiency and the performance of the developed nonlinear control method for the asymmetrical six-phase induction machine.CONACYT – Consejo Nacional de Ciencia y TecnologíaPROCIENCI

Speed-sensorless predictive current control for a dual three-phase induction machine using a kalman filter for electrial vehicle applications

For a electrical application involving induction machines, such as the electrical propulsion drive of an electric vehicle, the rotor current cannot be measured, so it must be estimated. This paper describes the rotor current estimation through reduced order estimator known as Kalman filter to apply a sensorless speed control of dual three-phase induction machines by using an inner loop of model-based predictive control. Finally, simulation results are provided to show the efficiency of the proposed sensorless speed control algorithm, thus concluding that the system can work properly without the speed sensor.CONACYT – Consejo Nacional de Ciencia y TecnologíaPROCIENCI

A speed-sensorless predictive current control of multiphase induction machines using a kalman filter for rotor current estimator

In electrical drive applications based on induction machines, such as the propulsion drive of an electric vehicle, the rotor currents cannot be measured, so it needs to be estimated. This paper describes the rotor currents estimation through reduced order estimator known as Kalman filter to apply a speed-sensorless control of dual three-phase induction machines by applying a current inner loop based on the model predictive control. Simulation results are shown to demonstrate the efficiency of the proposed speed-sensorless control technique, thus concluding that the system can work properly without the speed sensor.CONACYT – Consejo Nacional de Ciencia y TecnologíaPROCIENCI