基于可编程片上系统的电能质量检测系统

Power Quality Detection System Based on SOPC

在复合小波理论的基础上,设计了一个基于可编程片上系统(SOPC)的电能质量检测系统。选择ALTERA公司的EP2C5作为主芯片,实现复合小波算法,完成电能质量的检测。设计芯片的外围硬件电路,包括芯片配置电路、存储扩展电路和通信电路等。构建Nios Ⅱ软核硬件及采用硬件描述语言编写一些功能模块,在Nios Ⅱ IDE软件中编写软核程序,选用LPC2131作为辅助芯片,完成数据的采集。

On the basis of multiwavelets theory, a power quality detection system was designed based on SOPC. The EP2C5 of ALTERA company was chosen as the main chip,which composited multiwavelets algorithms, and realized power quality detection. The design of the external hardware circuit included the chip allocation circuit,storage circuit and communications circuit The Nios II soft-kernel hardware was built and some modules were made by VHDL language. In Nios II IDE software, the program of soft-kernel was written. LPC2131 was chosen as auxiliary chip to collect the voltage and current.