Results 31 to 40 of about 95,793 (271)

Permanent-magnet brushless machines with unequal tooth widths and similar slot and pole numbers [PDF]

open access: yes, 2005
This paper presents a comparative study of three-phase permanent-magnet brushless machines in which the slot and pole numbers are similar, with reference to conventional brushless dc machines in which the ratio of the slot number to pole number is ...
Howe, D., Ishak, D., Zhu, Z.Q.
core   +1 more source

Influence of design parameters on the starting torque of a single-phase PM brushless DC motor [PDF]

open access: yes, 2000
The starting torque of a single-phase permanent magnet brushless DC motor is investigated, for both radial and parallel magnetization. Finite element analysis is used to assess the relative merits of alternative methods of introducing the required air ...
Bentouati, S., Howe, D., Zhu, Z.Q.
core   +1 more source

Boost converter fed high performance BLDC drive for solar PV array powered air cooling system [PDF]

open access: yes, 2017
This paper proposes the utilization of a DC-DC boost converter as a mediator between a Solar Photovoltaic (SPV) array and the Voltage Source Inverters (VSI) in an SPV array powered air cooling system to attain maximum efficiency.
Depuru, Shobha Rani   +1 more
core   +2 more sources

Design of LLC resonant converter with silicon carbide MOSFET switches and nonlinear adaptive sliding controller for brushless DC motor system

open access: yesElectrical engineering & Electromechanics, 2022
Introduction. The high voltage gain DC-DC converters are increasingly used in many power electronics application systems, due to their benefits of increased voltage output, reduced noise contents, uninterrupted power supply, and ensured system ...
G. Merlin Suba, M. Kumaresan
doaj   +1 more source

A Sensorless Brushless DC Motor System.

open access: yesIEEJ Transactions on Industry Applications, 1991
AbstractThis paper describes a brushless dc motor system without position or speed sensor. The brushless motor consists of a permanent magnet synchronous motor and a voltage‐source inverter capable of controlling the amplitude and frequency of voltage.
Satoshi Ogasawara   +2 more
openaire   +2 more sources

Permanent magnet brushless drives [PDF]

open access: yes, 1998
The purpose of this paper is to present an optimal efficiency control scheme for constant power operation of phase decoupling (PD) PM brushless DC motor drives.
Chan, CC   +4 more
core   +1 more source

Design of torque system for electric bicycle based on fuzzy PID

open access: yesThe Journal of Engineering, 2019
This article analyses the structure and working principle of the brushless DC motor, the advantages and disadvantages of PID regulation and fuzzy control are analysed as well, and puts forward the fuzzy PID motor control technology with both advantages ...
Yunhong Zheng   +2 more
doaj   +1 more source

Brushless dc motor with large air gap

open access: yesElectrical Engineering in Japan, 1997
The authors propose a new brushless dc motor for pumps, with a large air gap of 8 mm, compared with the conventional gap of 1 mm. The conventional pump system is composed of an induction motor, a magnetic coupling, and a magnetic rotor with vane. This rotor receives power from the magnetic coupling.
Yoshinobu Nakamura   +2 more
openaire   +2 more sources

Fuzzy PID Control of Brushless Motors in Positive Pressure Respiratory Protective Masks

open access: yesJournal of Harbin University of Science and Technology
Positive pressure respiratory protection mask is used as individual protective equipment for health care workers to protect against the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2).
ZHAO Xintong   +3 more
doaj   +1 more source

FIELD ORIENTED CONTROL ( FOC) FOR BLDC MOTOR [PDF]

open access: yesFiabilitate şi Durabilitate, 2021
The advent of DC or AC motors has revolutionized the industry. Over time the engine characteristics have been improved but the existence of brushes is still the major disadvantage.
Florin GROFU
doaj  

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