2019/05/02 by Roméo Ortega, Bowen Yi, Ortega, Romeo +7
Engineering · #Electric Motor Design and Analysis #FOS: Electrical engineering #Iterative Learning Control Systems #Sensorless Control of Electric Motors #Systems and Control (eess.SY) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.1905.00833
openalex publication_date 2019/05/02 · openalex created_date 2022/07/29 · openalex updated_date 2026/07/28
The design of a position observer for the interior permanent magnet\nsynchronous motor is a challenging problem that, in spite of many research\nefforts, remained open for a long time. In this paper we present the first\nglobally exponentially convergent solution to it, assuming that the saliency is\nnot too large. As expected in all observer tasks, a persistency of excitation\ncondition is imposed. Conditions on the operation of the motor, under which it\nis verified, are given. In particular, it is shown that at rotor\nstandstill---when the system is not observable---it is possible to inject a\nprobing signal to enforce the persistent excitation condition. The high\nperformance of the proposed observer, in standstill and high speed regions, is\nverified by extensive series of test-runs on an experimental setup.\n