【摘要】 这是一个基于FPGA的电力系统高速数据采集系统,针对故障录波系统的同步性、快速性和可靠性的特点,充分利用FPGA的并行处理能力,以GPS秒脉冲作为同步时钟源,对输入信号实现同步采样分时进行A/D转换,通过FPGA构成的FIFO型RAM进行大量数据的快速传输。利用FPGA硬件可编程的特点,使得整个数据采集系统的软硬件设计灵活,联系紧密,提高了系统的可靠性。在介绍了总体设计方案的基础上,阐述了软硬件设计思路,着重分析了FPGA作为协处理器在该系统中的作用。更多还原

【Abstract】 This is a high speed data acquisition system for electric power system based on FPGA,in the system,characteristic is contrasted which is synchronicity,fleetness and reliability for fault record system,making the best of the parallel processing ability of FPGA,the GPS second-pulse is used as synchronism clock source,input signals are sampled by synchronization and converted to data by A/D converter one by one,large amount of data from A/D converter is transferred fleetly by the First-In First-Out RAM which is made up on FPGA chip.Making use of the programmable FPGA,the software and hardware design of the data acquisition system is flexible,and the system reliability has been improved.Based on the introduction of the whole project,the idea of software and hardware design is explained,the function which FPGA is used as the coprocessor in the system is especially stressed.更多还原