研制具有补偿中线电流能力的有源滤波器（APF）装置具有重要的现实意义。
To develop a shunt APF to mitigate these problems has crucial significance.
通过对相电流及中线电流的计算，给出了二者的关系式，为确定选择中线提供了理论依据。
The relation formula is given by calculating the phase current and central wire current, thus the motivation of central wire choice is offered.
根据这一特点，对小电流接地系统中线路的零序参数相频特性进行研究，得出系统发生单相接地故障时不同频带上暂态零序电流特性。
The zero-sequence angle-frequency characteristic of the lines are studied based on it and the characteristics of transient zero-sequence current in different frequency ba.
应用推荐