990XCP98000 Quantum
技術進步繼續(xù)將 BLDC 技術帶入更廣泛的低成本應用,這些應用傳統(tǒng)上由標準直流有刷電機提供服務,使其成為增長快的電機類型之一。雖然 BLDC 比標準直流有刷電機相對昂貴,但 BLDC 在低磨損和維護在總體總擁有成本中起主要作用的應用中具有吸引力。BLDC 還在需要低速或變速運行的應用中取代 ACI,例如 HVAC 系統(tǒng)中的鼓風機電機,可以調(diào)整其速度以更地運行。
除了在變速下提供比 ACI 的性能外,BLDC 電機在同等成本下體積更小、效率更高。通過換向驅(qū)動 BLDC 電機相當簡單,從而節(jié)省了電機設計、電子控制和更輕的整體重量。由于磁體中的固有磁通,驅(qū)動電機所需的電流更少,從而提高了 BLDC 電機的效率。
雖然 BLDC 電機歷來用于許多位置控制應用,但 PMSM 用于需要位置控制、速和/或高扭矩的應用。常見應用包括牽引力控制、精密自動化(機器人)和混合動力/電動汽車。PMSM 提供更高的效率和扭矩,在換向時具有小的扭矩波動,提供更高的大可實現(xiàn)速度,與低成本的分布式繞組一起工作,并且噪音低。由于 PMSM 基于連續(xù)正弦控制,因此在運行期間觀察到的噪音較小,從而能夠更快地對負載變化做出反應,并準確地達到所需的扭矩、速度和位置。
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