低压配电网电压质量检测系统的设计  

Design of Low Voltage Distribution Network Voltage Quality Detection System

作　　者：曹云东[1] 韩先鹤[1] 刘晓明[1] 华争祥[1] 

机构地区：[1]沈阳工业大学特种电机与高压电器重点实验室,辽宁沈阳110870

出　　处：《低压电器》2011年第6期46-50,共5页Low Voltage Apparatus

基　　金：辽宁省教育厅优秀人才支撑计划(2008RC37);国家自然科学基金项目(50877048);教育部新世纪优秀人才支持计划(NCET-08-0863)

摘　　要：针对日益严重的低压配电网电压质量问题,提出了一种新型的电压质量检测装置的设计方案。系统采用基于核的微处理器LPC2210为主控制器,运用快速傅里叶变换和小波变换,提取电网电压信号的特征量;通过判断特征量的大小,得到电网电压的性质;给出了检测系统的现代电器设计理论、硬件设计和软件设计的设计方案。试验结果证明了该系统在低压配电网电压质量检测中的有效性和可靠性。Against the growing problem of low voltage distribution network voltage quality,a new design of voltage quality detection device was proposed,the system was based on ARM microprocessor named LPC2210 using the fast Fourier transform and wavelet transform to extract features of the grid voltage signal,then the natures of the grid voltage were detenmined through these features.The overall program of the hardware design and software de-sign was given.Experimental results showed the system was effective and reliable in low voltage distribution net-work.

关 键 词：低压配电网 电压质量 检测系统 小波变换 

分 类 号：TM933.2[电气工程—电力电子与电力传动]