基于DSP的紧凑型电力故障录波仪的研究

Study of compact electric power fault recorder based on DSP

为适应中小型电力监控装置需求的增长,本文设计了一种紧凑型故障录波仪,其应用基2的FFT实现快速滤波算法,采用硬件测频电路实现采样频率自适应,同时结合DSP技术、网络通讯技术、多层PCB等高新技术,采用双CPU控制策略,并利用双口RAM实现双机快捷通讯,较好地解决了数据高速采集、快捷稳定通讯,抗强电磁干扰和抗恶劣环境等工程技术难题。

A compact fault recorder is designed in this paper to adapt to the increase of the medium and small-sized power monitor equipment, the fast wave filter is realized by FFT based 2, adaptive sampling frequency is achieved by using hardware frequency testing circuit, combined with the DSP technology, network communication technology, multilayer PCB new high technology and so on, double CPU control strategy is used and the Dual-Port RAM is used to realize the high speed communication between the two CPUs, it is better resolved the engineer technique problems such as fast data sampling, fast and stable communication, strong EMI counteract and atrocious environment counteract and so on.