negative sequence component

Based on features of negative sequence components in the three-phase system, an islanding detection method based on the active negative sequence component disturbance ( ANSCD) is proposed.

根据三相系统含有负序分量的特点，采用有源负序扰动法进行三相并网逆变器的孤岛检测。

However, there will be a negative sequence component when grid voltage drops.

然而在电网电压跌落情况下，会有负序分量的产生。

The quantitative relationship between the reactive compensator and load impedance was derived, and its application to improvement of balance among three phases for reducing the negative sequence component in electrical networks for railway electrification was discussed briefly.

本文对三相平衡原理中补偿电抗和补偿电容与负荷阻抗之间的定量关系从电路角度进行了推导，并对其在电气化铁道负序补偿中的应用，做了初步探讨。