fundamental current meaning in English

基波电流

In this thesis , phase - locked loop ( pll ) technogies are used to acquire phase of fundamental current in bais current , which enhances the detecting precision of bais current . and we want the phase of bais current and the phase of system current is the same , so this thesis think of locking the phase of bais current which based on this theory to sure the security and the reliability of apf
本文采用锁相技术，以获得畸变电流中基波电流的相位，进一步提高了畸变电流的检测精度，并据此原理考虑锁定补偿电流的相位，使补偿电流与系统电流相位同步，保证apf安全可靠运行。