Software Frequency Measurement Method and Its Application in AC Parameters Acquisition
Author(s): LIANG Yong, GUO Mou-fa, College of Electrical Engineering and Automation, Fuzhou University, Fuzhou Power Supply Bureau
Pages: 45-48
Year: 2013 Issue: 12
Journal: Jiangsu Electrical Apparatus
Keyword: AC sampling; software frequency measurement; AD7606 analog-to-digital conversion chip; STM32F103ZE processor;
Abstract: On the basis of discrete Fourier transform AC sampling algorithm,this paper proposed a method of software frequency measure- ment.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.
Pages: 45-48
Year: 2013 Issue: 12
Journal: Jiangsu Electrical Apparatus
Keyword: AC sampling; software frequency measurement; AD7606 analog-to-digital conversion chip; STM32F103ZE processor;
Abstract: On the basis of discrete Fourier transform AC sampling algorithm,this paper proposed a method of software frequency measure- ment.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.
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