分布式发电系统中基于FPGA控制的采样设计  

Design of Sampling Based on FPGA Control in Distributed Generation System

作　　者：殷杰[1] 赵庚申[1] 赵耀[1] 陈曦[1] 赵星宇[1] 程如岐[1] 郭天勇[1] 

机构地区：[1]南开大学光电子薄膜器件与技术研究所,光电子薄膜器件与技术天津市重点实验室,天津300071

出　　处：《南开大学学报（自然科学版）》2013年第2期43-48,共6页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：天津市基础重点基金(11JCZDJC22900)

摘　　要：设计了一种基于FPGA控制的AD采样电路.介绍了采样芯片内部各驱动信号作用及时序关系,详细分析了使用FPGA控制AD芯片实现时分复用的采样设计以及在FPGA中对采样结果进行的软件数字滤波、过零检测、离散傅里叶变换等数据处理过程,通过实验检验了这种采样电路的正确性和实用性.After introducing advantages of FPGA working as control circuit＇s CPU in the distributed generation system, a AD sampling circuit based on FPGA control is designed ac- cording to sampling chip characteristics and sampling signal＇s electrical characteristics of the control system. Drive signal function and temporal relations of the sampling chip is introduced. The software control strategy based on FPGA and date processing such as digital filter, the ze- ro examination, discrete Fourier transfrom and so on are analyzed in datails. And then the ex- perimental proved the sampling circuit is correct and practical.

关 键 词：FPGA AD 多通道采样 时分复用 

分 类 号：TM76[电气工程—电力系统及自动化]