| 基于变动频率滤波的新型数字锁相环 |
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| 引用本文： | 伍小杰,赵冰洁,符晓,戴鹏. 基于变动频率滤波的新型数字锁相环[J]. 电气传动, 2010, 40(12) |
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| 作者姓名： | 伍小杰 赵冰洁 符晓 戴鹏 |
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| 作者单位： | 中国矿业大学,信电学院,江苏,徐州,221008;中国矿业大学,信电学院,江苏,徐州,221008;中国矿业大学,信电学院,江苏,徐州,221008;中国矿业大学,信电学院,江苏,徐州,221008 |
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| 基金项目： | 江苏省普通高校研究生科研创新计划项目 |
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| 摘 要： | 提出了一种应用于单相并网系统中的基于变动频率滤波原理的优化型数字锁相环,并加入了频率控制以及初始相位角定位等模块.在保留了现有优化型锁相环结构简单,灵敏度高,动态响应快等优点的前提下、解决了其存在的抗谐波干扰能力差,频率超调大等问题.利用Matlab软件对电网电压幅值、频率和相位角的突变、谐波注入等参数变化的影响做了仿真研究.在此基础上,搭建了以TMS320F2812 DSP为控制核心的实验装置,仿真验证和试验结果证明了该方法的可行性.
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| 关 键 词： | 变动频率平均值 优化型锁相环 单相并网系统 滤波器 初始相角定位 |
New Enhanced Digital Phase-locked Loop Based on Variable Frequency Average |
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| WU Xiao-jie,ZHAO Bing-jie,FU Xiao,DAI Peng. New Enhanced Digital Phase-locked Loop Based on Variable Frequency Average[J]. Electric Drive, 2010, 40(12) |
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| Authors: | WU Xiao-jie ZHAO Bing-jie FU Xiao DAI Peng |
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| Affiliation: | WU Xiao-jie,ZHAO Bing-jie,FU Xiao,DAI Peng(School of Information and Electrical Engineering,China University ofMining and Technology,Xuzhou 221008,Jiangsu,China) |
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| Abstract: | A new design method of enhanced digital phase-locked loop(EPLL) that used in single-phase grid-connected system was presented.The improved EPLL is based on the principle of variable frequency average(VFA) that eliminates harmonics.The modules of frequency control and initial phase angle position were added in.The model inherits some salient advantages of the existing EPLL,such as fast tracking speed,structural simplicity and high sensitivity.Compared with the existing EPLL,the improved EPLL provides more ro... |
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| Keywords: | variable frequency average(VFA) enhanced digital phase-locked loop(EPLL) grid-connected single-phase system filter initial phase locked |
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