Results 61 to 70 of about 1,059 (196)
This work focuses on the small Bearingless Brushless DC Motor (BL-BLDCM), to solve the problems, such as larger commutation torque ripple and difficult solution of air-gap magnetic field, a novel BL-BLDCM structure with like-tangential parallel ...
Wenshao Bu +3 more
doaj +1 more source
Electric machines built according to the modular principle – with several three-phase windings on a stator – are a new direction of modern electromechanics, because they have a number of advantages compared to traditional single-winding machines.
І.З. Щур +2 more
doaj +1 more source
This article introduces an L‐shaped modular consequent‐pole PM machine with an asymmetrical hybrid pole structure (AHPLM‐CPM) for in‐hub e‐bikes, enhancing PM utilisation and flux‐focusing while reducing leakage flux. Multi‐objective optimisation minimises torque ripple and maximises torque, yielding an 80.4% higher PM utilisation ratio and 50% lower ...
Mohammadreza Naeimi +2 more
wiley +1 more source
Zero overshoot and fast transient response using a fuzzy logic controller [PDF]
In some industrial process control systems it is desirable not to allow an overshoot beyond the setpoint or a threshold, this could be a safety constraint or the requirement of the system.
Mehrdadi, Bruce, Saeed, Bakhtiar I.
core
Perancangan dan Implementasi Sistem Pengaturan Kecepatan Motor Arus Searah tanpa Sikat Menggunakan Metode PID-Robust [PDF]
BLDCM merupakan suatu jenis motor sinkron yang artinya medan magnet yang dihasilkan oleh stator dan medan magnet yang dihasilkan rotor berputar di frekuensi yang sama.
Istiananda, A. F. (Ahmad)
core
An incremental predictive control strategy based on unipolar pulse width modulation (PWM) is proposed in the non‐commutation interval to double the current ripple frequency, which can reduce the current ripple. On this basis, the prediction equations of adjacent control periods are subtracted to eliminate the influence of non‐ideal back‐electromotive ...
Chong Zeng +3 more
wiley +1 more source
QPRC-Based DC-Link Stabilization of IFZ-Converter Applied to Suppress CCR in BLDCM Drives
The brushless dc motor (BLDCM) drives are adversely affected by commutation current ripple (CCR), which leads to increased torque ripple and degraded performance. The dc-dc converter based-BLDCM drive topology is widely preferred to suppress CCRs.
Dileep Kumar +3 more
doaj +1 more source
Power electronics elements lifetime in BLDCM drives can be affected due to power losses by conduction and switching during their operation. These losses normally aren´t consider in the design of controller, hence the controller lifetime is reduced or ...
M. García López +4 more
doaj +1 more source
Leakage magnetic field of BLDCM based on Comsol multiphysics [PDF]
The measurement of geomagnetic field conducted by underwater robot is widely used during cruise, however, it is often influenced by the strong electromagnetic interference of the other large-scale electronic equipment on the robot itself. The leakage magnetic field of high-power brushless DC motor (BLDCM) has been identified as one of the main ...
Xiaojun Zhang +3 more
openaire +1 more source
Effective Torque Ripple Reduction of Permanent Magnet Brushless DC Motor [PDF]
To reduce commutation torque ripple, a model predictive control (MPC) for permanent brushless DC motors (BLDCM) is presented (CTR). Torque ripples cause vibration noise and decrease efficiency.
Krori Dutta, Kusumika, Mrs +1 more
core +1 more source

