【摘要】 介绍了针对电力系统行波定位的特殊要求的暂态行波记录系统的设计。采用了高精度的全球定位GPS(GlobalPositionSystem)授时系统,在板的信号触发电路,并根据行波定位系统对采样数据的采样率高、容量大和分辨率高但对信号处理实时性不高的要求,采用了12位高速A/D和8位大容量缓存RAM直接接口的方式,并应用最适合高速设计的MAX7000S系列CPLD构成了数据总线控制器、地址发生及地址总线控制器,对其工作过程、器件接口,尤其是时序的配合做了详细的讨论。更多还原

【Abstract】 The design of traveling wave recorder for fault locating is introduced.GPS(Global Position System)with high precision and on-board trigging circuit are adopted.Because of high sampling speed,large storage,high resolution but general real-time performance,12-bit A/D with direct RAM accessing and high speed CPLD of MAX7000S,which con structs data bus controller and address generator,are applied.The operating principle,device interfacing and especially the timing cooperation are discussed in detail.更多还原