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Parameter Identification of BLDC Motor Using Electromechanical Tests and Recursive Least-Squares Algorithm: Experimental Validation

2021; Multidisciplinary Digital Publishing Institute; Volume: 10; Issue: 7 Linguagem: Inglês

10.3390/act10070143

2076-0825

J. Jimenez-Gonzalez, Felipe González-Montañez, V. M. Jimenez-Mondragon, Jesús Licéaga-Castro, R. Escarela-Pérez, Juan C. Olivares-Galván,

Control Systems and Identification

In this article, the parameter identification of a brushless DC motor (BLDC) is presented. The approach here presented is based on a direct identification considering a three-phase line-to-line voltage electromagnetic torque as function of the electric currents and rotor speed. The estimation is divided into two stages. First, the electrical parameters are estimated by well-known no-load and DC tests. Consequently, estimation of mechanical parameters is performed using a recursive Least Square Algorithm. The proposed approach is validated by comparing model responses to motor real time responses. Additionally, the design, digital simulation and real time implementation of a PI rotor speed controller, based on the estimated model, validate the identification proposal presented here.