输油(气)系统中电动机效率的不确定度分析及其应用

Uncertainty analysis and application on efficiency for electric motor in oil-gas transportation system

电动机的主要评价指标是电机效率,测量参数的质量对效率测算结果准确程度影响很大。文章根据不确定度分析原理,建立了电动机效率的不确定度分析模型,并给出了计算方法。在此基础上,利用实际测算数据,计算了一台输油系统中电动机效率的不确定度。最后,探讨了如何降低不确定度的措施。

The efficiency is the primary evaluating indicator for electric motor,the quality of measured parameters influences the system efficiency greatly.Based on the principle of uncertainty analysis,uncertainty analysis models of efficiency for electric motor are established and the calculation methods are given.Then,an electric motor is employed as an example to illustrate the proposed method.Finally,the measures to reduce uncertainty of electric motor is discussed.