基于DSP2812平台的数字式测控保护综合装置设计

针对基于DSP2812平台的中低压电网设备的数字式测控保护综合装置的设计进行了研究,提出了一种采用双CPU结构的测控保护装置的硬件结构。提出了一种采用滑动数据窗的算法,将由连续3个数据窗的数据经过快速傅里叶变换后得到的结果进行处理,以实现消除衰减直流量对计算结果的影响。该综合测控保护装置的软件系统由自检模块、数据处理模块、动作判断模块、人机接口模块、通信模块5部分构成,对该装置中采用的检测算法的软件流程进行了说明,并通过仿真计算进行了验证。

Digital general measuring and protection device based on DSP2812 platform

The design of DSP2812 platform based digital general measuring and protection device for mid-and low-voltage power system equipment is researched.A hardware structure of dual-CPU structure is proposed.A method to eliminate the influence of decaying DC component on calculation results is presented,which processes the results of three continuous data windows with fast Fourier transform.Its software system is composed of self-check module,data processing module,action determination module,human-machine interface module and communication module.The flowchart of measuring algorithm is illuminated and the algorithm is verified with simulative calculation.