- Title
- Thermal Protection of Piezoelectric Actuators Using Complex Electrical Power Measurements and Simplified Thermal Models
- Creator
- Yong, Yuen K.; Eielsen, Arnfinn A.; Fleming, Andrew J.
- Relation
- IEEE/ASME Transactions on Mechatronics Vol. 29, Issue 1, p. 798-800
- Publisher Link
- http://dx.doi.org/10.1109/tmech.2023.3277437
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- journal article
- Date
- 2024
- Description
- This article describes a method for estimating the temperature of high-power piezoelectric actuators when a direct temperature measurement is impractical. The heat flow is estimated from the real component of the electrical power; then, the temperature is estimated by a transfer function that approximates the thermal response of the system. The transfer function can be derived analytically from a lumped-element approximation or calibrated experimentally by using a system identification method. The proposed method is demonstrated on a piezoelectric stack actuator used in a high-speed nanopositioning device. A second-order transfer function estimates the temperature to within 3 ∘ C of a reference measurement for a range of operating conditions. The proposed method is suitable for protecting piezoelectric actuators in applications where direct temperature measurement is impractical, for example, due to space or wiring constraints.
- Subject
- high speed; piezoelectric actuators; thermal protection; thermal model
- Identifier
- http://hdl.handle.net/1959.13/1505838
- Identifier
- uon:55757
- Identifier
- ISSN:1083-4435
- Language
- eng
- Reviewed
- Hits: 28
- Visitors: 28
- Downloads: 0