摘要
基于分布参数电路理论,应用电报方程,推导出架空输电线三相全耦合传输线方程,并确定了二相回路传输线方程波参数与全耦合传输线波参数的关系。介绍了用数字信号处理器DSP(DigitalSignalProcessor)和单相正弦信号源确定二相回路传输线方程波参数,进而整定三相-地耦合传输线波参数的原理与方法,并给出了电压相量测试电路的硬件实现。模型线路上的实验表明该测试方法原理正确,测试精度高。
Three-phase coupling transmission line equation is derived for the overhead transmission lines based on the distributed circuit theory and telegraph equation.The wave parameter relations between two-phase circuit transmission line equation and three-phase coupling transmission line are achieved.DSP(Digital Signal Processor)and single-phase sinusoidal single are applied to get the wave parameters of two-phase circuit transmission line equation,with which the coupling transmis-sion line wave parameters in symmetric three-phase-ground are determined.The voltage measuring circuit is presented.The experimental results on the model transmission lines prove it effective
出处
《电力自动化设备》
EI
CSCD
北大核心
2004年第10期24-27,共4页
Electric Power Automation Equipment
基金
吉林省教育厅科研计划项目资助[(2002)第46号]~~
关键词
架空输电线
波参数
耦合传输线
参数测量
overhead transmission lines
wave parameters
coupling transmission lines
parameter measuring
