This paper investigates the relationship between current, back electromotive force (back-EMF), and torque for permanent-magnet brushless DC (PM BLDC) motors under advanced commutation control from the perspective of harmonics. Considering that the phase current is the influencing factor of both torque and torque ripple, this paper firstly analyzes the effects of advanced commutation on phase current and current harmonics. And then, based on the harmonics of the phase current and back-EMF, the torque harmonic expressions are deduced. The expressions reveal the relationship of harmonic order between the torque, phase current, and back-EMF and highlight the different contribution of individual torque harmonic to the total torque ripple. Finally, the proposed harmonic analysis method is verified by the experiments with different speed and load conditions.
from #AlexandrosSfakianakis via Alexandros G.Sfakianakis on Inoreader http://ift.tt/2GAZi6Q
via IFTTT
Εγγραφή σε:
Σχόλια ανάρτησης (Atom)
Δημοφιλείς αναρτήσεις
-
Publication date: Available online 4 January 2018 Source: European Journal of Radiology Author(s): Peiyao Zhang, Jing Wang, Qin Xu, Zhen...
-
Cover letters are attached to your resume when you apply for a job. The purpose of cover letters is to persuade the employer that you are we...
-
Need Industrial relations advice? Unfair dismissals laws? Discrimination in the workplace? Sexual harassment? We can help. AWNA is Australia...
-
Tetracycline Repressors (TetRs) modulate multi-drug efflux pathways in several pathogenic bacteria. In Streptomyces, they additionally regul...
-
Participant Experiences of Attending a Community CBT Workshop for Insomnia: A Qualitative Six-Year Follow-Up. Behav Sleep Med. 2017 Ap...
-
Persuasive speech ideas - 50+ provoking, fresh ideas to help you find the persuasive speech topic best suited to you and your audience. fr...
-
Description A Caucasian boy aged 5 years presented with acute onset of a non-tender, palpable purpuric rash to his lower limbs, preceded by ...
-
Publication date: Available online 10 February 2017 Source: Brachytherapy Author(s): M.F. Jamaluddin, S. Ghosh, M.P. Waine, M. Tavakoli, J...
-
Abstract Background Tracheoesophageal puncture is an effective and reliable method for voice restoration after total laryngectomy that m...
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου