Effects of closed-loop commutation delay for various types of motors

P. Krishnamurthy, Farshad Khorrami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In a recent paper [1], we reported the occurrence of interesting phenomena that were observed experimentally during closed-loop commutation experiments with a planar (Sawyer) stepper motor and showed that the phenomena were caused due to time delays in the sensor and actuator. The observed dynamical phenomena included introduction of multiple solution trajectories with sensitive dependence on initial conditions (possibly yielding steady-state velocities with opposite signs) and saturation of velocity. We also showed that these phenomena can be exploited to estimate parameters such as closed-loop delay, sensor offset, and toothpitch. The analysis in [1] was applicable to a permanent-magnet stepper motor (and any other motor that shares the same form of the mechanical dynamics and torque expression). In this paper, we continue the work of [1] and investigate the effect of closed-loop commutation delay on other types of motors including variable reluctance (VR) stepper motors, brushless DC (BLDC) motors, and three-axis planar Sawyer stepper motors.

Original languageEnglish (US)
Title of host publicationProceedings of the 45th IEEE Conference on Decision and Control 2006, CDC
Pages1227-1232
Number of pages6
StatePublished - 2006
Event45th IEEE Conference on Decision and Control 2006, CDC - San Diego, CA, United States
Duration: Dec 13 2006Dec 15 2006

Other

Other45th IEEE Conference on Decision and Control 2006, CDC
CountryUnited States
CitySan Diego, CA
Period12/13/0612/15/06

Fingerprint

Electric commutation
Brushless DC motors
Reluctance motors
Sensors
Permanent magnets
Time delay
Actuators
Torque
Trajectories
Experiments

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Safety, Risk, Reliability and Quality
  • Chemical Health and Safety

Cite this

Krishnamurthy, P., & Khorrami, F. (2006). Effects of closed-loop commutation delay for various types of motors. In Proceedings of the 45th IEEE Conference on Decision and Control 2006, CDC (pp. 1227-1232). [4178068]

Effects of closed-loop commutation delay for various types of motors. / Krishnamurthy, P.; Khorrami, Farshad.

Proceedings of the 45th IEEE Conference on Decision and Control 2006, CDC. 2006. p. 1227-1232 4178068.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Krishnamurthy, P & Khorrami, F 2006, Effects of closed-loop commutation delay for various types of motors. in Proceedings of the 45th IEEE Conference on Decision and Control 2006, CDC., 4178068, pp. 1227-1232, 45th IEEE Conference on Decision and Control 2006, CDC, San Diego, CA, United States, 12/13/06.
Krishnamurthy P, Khorrami F. Effects of closed-loop commutation delay for various types of motors. In Proceedings of the 45th IEEE Conference on Decision and Control 2006, CDC. 2006. p. 1227-1232. 4178068
Krishnamurthy, P. ; Khorrami, Farshad. / Effects of closed-loop commutation delay for various types of motors. Proceedings of the 45th IEEE Conference on Decision and Control 2006, CDC. 2006. pp. 1227-1232
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