基于DSP和ARM的电力故障录波器的设计

Design of power fault recorder based on DSP and ARM

针对目前电力故障录波器所存在的如速度慢、精度低等缺点,本文介绍了一种基于DSP和ARM的电力故障录波器的设计方案。系统采用模块化设计,包括数据采集单元和人机接口单元。数据采集单元采用了硬件同步采样,对数据采集精度有一定的提高;DSP芯片F2812和A/D芯片ADS8364保证了故障录波的高速、高效和高可靠性。人机接口部分包括S3C44B0X芯片、以太网接口、LCD接口、USB接口等,并以以太网接口为例进行了详细的设计介绍。该系统解决方案对交流电参量检测装置的设计具有一定的参考价值。

In view of the disadvantages such as low speed and low-level efficiency of the current power fault recorder, this paper introduces a design of power fault recorder based on DSP and ARM. The system adopts modularization design which includes data acquisition unit and human-machine interface unit. The accuracy of data collection are apparently improved because the data acquisition unit adopts hardware synchronous sampling; The DSP chip F2812 and A/D chip ADS8364 guarantee the high speed, the efficiency, and the reliability of fault recorder. Human-machine interface in eludes the chip S3C44BOX, the ethernet interface, the LCD interface, the USB interface, etc. And taking the ethernet interface as an example, this paper introduces the detailed design. This solution is useful to the design of the equipment of detection of AC parameters.