Studies On Dual Cores Power Quality Analyzer Based On DSP And ARM

Along with the widely application of modern power electronic technology, power pollution becomes serious increasingly,more and more attentions of power departments and consumers are turned to the power quality.There is great practical significance to improve the power quality by monitoring and analyzing.This paper first introduced the concept of the basic power quality,power quality problems of the various classifications,characteristics and causes harm and a detailed exposition.Through the power quality indicators(three-phase voltage imbalance,voltage fluctuations and flicker,supply voltage deviation,the public power grid harmonics,frequency deviation) analysis to the traditional Fourier transform based on the theory of light Power quality analysis of the difficulties that the mutation,the transient,non-stationary signals in the detection and classification, based on the Fast Fourier transform to the transient power quality analysis.After a system study of power quality analysis theory and the basis of detector technology,power quality analysis system for the need to support the complex algorithms and real-time to maintain the special requirements of developing a framework based on the DSP and ARM Embedded Power Quality Analysis System Hardware platforms and software systems.Focus of the DSP and ARM selection based on structural features and specific applications.And detailed introduction of a hardware platform of the components and circuit schematics.Subsequently,the proposed part of the device software design,which focuses on the DSP part of the FFT algorithm design,the operating system UC/OS-â…¡migration of ARM part and development MiniGUI graphical interface.Finally,conclude the paper's main work, and the direction of the future.