Doimiy magnitlangan motorlarning xususiyatlari va qo'llanilishi haqida gapirish

Compared with traditional generators, rare earth permanent magnet generators, permanent magnet synchronous generators do not require slip rings and brush devices, have a simple structure and reduce the failure rate. The use of rare earth permanent magnets can also increase the air gap magnetic density and increase the motor speed to the power-to-mass ratio. Almost all generators in the contemporary aviation and aerospace fields use rare earth permanent magnet generators. Its typical product is the 150 kVA 14-pole rare earth cobalt permanent magnet synchronous generator produced by General Electric Company of the United States, 12 000 r/min~21 000 r/min, 100 kVA 60 000 r/min. The first rare earth permanent magnet motor developed in my country was a 3 kW, 2 000 r/min permanent magnet generator.

Doimiy magnit generatorlari katta turbogeneratorlar uchun yordamchi qo'zg'atuvchi sifatida ham qo'llanilishi mumkin. 1980-yillarda mening mamlakatimizda o'sha paytdagi dunyoda katta quvvati 40 kVA ~ 160 kVA bo'lgan noyob tuproqli doimiy magnitli yordamchi qo'zg'atuvchi muvaffaqiyatli ishlab chiqilgan. 200 mw ~ 600 mw bug 'turbinasi generatori bilan jihozlangan elektr stantsiyasining ishlashining ishonchliligi sezilarli darajada yaxshilanadi.

Hozirgi vaqtda ichki yonuv dvigatellari tomonidan boshqariladigan mustaqil quvvat manbalariga ega kichik generatorlar, avtomobillar uchun doimiy magnit generatorlar va shamol g'ildiraklari bilan bevosita boshqariladigan kichik doimiy magnitli shamol generatorlari asta-sekin targ'ib qilinmoqda.