Acquisition method and system of electric power data

Abstract

The invention discloses an acquisition method and system of electric power data. The method comprises steps that a DSP core controls a sampling chip connected with the DSP core to acquire electric power data; the DSP core acquires the electric power data; the DSP core carries out fast Fourier transform on the electric power data so as to obtain electric power data subjected to the fast Fourier transform; the DSP core sends the electric power data and the electric power data subjected to the fast Fourier transform to an ARM core through an inter-core interconnection channel; and the ARM core stores the received electric power data and the electric power data subjected to the fast Fourier transform. According to the invention, a framework of ARM + DSP is adopted to process the electric powerdata, so requirements on real-time acquisition, fast processing and man-machine application of the electric power data put forward by various kinds of electric power application occasions can be met.

Description

technical field [0001] The invention relates to the technical field of electric power automation measurement and control, in particular to a method and system for collecting and processing electric power data. Background technique [0002] The power secondary equipment system usually processes power data as follows: the measured voltage and current signals are processed by the secondary transformer PT / CT, then input to the ADC for sampling conversion, and then processed by ARM or DSP. However, in practice, it is found that ARM's data processing ability is relatively weak, and DSP's human-computer interaction ability is relatively weak. In many new applications, especially under the requirements of low power consumption, only ARM or only DSP can not meet the requirements. During the transition from traditional grid to smart grid, higher requirements are put forward for the capacity of secondary equipment system. Contents of the invention [0003] The invention provides a m...

AI Technical Summary

Problems solved by technology

However, in practice, it is found that ARM's data processing ability is relatively weak, and DSP's human-computer interaction ability is relatively weak. In many new applications, especially under the requirements of low power consumption, only ARM or only DSP can not meet the requirements. Higher requirements for the capabilities of secondary equipment systems during the transition from traditional power grids to smart grids

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