Sensorless Synchronous Reluctance Generator Control Based on q Axis Estimated Current

This paper presents a sensorless Synchronous Reluctance Machine used as a generator with a different method for rotor position estimator. The estimator is based on the machine model and the error between measured q-axis current versus estimated current. The rotor position error is analyzed in various running conditions considering uncertain machine parameters. Stability of the rotor position estimator has been approached using model linearization by small signal deviations. Simulation and experimental results validate the theoretical assumptions.