Principle and Performance of the Three-Phase Digital Phase-Locked Loop
Gong Jinxia1, Xie Da1, Zhang Yanchi2, 3
1. Shanghai Jiaotong University Shanghai 200240 China 2. East China University of Science and Technology Shanghai 200237 China 3. Shanghai Dianji University Shanghai 200240 China
Abstract：This paper analyzes the fundamental principle and performance of three-phase phase-locked loop. and the harmonic component in variable situations. It deducts the error influence on three-phase locked phase when the three-phase input signals are offsetting, unbalanced or with harmonics. The theoretical conclusions are confirmed by detailed simulations under the situations, such as offsetting, unbalance, harmonic, phase-abrupt and frequency-abrupt. The simulation results prove that the three-phase phase-locked loop can work well in disturbance situation and variable frequency system when the frequency of the inputs is variable.
龚锦霞, 解大, 张延迟. 三相数字锁相环的原理及性能[J]. 电工技术学报, 2009, 24(10): 94-99.
Gong Jinxia, Xie Da, Zhang Yanchi. Principle and Performance of the Three-Phase Digital Phase-Locked Loop. Transactions of China Electrotechnical Society, 2009, 24(10): 94-99.
2009, Vol. 24 
