Features of the Using of Electronic I2T Method of Thermal Protection of Brushless Motors Under Intermittent Operation

Authors

  • L.V. Gannel Nova measuring instrument
  • D.A. Rosso Nova measuring instrument

DOI:

https://doi.org/10.17213/0136-3360-2022-1-77-81

Keywords:

overheating protection, intermittent mode, electronic I2T method, current RMS, sampling time interval, motor thermal model

Abstract

The issues of overheating protection of brushless motors for intermittent operation are considered. Due to the insufficient efficiency of built-in (in the motors) thermal sensors, the use of an electronic I2T method of thermal protection has been proposed. The features of the implementation of the electronic method of thermal protection by modern motion controllers are considered. It is shown that the use of this method requires preliminary experiments directly on the mechanism. Recommendations are given for the choice of key thermal parameters of brushless motor for user application. The results of the functioning of thermal protection in the intermittent mode are presented.

Author Biographies

L.V. Gannel, Nova measuring instrument

Candidate of Technical Sciences, Electrical Engineer Nova measuring instrument

D.A. Rosso, Nova measuring instrument

Electrical Engineer Nova measuring instrument

References

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Richard Welch Jr. Recognizing motor temperature sensor limitations // Machine Design. 2010. Aug 01.

Richard Welch Jr. Calculating a practical hotspot safety margin//Motion System Design. June 1, 2010.

Protecting Motors against overload conditions using “I squared T” methods. Application Note: IsqT Algorithm. Copley Controls Corp. URL: http://www.copleycontrols.com/wp-content/uploads/2018/02/IsqT-Algorithm-Application-Notes.pdf (дата обращения 15.01.2022)

Dave Kaiser. Advances in Digital Servo Drive Motor Protection // Machine Design June 1, 2003. Oct. 28, 2004.

Сонных М., Ганнель Л. Основные технические особенности вентильных двигателей // РИТМ. 2010. № 10. С. 14 - 16.

Danielle Collins. Why RMS torque is important for motor sizing // Linear motion tips. July 27, 2015. URL:https://www.linearmotiontips.com/why-rms-torque-is-important-for-motor-sizing/(дата обращения 15.01.2022)

Published

2022-02-15

How to Cite

(1)
Gannel, L.; Rosso, D. Features of the Using of Electronic I2T Method of Thermal Protection of Brushless Motors Under Intermittent Operation. electromeh 2022, 65, 77-81.

Issue

Section

Articles