Misalai na mota mai gaba da dama?

Mai suna da Synchronous Motor Drive?

Gwamnati na Synchronous Motor

Synchronous motors ba su zama da koyarwa ce, wanda ya ba da yawan abu mai tsawo. Don in fahimta hanyoyin da suke koyarwa, ita ce mu gane da shirye-shirye na kayan aiki da kuma abubuwan motor, musamman rotor da stator.

Stator na synchronous motors ta fi dace da stator na induction motors, amma farkon da ke cikin rotor, rotor na synchronous motors ana kunna DC supply.

 Kafin a tuntubi masu hanyoyin da suke koyarwa, ita ce mu gane da sababin da ba su zama da koyarwa. Idan a yi kokarin kayayyaki da aiki na stator, yana faruwa da magnetic flux mai karfi a wakar sama da suka koyarwa. Idan rotor, da a kunna DC power, ya faɗa da magnet da biyu salient poles, yana gaba da canza da fitaccen koyarwa a wannan magnetic field mai karfi.

Rotor, da ya faruwa da take daidai, ba zan iya haɓaka da wakar sama da magnetic field. Yana cika da kuma ya faruwa saboda karfin koyarwa, wanda ya ba da locking—wannan ne take bayyana cewa ba zan iya koyarwa da koyarwa. Don in koyarwa, suke yi aiki da koyarwa kamar induction motors baya da DC supply zuwa rotor, har zuwa lokacin da ya haɓaka da wakar sama da koyarwa, wanda zan bayyana a nan.

Wata hanyoyi na koyarwa na synchronous motor drives shine tun da motor waje. A hanyoyin, rotor na synchronous motor zai ci koyarwa da motor waje, idan wakar rotor ya haɓaka da wakar sama da koyarwa, DC-field zai ci kunna da kuma pull in zai faru. A hanyoyin, starting torque ta fi kadan da kuma ba ta fi koyarwa ce.

Hanyoyin Koyarwa

Synchronous motors ba su zama da koyarwa; suke yi aiki da koyarwa kamar induction motors ko tun da motor waje don haɓaka da wakar sama da koyarwa baya da kunna DC field.

Principle na Aiki na Synchronous Motor

Principle na aiki yana haɗa da rotor mai DC-power da ya faruwa da magnetic field wanda ya ci koyarwa da rotating field na stator don haɓaka da wakar sama da koyarwa.

Braking na Synchronous Motors

Babu hanyoyin braking uku: regenerative, dynamic braking, da plugging. Amma, dynamic braking ne mafi daidaita wa synchronous motors—plugging current ta fi koyarwa a cikin littattafai, amma ba ta fi koyarwa a cikin aiki saboda yadda ake iya kara disturban gajeru. A lokacin dynamic braking, motor zai ci cut-off da power supply kuma zai ci connect da three-phase resistor, wanda zai ci transform da shi a kan synchronous generator wanda yana ci dissipate energy da kyau tun da resistors.

Pull-In Technique

Timing na DC field activation yana da muhimmanci don koyarwa da ingantaccen wakar sama da kuma koyarwa da acceleration da kyau zuwa wakar sama da koyarwa.