Five-phase induction machine parameter identification using PSO and standstill techniques

Multiphase variable-speed drives' advantages such as fault tolerance and better power-per-phase splitting make these electromagnetic devices suitable for high reliability applications. However, the applied control techniques require accurate knowledge of the electrical parameters of the machine. Although a large number of modulation and control strategies have been proposed, little work has been focused on the estimation of these parameters. This paper proposes an off-line procedure to estimate the parameters of five-phase induction machines. The proposed method is based on standstill time-domain tests and the particle swarm optimization (PSO) technique, and it can be easily extended to any number of phases.