余永奎,李华,刘俊峰

• 1:广东电网有限责任公司中山供电局
• 2:华南理工大学自动化科学与工程学院

摘要(Abstract)：

在电力系统中,电压相位信息的获取和控制对于并网场合很重要,单相锁相技术对于实现相位同步具有重要意义。针对二阶广义积分器和传统锁相环在电网频率突变时存在较大相位偏差的问题,本文提出了一种基于固定频率二阶广义积分器的新型锁频环算法,详细说明固定频率二阶广义积分器的工作原理,分析了新型锁频环的控制结构。在Matlab/Simulink中搭建新型锁频环的仿真模型,与传统的基于二阶广义积分器的锁相环进行了对比分析,结果表明新型锁相环动态响应更好,锁相精度更高,验证了新结构的可行性。

关键词(KeyWords)： 锁相技术;二阶广义积分器;固定频率二阶广义积分器;锁相环;锁频环

Abstract:

Keywords:

基金项目(Foundation): 南方电网科技资助项目(0320002017030102AJ00003)

作者(Author): 余永奎,李华,刘俊峰

DOI: 10.19635/j.cnki.csu-epsa.000280

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