The system adopts modulation, demodulation, and bisynchronous measuring to signal and reference channels in order to guarantee its stability and precision requirements. 系统通过采用调制、解调、窄带滤波,信号支路和参考支路双通道相比测量等技术措施,来保证系统的高稳定性和高分辨率。
In order to control the positive sequence, negative sequence and zero sequence components independently, the last two control strategies based on bisynchronous coordinates are introduced. 为了实现对正序、负序和零序分量的独立控制,本文还采用了两种基于双同步旋转坐标变换的控制策略。