基于FPGA数据采集与共享的两种记录方式并存的电力系统录波器研制

摘要

两种录波方式并存的电力系统录波器综合了传统触发式录波和长过程录波两种记录方式,采用相互独立的记录系统。基于FPGA (Field Programmable Gate Array)数据采集与传输技术使得两个独立的录波系统共享交流采集回路。系统采用FPGA + DSP + POWERPC嵌入式硬件平台和VxWorks嵌入式实时操作系统。FPGA协调硬件系统工作时序,负责高速的数据采集和通讯,提供高速双口RAM;DSP负责数据运算及启动判断;POWERPC负责大容量高速数据存储。两种录波方式并存的电力系统录波器很好的满足了广东电网提出的故障录波技术规范。 The power system recorder with two recording ways integrates traditional trigger fault recorder for transient signal and recorder for continuous signal. The two recorder system is entirely independent; it shares sampling data by the sampling and transmitting based FPGA (Field Programmable Gate Array). Hardware system bases structure of FPGA + DSP + POWERPC. Software bases VxWorks. FPGA coordinates hardware system timing control and takes in charge of sampling and communication and provide dualport RAM. DSP takes in charge of calculation. POWERPC take in charge of store data. The power system recorder with two recording ways meets Guangdong Power technical specification.