Speed control of sensorless PMSM drive based on EKF optimized by variable scale chaotic particle swarm optimization
Qiang Zhao,
Zihan Zhao,
Zhao Yang
et al.
Abstract:To investigate the parameter characteristics of permanent magnet synchronous motor (PMSM) speed sensorless vector control system and capture the noise matrices quickly and accurately in the speed estimation process of the extended Kalman filter for PMSM, The recursive least square method with forgetting factor is proposed to determine the actual parameters of the system, and then a new variable-scale chaotic particle swarm optimization (VCPSO) algorithm is put forward to accurately obtain the system noise matr… Show more
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