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文章摘要
改进型双二阶广义积分器锁相环
Improved Dual Second-Order Generalized Integrator PLL
Received:July 17, 2018  Revised:July 17, 2018
DOI：10.19753/j.issn1001-1390.2019.017.022
中文关键词: 二阶广义积分器  直流分量  调节量
英文关键词: 
基金项目:国家重点研发计划（2017YFB1201003-020）
Author NameAffiliationE-mail
zhouke* lanzhou jiaotong university zhouke920921@163.com 
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中文摘要:
      在电网电压中含有一定的直流分量时，由于双二阶广义积分器锁相环(dual second-order generalized integrator PLL, DSOGI-PLL)系统对直流分量的衰减不足将导致其检测到的电网同步信号存在较大波动，其中频率与相角的大幅波动可能导致系统锁相失败。针对此问题提出改进方案，通过在已有系统中引入一个调节量使其对直流分量有更大的衰减，同时系统的动态性能、滤波效果并未受到损失。最后在电网电压存在直流时进行仿真分析，结果表明传统DSOGI-PLL的性能得到进一步提升。
英文摘要:
      
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