改进型双二阶广义积分器-锁频环优化设计  

Optimal Design of Improved Dual Second-order Generalized Integrator-Frequency Locked Loop

作　　者：许才 姜传霏 陈更 刘春晖 郑博文 王纯 Xu Cai

机构地区：[1]国网内蒙古东部电力有限公司电力科学研究院,内蒙古呼和浩特010020

出　　处：《工业控制计算机》2024年第10期121-123,共3页Industrial Control Computer

基　　金：内蒙古自治区科技重大专项(2020ZD0014)。

摘　　要：针对电网非理想条件下的同步信号检测问题,在分析了传统二阶广义积分器模型在直流分量和高次谐波条件下动态性能的基础上,提出了一种改进型双二阶广义积分器及锁频环控制结构,对其动态性能给出了理论分析,并提出了改进型三相二阶广义积分器及锁频环控制模型。仿真实验结果表明:与传统控制结构相比,改进型控制模型相比传统模型在特征次谐波、直流分量和间谐波扰动下性能分别提升了94.48%、85.17%和89.73%。Aiming at the problem of synchronizing signal detection under non-ideal conditions of power grid,an improved dual second-order generalized integrator is proposed based on the analysis of the dynamic performance of the traditional second-order generalized integrator model under the condition of DC components and high-order harmonics.The control structure of the frequency-locked loop is given,the theoretical analysis of its dynamic performance is given,and an improved three-phase second-order generalized integrator and the control model of the frequency-locked loop are proposed.The simulation results show that compared with the traditional control structure,the performance of the improved control model is improved by 94.48%,85.17%and 89.73%respectively under the characteristic sub-harmonic,DC component and inter-harmonic disturbances.

关 键 词：二阶广义积分器 锁频环 直流分量 特征次谐波 

分 类 号：TN911.8[电子电信—通信与信息系统] TM46[电子电信—信息与通信工程]