| 基于锁相同步采样的谐波测量 |
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| 引用本文： | 刘俊飞,刘宏达,徐俊红.基于锁相同步采样的谐波测量[J].应用科技,2005,32(5):27-29. |
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| 作者姓名： | 刘俊飞 刘宏达 徐俊红 |
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| 作者单位： | 哈尔滨工程大学,自动化学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 介绍了借助集成锁相芯片CD4046，利用单片机进行了电力系统谐波测量仪的开发，实验结果表明：通过硬软件的合理结合，该方案可以较好地实现谐波的同步测量，测量效果优于或等同于一些采用DSP的谐波测量装置，并且结合将等时间间隔采样变为等相位采样的思想，从根本上解决了基波频率波动对测量精度的影响。
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| 关 键 词： | 谐波测量 单片机 同步检测 锁相环技术 |
| 文章编号： | 1009-671X(2005)05-0027-03 |
| 修稿时间： | 2004年7月14日 |
Harmonic measurement based on phase lock synchronous sampling |
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| LIU Jun-fei,LIU Hong-da,XU Jun-hong.Harmonic measurement based on phase lock synchronous sampling[J].Applied Science and Technology,2005,32(5):27-29. |
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| Authors: | LIU Jun-fei LIU Hong-da XU Jun-hong |
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| Abstract: | The paper deals with the development of harmonic measuring instrument in power system by use of MCU combined with integrated phase lock chip CD4046. The experiment shows that this scheme can expediently implement synchronous harmonic measurement by reasonable combination of hardwares and softwares. The measurement results excel or come up to those from other harmonic measuring equipment based on DSP. And the influence from fundamental wave fluctuation was solved using equal phase sampling in place of equi-time interval sampling. |
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| Keywords: | harmonic measurement MCU synchronous detect phase-locked loop technology |
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