Kwakwalwa na Torque
Torque na reluctance, ko kuma ana kiranta da sunan alignment torque, ita ce matsaloli na shaida da ke faruwa a kan abubuwa na ferromagnetic idan an baka a kan magnetic field na gaba. Wannan torque yana taimakawa wajen tsara abubuwan ferromagnetic game da haguji na magnetic field na gaba. Idan an baka a kan magnetic field na gaba, abubuwan ferromagnetic zai faru magnetic field na gida a cikinsu. Yadda ake haɗa wannan magnetic field na gida da magnetic field na gaba ke faru reluctance torque, wanda yake buƙata abubuwar zuwa haguji na magnetic field lines. Wannan tsarin yana faruwa saboda systemin yana neman don koyar da magnetic reluctance, wanda yana kasance masu yawan kyau a kan establishment of a magnetic flux a cikin abubuwa.
Wannan torque yana faruwa daga haɗin magnetic fields, wanda ke buƙata abubuwar zuwa tsarin da ya kunshi axis aligned with the magnetic field direction. Wannan torque yana buƙata abubuwar zuwa haguji na magnetic reluctance, don haka ta yin daɗi tsari mai kyau don magnetic flux to flow.
Wannan torque tana kira da sunan saliency torque, saboda uku da shi yana faruwa ne da saliency characteristics na machine. Saliency, wanda yana kasance geometric and magnetic asymmetry a cikin machine, tana yin variations in magnetic reluctance wanda suke buƙata production of this torque.
Reluctance motors tana yi amfani da reluctance torque don sakamakon. Functionalidadin motor tana cimma a continuous interaction and realignment of magnetic fields, enabled by this torque, to produce rotational motion. Tsarin reluctance torque zai iya tabbatar da formula mai sauƙi, wanda yake haɗa various parameters such as the magnetic field strengths, machine geometry, and material properties, providing a quantitative measure crucial for the design, analysis, and optimization of reluctance - based electrical machines.
A cikin context of reluctance torque calculations, the following notations are used:
Trel represents the average value of the reluctance torque.
V denotes the applied voltage, which plays a crucial role in energizing the motor and influencing the magnetic field interactions.
f stands for the line frequency, determining the rate at which the magnetic fields change and thus impacting the torque generation process.
δrel is the torque angle, measured in electrical degrees. This angle indicates the phase difference between the stator and rotor magnetic fields and is a key factor in calculating the magnitude of the reluctance torque.
K is the motor constant, a parameter specific to the motor that encapsulates various design - related characteristics, such as the magnetic circuit geometry and material properties.
Reluctance torque tana faruwa a cikin reluctance motors. Prinsipin fundamental behind its production in these motors lies in the variation of magnetic reluctance. As the rotor moves within the magnetic field of the stator, changes in the air - gap length and magnetic path geometry cause fluctuations in reluctance. These variations, in turn, give rise to the reluctance torque, which drives the motor's rotation.
The stability limit of reluctance motors, in relation to the torque angle, typically ranges from +δ/4to -δ/4. Operating within this angular range ensures the motor maintains stable operation, avoiding issues such as stalling or erratic behavior.
In terms of construction, the stator of a reluctance motor closely resembles that of a single - phase induction motor, featuring windings designed to create a rotating magnetic field. The rotor, on the other hand, is commonly of the squirrel - cage type. This simple yet effective rotor design, combined with the unique magnetic characteristics of the stator, enables the efficient generation and utilization of reluctance torque, making reluctance motors suitable for a variety of applications where cost - effectiveness and reliable operation are key requirements.
