测控技术2017，Vol.36Issue(12)：29-32,38,5.
新型改进锁相环FBD电流检测方法的实现
Implementation of New Improved PLL FBD Current Detection Method
张展 1张宏恩 1杨东2
作者信息
- 1. 河南理工大学电气工程与自动化学院,河南焦作451500
- 2. 国网新疆电力公司电力科学研究院,新疆乌鲁木齐830000
- 折叠
摘要
Abstract
In the traditional harmonic detection method,phase lock loop is not accurate when the grid voltage distortion and frequency deviation,which affects the precision of harmonic detection.Making use of LPN and PLL based on FBD,the voltage of two line is processed and the zero-sequence,negative sequence components and higher-order harmonics of distorted voltage based on trapper are filtered,so the three-phase reference voltage signal with the same phase as positive sequence voltage of fundamental harmonic can be obtained.Theory and simulation indicate the method can improve the detection precision of harmonic current effectively when the grid voltage is distorted.关键词
谐波检测/FBD算法/锁相环Key words
harmonic detection/FBD algorithm/phase-locked loop分类
信息技术与安全科学引用本文复制引用
张展,张宏恩,杨东..新型改进锁相环FBD电流检测方法的实现[J].测控技术,2017,36(12):29-32,38,5.
