Sensorless H∞ speed-tracking synthesis for surface-mount permanent magnet synchronous motor

Ramón Ramírez-Villalobos; Luis T Aguilar; Luis N Coria

doi:10.1016/j.isatra.2017.01.007

Sensorless H_∞ speed-tracking synthesis for surface-mount permanent magnet synchronous motor

ISA Trans. 2017 Mar:67:140-150. doi: 10.1016/j.isatra.2017.01.007. Epub 2017 Jan 13.

Authors

Ramón Ramírez-Villalobos¹, Luis T Aguilar², Luis N Coria³

Affiliations

¹ Tecnológico Nacional de México - Instituto Tecnológico de Tijuana, Calz. del Tecnológico S/N, Tomas Aquino, 22414 Tijuana, BC, México. Electronic address: ramon.ramirez@tectijuana.edu.mx.
² Instituto Politécnico Nacional - CITEDI, Ave. Instituto Politécnico Nacional 1310, Nueva Tijuana, Tijuana, BC 22435, Mexico. Electronic address: laguilarb@ipn.mx.
³ Tecnológico Nacional de México - Instituto Tecnológico de Tijuana, Calz. del Tecnológico S/N, Tomas Aquino, 22414 Tijuana, BC, México. Electronic address: luis.coria@gmail.com.

PMID: 28093202
DOI: 10.1016/j.isatra.2017.01.007

Abstract

In this paper, a sensorless speed tracking control is proposed for a surface-mount permanent magnet synchronous motor by using a nonlinear H_∞-controller via stator currents measurements for feedback. An output feedback nonlinear H_∞-controller was designed such that the undisturbed system is uniformly asymptotically stable around the desired speed reference, while also the effects of external vanishing and non-vanishing disturbances, noise, and input backlash were attenuated locally. The rotor position was calculated from the causal dynamic output feedback compensator and from the desired speed reference. The existence of the proper solutions of the perturbed differential Riccati equations ensures stabilizability and detectability of the control system. The efficiency of the proposed sensorless controller was supported by numerical simulations.

Keywords: Nonlinear H∞ control; Permanent magnet synchronous motor; Sensorless speed-tracking synthesis.