Finite Position Set Sensorless Predictive Torque and Active Flux Control of IPMSM Using an Enhanced Binary Search
Samuel Osei Fobi, Sodiq Agoro, Rajib Mikail, Iqbal Husain · 2024
Predictive torque and active flux control (PTAFC) provides a fast response and further simplifies the deadbeat torque control for interior permanent magnet synchronous motors (IPMSM). However, it requires position information for its implementation, which is typically obtained from expensive sensors. Position sensorless strategies provide reliable and costeffective solutions. The major challenge of traditional position estimators is tuning the observer parameters. Finite position set (FPS) sensorless control is a recent alternative method that eliminates the parameter tuning problem. However, it is computationally expensive. This paper proposes an enhanced binary search (EBS) to reduce the computational burden and provide speed regulation with high performance when applied to the PTAFC of an IPMSM. The proposed method is validated through simulation and experiments.