摘要
潜油电机是一种立式工作的特殊三相异步电动机,其结构细长,定转子采用分段结构,每两段定转子之间分别装有隔磁段和扶正轴承。显然普通三相异步电机的设计方法难以适用于潜油电机。修正了潜油电机端部漏抗和隔磁段漏抗的计算方法,并采用流体力学的基本理论,推导出了转子与润滑油之间的油摩损耗的计算公式,计算了扶正轴承中的涡流损耗,改进了潜油电机的设计方法。设计制造了两台样机,一台装有隔磁段,另一台没有隔磁段,旨在考核分段处结构对电机电磁参数和性能指标的影响。实验结果验证了所改进设计方法的正确性,同时得到隔磁段对电磁参数和性能存在较大影响,设计时应充分考虑。
Submersible motor is a kind of vertical three-phase asynchronous motor. The stator and rotor are slender and separated, and the gap is full of special lube oil. The rotor includes several cage-type rotor units; there is bearing between every two units; corresponding to the rotor bearing, there are magnetic isolated segments in the stator core. Obviously, common calculation method for general three-phase asynchronous motor is not completely suitable for submersible motor. The calculation methods of the leakage reactance in end and the leakage reactance in magnetic isolated segment of submersible motor were corrected in the paper. The calculation formula of friction loss between rotor and lubricating oil was derived by a combination of basic theory of hydrodynamics. The eddy loss of rotor bearing was calculated and then the design method of submersible motor was improved. Two simulation models, one with magnetic isolated segment and the other without, were designed and manufactured in this paper. The influence of magnetic isolated segment on parameters and performance of submersible motor is great, which can be as- sessed by the experiment data. The correctness of the modified design method is verified by the experimental results.
出处
《电机与控制学报》
EI
CSCD
北大核心
2012年第7期72-76,共5页
Electric Machines and Control
基金
黑龙江省科技攻关项目(GZ11A203)
关键词
潜油电机
隔磁段
端部漏抗
电磁参数
油摩损耗
涡流损耗
submersible motor
magnetic isolated segment
end leakage reactance
electromagnetic parameter
lubricating oil friction loss
eddy-current loss
