基于复数滤波器的三相锁相环技术改进策略  

Improvement Strategy of Three-Phase Phase-Locked Loop Technology Based on Complex Coefficient Filter

作　　者：鞠艳杰[1] 何帮鹏 JU Yanjie;HE Bangpeng(School of Automation and Electrical Engineering,Dalian Jiaotong University,Dalian 116028,China)

机构地区：[1]大连交通大学自动化与电气工程学院,辽宁大连116028

出　　处：《大连交通大学学报》2023年第4期114-120,共7页Journal of Dalian Jiaotong University

摘　　要：提出了一种改进型前置复数滤波器PLL(Complex Coefficient Filter PLL,CCF-PLL),以增强锁相环在非理想电网条件下的估计性能。此方案在传统的CCF-PLL基础上,提出利用二阶广义积分器(Second-Order Generalized Integrator,SOGI)滤波以及改变复数滤波器的反馈信号的方案,来增强其在非理想电网条件的估计性能。对传统CCF-PLL和改进型CCF-PLL的性能进行仿真测试,测试结果验证了所提方案的有效性。An improved complex filter PLL(CCF-PLL)is proposed to enhance the estimation performance of the PLL under non ideal power grid conditions.Based on the traditional CCF-PLL,this scheme proposes a scheme of using a second-order generalized integrator(SOGI)to filter and change the feedback signal of the complex filter in order to enhance its estimation performance in non-ideal grid conditions.Finally,the performance of the traditional CCF-PLL and the proposed CCF-PLL is tested by simulation.The results verify the effectiveness of the proposed scheme.

关 键 词：锁相环 复数滤波器 二阶广义积分器 反馈信号 

分 类 号：TN911.8[电子电信—通信与信息系统] TN713[电子电信—信息与通信工程]