基于对称分量法理论，提出了基于检测正序、负序、零序电流分量的电动机保护方法。

Based on the symmetry component theory, a method of the motor protection is presented by measuring positive, negative and zero sequence current component.

youdao

首先运用对称分量法将单相异步电动机分为正序系统和负序系统，然后分别用矩阵分析了这两个系统中各自的有功功率、无功功率和视在功率。

Using the method of symmetric components and matrix, this paper analyses instantaneous power and the operation parameters concerning one-phase asynchronous motor in dynamic state.

youdao

通过对三相异步电动机空载实验中遇见的故障——三相相间功率的极大不对称性进行分析。

Through analyzing the asymmetry about the power among three phase of the no-load experiments of the triphase asynchronous motor is designed.

youdao