基于DSP的矿用变压器继电保护装置研究

Research on Relay Protection Device of Mine Transformer Based on DSP

古交西山发电站电磁型继电保护装置已使用多年,设备老化容易造成安全隐患。提出了基于DSP的继电保护装置设计,通过分析过流保护原理,采用聚类算法对过流故障判断进行识别,并采用TMS320F2812芯片等对设备进行硬件设计。通过实验表明,采用聚类算法的DSP继电保护装置能有效实现过电流故障的判别,过电流误差比原设备减小0.7%,实现了主变保护。

The electromagnetic relay protection device of Gujiao Xishan Power Station has been used for many years,and the aging of equipment is likely to cause safety hazards.This paper proposed the design of relay protection device based on DSP.By analyzing the principle of overcurrent protection,the clustering algorithm is used to identify the fault of overcurrent fault,and the hardware design of the device is carried out by using TMS320F2812 chip.Experiments showed that the DSP relay protection device using clustering algorithm can effectively realize the overcurrent fault identification.The overcurrent error is reduced by 0.7%compared with the original equipment,and the main transformer protection is realized.