| 宽频锁相的一种实现方法 |
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| 引用本文： | 杨博,徐罗那,杜海江.宽频锁相的一种实现方法[J].电测与仪表,2015,52(8). |
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| 作者姓名： | 杨博 徐罗那 杜海江 |
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| 作者单位： | 中国农业大学信息与电气工程学院,北京,100083 |
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| 摘 要： | 将PWM整流器用于小型风力发电机时,宽频率范围锁相技术是其关键环节。针对此需求,文中将基于二阶广义积分(SOGI)锁相环与过零测频功能结合,并根据频率变化和频率适应范围实时调整PI参数,使相位跟踪快速准确。仿真表明所提方法在输入信号频率、幅值和谐波等多扰动源工况下都能准确实现相位和频率跟踪。
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| 关 键 词： | 宽频锁相 二阶广义积分 过零法测频 PI调节 |
| 收稿时间： | 2014/5/21 0:00:00 |
| 修稿时间： | 2014/7/25 0:00:00 |
A New Method of Broadband Phase Lock Link |
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| YangBo,XuLuona and DuHaijiang.A New Method of Broadband Phase Lock Link[J].Electrical Measurement & Instrumentation,2015,52(8). |
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| Authors: | YangBo XuLuona and DuHaijiang |
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| Affiliation: | China Agricultural University,China Agricultural University,China Agricultural University |
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| Abstract: | When the PWM rectifier is used in small wind turbines, phase lock link (PLL) of wide frequency range is the key technique. According to this requirement, the following techniques are combined together to make fast and accurate phase tracking, which including second-order generalized integrator (SOGI), zero-crossing frequency measuring block are combined together, and adjustable PI parameters in real time based on the frequency change and frequency adaptation. Simulation results show that the proposed method can achieve accurate phase and frequency tracking of the input signal, which includes dynamic change of input signal frequency, amplitude and harmonic disturbances. |
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| Keywords: | broadband PLL second order generalized integrator zero-crossing frequency measuring PI adjustment |
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