Sensorless control scheme based on sliding modes for interior permanent magnet synchronous motor

Abstract

In this article, a sensorless speed control design for the interior permanent magnet synchronous motor based on sliding mode approach is proposed. The control objective is to drive the rotor speed to desired reference despite load torque disturbances and parameter uncertainties. The proposed control strategy combines a Sliding Mode Controller with an Adaptive Interconnected Observer design based on sliding mode techniques, which allows to estimate the rotor speed, the stator resistance and the load torque. Furthermore, experimental results, including a comparative study against schemes from literature, illustrate the robustness and performance of proposed approach.

Sensorless control of permanent magnet synchronous motor based on adaptive back-EMF observer

“…Many scholars have proposed many methods to estimate the rotor speed and position based on the sensorless control of permanent magnet synchronous motors and have made significant progress. Alvaro Mendoza et al 7 proposed a sliding mode approach based on a built-in permanent magnet synchronous motor speed regulation design without a speed sensor to achieve rotor speed and stator resistance estimation. They proved that the proposed method has better robustness and control performance.…”