Sliding Mode‐Based Position Sensor Fault‐Tolerant Control of PMSG Stator Currents

ABSTRACT This article presents an improved position sensor fault‐tolerant control (IPS‐FTC) of the stator current components of the permanent magnet synchronous generator (PMSG). It ensures the generator's operation in post‐fault conditions, which are required for uninterruptible power injection by renewable energy conversion systems (RECSs). The proposed method is based on sliding mode (SM) theory and overcomes the drawbacks of traditional position sensor fault‐tolerant control (PFTC) methods. The developed approach is relatively simple, direct, and robust versus non‐modelled quantities. Furthermore, it does not require stator voltage sensors, compared to other developed SM control techniques. The stability and convergence of the proposed approach are proven by simulation and experimental results.