Matsayin wani abu ne hysteresis loss?

Zaka iya Hysteresis Loss?

Hysteresis loss yana nufin kasa cikin zafi da aka samun hysteresis a matsayin ferromagnetic (kamar iron cores) idan an yi magnetization. Idan an yi gaba-gaba a magnetic field na musamman, ba za a iya tabbatar da ferromagnetic material na bayanin gaban wannan magnetic field; amma akwai lag. A cikin haka, idan strength na magnetic field ya zo zuwa zero, ba za a iya tabbatar da magnetization ta zo zuwa zero, amma ya kamata reverse magnetic field don in tafara shi. Wannan lag ya jawo energy a kan heat, wanda ake kira hysteresis loss.

Hysteresis loop ita ce diagram na wannan abu, wanda ke nuna nahawu a kan magnetic field strength (H) da magnetic flux density (B). Yadda area na hysteresis loop ke tasiri, take nuna energy loss per unit volume of the material for each complete cycle of magnetization.

Rolin Hysteresis Loss a Magnetic Circuits

Energy Loss:

A transformers, motors, da sauran electromagnetic devices, core ita ce mai karfi ko ferromagnetic material. Idan wannan devices suka yi aiki, magnetic field na core yana gaba-gaba a kan direction da strength. Kowane gaba-gaban magnetic field ya jawo hysteresis losses, wanda ya jawo energy a kan heat.

Wannan energy loss ya haɗa da overall efficiency of the device saboda ba a yi amincewa a input energy a kan heating the core, amma a yi amincewa a intended work.

Temperature Rise:

Heat da ake jawo daga hysteresis losses ya iya kasance temperature na core. Idan temperature ya fi tsarki, zai iya lashe insulation materials, haɗa da lifespan of the equipment, ko kuma iya lashe failure.

Saboda haka, domin a yi design da selecting ferromagnetic materials, yana da muhimmanci a fahimtar hysteresis characteristics don in haɗe unnecessary heat generation.

Impact on Device Performance:

High hysteresis losses zai iya haɗa da efficiency of the device, musamman a high-frequency applications inda waɗannan losses suna da muhimmanci. Don in yi amfani, low coercivity and low hysteresis loss materials kamar silicon steel ko amorphous alloys ana zama zai zama zaben.

A wasu lokaci, magnetic circuit design zai iya yi amfani don in haɗe frequency of magnetic flux density changes, don haka in haɗe hysteresis losses.

Calculation of Hysteresis Loss:

Hysteresis loss zai iya yi estimation using the Steinmetz equation:

where,Wh is the hysteresis loss per unit volume (watts per cubic meter);

kh is a constant related to the material;

f is the frequency of magnetic field changes (hertz);

Bm is the maximum magnetic flux density (tesla);

n is an empirical exponent, typically ranging between 1.6 and 2.0.

Summary

Hysteresis loss ita ce energy dissipation caused by the hysteresis effect in ferromagnetic materials, primarily manifesting as heat. A magnetic circuits, it affects the efficiency and temperature rise of devices, so careful consideration must be given to material selection and design. By choosing appropriate materials and optimizing designs, hysteresis losses can be effectively reduced, improving the overall performance and lifespan of the equipment.