Effective model predictive instantaneous power control for a sensorless induction motor drive

Abstract

This paper presents an effective sensorless model predictive instantaneous power control (MP IPC) technique for an induction motor (IM) drive. The proposed control method is considered as an alternative control approach for classic field-oriented control (FOC) and direct torque control (DTC) techniques, with merits of simple implementation and avoiding the usage of PI current controllers and pulse width modulation (PWM) for voltage control purposes. An effective sensorless approach for the purpose of speed and rotor position estimations is proposed, which utilises the predictive feature of the proposed MP IPC technique. Matlab simulation is firstly used to validate the effectiveness of the proposed control topology, and then a dSpace1104 prototyping control board is used to implement the approach experimentally. Obtained results confirm the feasibility of proposed control technique in achieving decoupled control of instantaneous active and reactive powers flow through the IM drive, which consequently accompanied with decoupled control of torque and flux.