含随机脉冲噪声电信号的电能质量检测系统设计

Design of power quality detection system for electrical signals with random impulse noise

电力电子化电力系统与传统电力系统相比具有特殊性,其电信号宽频域强随机脉冲噪声逐步受到关注,随之带来的电能质量检测问题日益突出,目前传统的电能质量检测算法是否适用亟待研究。首先利用Vivado设计环境下的System Generator联合Matlab/Simulink仿真工具,建立Markov-middleton宽频域随机脉冲噪声模型,然后基于Matlab仿真平台搭建电能质量仿真实验系统,最后以谐波/间谐波检测实验为例验证常规算法在随机脉冲噪声下的适用性。该实验系统立足学术前沿,结合实际工程问题,将技能培养、科研思维和研究方法融入实验教学中,提高了学生对复杂问题的解决能力。

Compared with traditional AC power system,there are some particularities in power electronic equipment dominated power grid.The wide frequency domain and strong random impulse noise has gradually attracted attention,and the power quality detection problems have became increasingly prominent.It is urgent to study whether the traditional power quality detection algorithm is applicable.This article established a Markov-middleton wide-band random impulse noise model with System Generator under the Vivado design environment combined with Matlab/Simulink simulation tools,then the power quality simulation experiment system based on the Matlab simulation platform is build,and finally harmonic/inter-harmonic detection experiments are taken to verify the applicability of conventional algorithms under random impulse noise.The experimental system is based on the academic frontier,combined with actual engineering problems,integrates skill training,scientific research thinking and research methods into experimental teaching,and improves students􀆳ability to solve complex problems.