牵引变电站负荷特性记录装置的设计与开发

介绍了以数字信号处理器（digital signal processor，DSP）的多功能集成板卡为核心而开发的牵引变电站负荷特性数据采集装置。该装置充分利用逻辑可编程器件（complex programmable logic device，CPLD）高速、灵活、可编程的特点，采用“同时采集，分时转换”的采样处理方式，实现了具有严格时序和逻辑要求的A／D采样转换控制。该装置具有存储容量大、功能齐全、调试简单、测量精度高的特点，具有较强的通用性，不仅满足牵引变电站数据采集性能的要求，还可应用于各种高速高精度数据采集和数据处理的环境中。

Design and Development of Load Characteristic Recorder for Tractive Substation

The paper introduces the data acquisition device for the load characteristic of tractive transformer substation.The device is based on the multifunctional integration board of digital signal processor(DSP).The device makes use of the characteristics of complex programmable logic device(CPLD),such as high speed,agility and programmability,utilizes the way of "sampling synchronously,converting asynchronously",and achieves the controlling of A/D sampling and converting that needs strict schedule and logic. The device is characterized by great capability,well-rounded function,easy debugging and high precision for measurement,and is of high universality.It can not only satisfy the requirement of data acquisition capability for tractive transformer substation,but also can be applied to various data acquisition and data processing conditions that need high speed and high precision.