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Keywords = single-shunt register

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13 pages, 7096 KB  
Article
Hybrid PWM Control for Regulating the High-Speed Operation of BLDC Motors and Expanding the Current Sensing Range of DC-link Single-Shunt
by Nam Huh, Hyung-Seok Park, Man Hyung Lee and Jang-Mok Kim
Energies 2019, 12(22), 4347; https://doi.org/10.3390/en12224347 - 15 Nov 2019
Cited by 16 | Viewed by 7544
Abstract
This study developed a hybrid pulse width modulation (PWM) control method intended for use in a high-speed brushless dc (BLDC) motor drive system that uses DC-link single-shunt current measurement. The method is designed to regulate rapid operation and expand the current sensing range [...] Read more.
This study developed a hybrid pulse width modulation (PWM) control method intended for use in a high-speed brushless dc (BLDC) motor drive system that uses DC-link single-shunt current measurement. The method is designed to regulate rapid operation and expand the current sensing range of the aforementioned system and measurement, respectively. The operating characteristics of most typical PWM methods for BLDC motors were analyzed, after which, a PWM approach suitable for high-speed operation was identified. On the basis of the selected approach, the measurable range of DC-link single-shunt current was examined mathematically to determine a PWM method that is advantageous for current sensing. The results of the two analyses were used as guidance in formulating the proposed hybrid PWM control algorithm. Finally, the PWM method put forward in this work was verified through experimentation. Full article
(This article belongs to the Special Issue Power Electronics and AC Machine Drive System)
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