Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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软件测频方法及其在交流电参数采集中的应用

来源:电工电气发布时间:2016-04-05 17:05 浏览次数:757

软件测频方法及其在交流电参数采集中的应用 

梁勇1,2,郭谋发1 
1 福州大学 电气工程与自动化学院,福建 福州 350108;2 福州电业局,福建 福州 350009 
 

摘 要:在傅里叶交流采样算法的基础上提出一种软件测频方法,该方法既保留了傅式算法滤波能力强的优点,又简化了系统的硬件测频电路。阐述了软件测频的原理,推导交流电各个参数的计算公式,并结合单片机技术给出了一种基于STM32F103ZE处理器和AD7606模数转换芯片的交流电参数采集实现方案,论述了软件设计的流程,通过测试验证了该方案的适用性。
关键词:交流采样;软件测频;AD7606模数转换芯片;STM32F103ZE处理器
中图分类号:TM935.1 文献标识码:B 文章编号:1007-3175(2013)12-0045-04


Software Frequency Measurement Method and Its Application in AC Parameters Acquisition 

LIANG Yong1,2, GUO Mou-fa1 
1 College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108, China; 
2 Fuzhou Power Supply Bureau, Fuzhou 350009, China
 
 

Abstract: On the basis of discrete Fourier transform AC sampling algorithm, this paper proposed a method of software frequency measurement. This method not only retained the advantages of the filtering ability of discrete Fourier transform algorithm, but also simplified the circuit of frequency measurement. This paper described the software frequency measurement principle, making a deduction for the formula of various AC parameters and giving an AC parameters acquisition implementation plan based on the STM32F103ZE processor and the AD7606 analog-to-digital conversion chip. The flowchart of software design was discussed. The test verifies the applicability of this implementation plan.
           Key words: AC sampling; software frequency measurement; AD7606 analog-to-digital conversion chip; STM32F103ZE processor


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