I ka wā o ke kaʻina hana braking, ʻo nā poho o loko o ka kaʻa a me nā poho mechanical ma kahi o 20% o ka torque i helu ʻia.
No laila, inā ʻoi aku ka liʻiliʻi o ka torque braking i koi ʻia ma mua o kēia waiwai, ʻaʻole koi ʻia ka pale pale braking waho. Ke hoʻohana ʻia ka frequency converter (VFD) no ka deceleration a i ʻole ka deceleration ulia pōpilikia o kahi haʻahaʻa inertia nui, hana ka kaʻa i ka mokuʻāina o ka mana a hoʻouna i ka ikehu ukana i ka DC circuit o ka VFD ma o ke alahaka inverter, e hoʻoulu ai i ka volta pahi VFD. e ala.
Ke ʻoi aku ia ma mua o kekahi waiwai, e hōʻike ka mea hoʻololi alapine i kahi hewa overvoltage (deceleration overvoltage, hikiwawe deceleration overvoltage).
I mea e pale aku ai i kēia hanana, pono e koho i kahi pale pale pale.
Koho oPaʻa Paʻakū'ē:
ʻAʻole pono e nui ka waiwai kū'ē o ka pale pale pale. ʻO ka nui o ka waiwai kūʻē e alakaʻi i ka lawa ʻole braking torque. ʻOi aku ka liʻiliʻi a i ʻole like me ka waiwai kūʻē kūʻē braking e pili ana i ka 100% braking torque. ʻAʻole pono e liʻiliʻi ke kūʻē o ka pale pale pale, a ʻaʻole e emi iho ma mua o ka waiwai haʻahaʻa i ʻae ʻia o ka pale pale. Hiki ke hoʻopōʻino i ka ʻauahi braking i kūkulu ʻia o ka mea hoʻohuli.
Ke koho ʻana i ka mana paleki braking:
Ma hope o ke koho 'ana i ka waiwai kū'ē o kaPaʻa Paʻa, koho i ka mana o ka braking resistor e like me ka braking utilization rate o 15% a me 30%. ʻO ka lawe ʻana i kahi dehydrator 100kg i hoʻokuʻu ʻia ma ke ʻano he laʻana, me ka hoʻohana ʻana i ka mea hoʻololi pinepine 11kW, ʻo ka nui o ka hoʻohana ʻana i ka brake ma kahi o 15%: Hiki iā ʻoe ke koho i ka 62Ω braking resistor e pili ana i ka "100% braking torque", a laila koho i ka mana o ka braking. pale pale. E pili ana i nā papa "100% braking torque" a me "15% braking utilization", ʻo 1.7kW ka mana o ka braking resistor, a ʻo nā mea maʻamau he 1.5kW a i ʻole 2.0kW. ʻO ka mea hope loa, koho i ka "62Ω, 1.5kW" a i ʻole 2.0 kW pale pale.
" I mea e haki wikiwiki ai, hiki ke hoʻohui like ʻia ʻelua "62Ω, 1.5kW braking resistors" i ka like, e like me ka "31Ω, 3.0kW braking resistor".
Eia naʻe, pono e hoʻomaopopo i ka waiwai hope o kaPaʻa Paʻa ʻAʻole pono e emi iho ma waena o nā pahu P+ a me DB ma mua o ke kumu kūʻai haʻahaʻa haʻahaʻa o 30Ω. Ka hoʻohana ʻana i ka pahu: E pili ana kēia i ka ratio o ka manawa ma lalo o ka braking i ka manawa hana holoʻokoʻa. ʻO ka hoʻohana ʻana i ka braking e hiki ai i ka braking unit a me ka braking resistor i ka manawa kūpono e hoʻopau i ka wela i hana ʻia i ka wā braking. No ka laʻana, inā hana ka mīkini no 50 mau minuke a aia i ke kūlana braking no 7.5 mau minuke, ʻo 7.5/50=15%.
No nā manawa e koi ai i ka braking pinepine, e like me ka dehydrator, inā ʻoi aku ka nui o ka braking ma mua o 15% i ka papaʻaina, pono e hoʻonui ʻia ka mana o ka pale pale e like me nā kūlana hana. Manaʻolana ua kōkua kēia unuhi iā ʻoe!
