positive sequence component meaning in English

正相序分量
正序分量

Based on the concept of space vector , an open loop detecting method for the fundamental negative and positive sequence components as well as the harmonic components is developed , which combining the conventional detecting method based on filters and the concept of space vector . this method can overcome the defaults of the conventional detecting method , and can meet the requirement of the asymmetrical control of hvdc - vsc
基于空间矢量的概念，提出了一种开环的基波正序分量、基波负序分量及谐波分量的实时检测方法，这种方法可以看作是空间矢量的概念与传统的基于滤波器的谐波检测方法的结合，它能够克服原有的基于滤波器的检测方法的不足，可用于hvdc - vsc的不对称运行控制。