基于嵌入式电力系统谐波分析仪

Harmonic analyzer based on embedded power system

Abstract

The utility model discloses a harmonic analyzer based on an embedded power system, which comprises an embedded microprocessor 1, an FFT computing unit 8 and a signal processing circuit 31. The microprocessor 1 is connected with the FFT computing unit 8 through an Avalon bus, the signal input end of the FFT computing unit 8 is connected with the signal output end of a memory 7, the signal input endof the memory 7 is connected with the signal output end of an AD controller 6, the AD controller 6 is connected respectively with an AD converter 5, and the input end of the AD converter 5 is connected with the signal processing circuit 31. After the signals are received and conditioned by the signal receiving circuit, the signals are converted into digital signals by the AD converters, transmitted to the FFT computing unit for transformation, and computed and processed by the Nios II, and then the measurement results are displayed. The software and the hardware of the system can be upgradedin accordance with the needs, and the utility model also has the advantages of simple structure and easy carrying.
基于嵌入式电力系统谐波分析仪,包括有嵌入式微处理器1、FFT运算单元8和信号处理电路31,微处理器1通过Avalon总线与FFT运算单元8相连接,FFT运算单元8的信号输入端与存储器7的信号输出端相连,存储器7的信号输入端与AD控制器6的信号输出端相连,AD控制器6分别与AD转换器5相连,AD转换器5的输入端与信号处理电路31相连接,信号获取电路接收电网信号,信号整理后,经AD转换器转化为数字信号,送到FFT运算单元变换,再经NiosII运算、处理,显示测量结果,具有可根据需要对系统进行软硬件的升级、简易便携的特点。

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (0)

    Publication numberPublication dateAssigneeTitle

NO-Patent Citations (0)

    Title

Cited By (4)

    Publication numberPublication dateAssigneeTitle
    CN-102169137-AAugust 31, 2011株洲变流技术国家工程研究中心有限公司Signal processing method and measuring device for high-voltage frequency converter
    CN-102169137-BAugust 06, 2014株洲变流技术国家工程研究中心有限公司Signal processing method and measuring device for high-voltage frequency converter
    CN-103926462-AJuly 16, 2014东南大学Rapid harmonic wave analyzing method and device of power system
    CN-103926462-BFebruary 01, 2017东南大学一种电力系统谐波快速分析方法及运行装置