摘要
为避免因人为或自然因素导致的电力系统崩溃事故,设计了一种基于嵌入式系统的电力系统关键电气特性参数监控保护系统。推导了有效值与测量瞬时值之间的变换算法和电力系统电气特性参数之间算法,以110 kV微机线路保护系统为例,分别构建了基于嵌入式微处理器的特性参数状态监控软、硬件平台,相应地设计了硬件电路与软件程序。系统试运转结果验证了所设计系统能够正确地判断相关设备故障,并发送跳闸命令使设备与电力系统隔离,从而保护电力系统免遭破坏。实验结果表明:该系统对电力系统电气特性参数早期预警是有效和可用的。
In order to avoid the collapse fault in power system caused by the influence of human or natural factors,the present paper designed a monitoring protect system of key electric feature parameters in power system based on embedded system. In this paper,it deduced the transformation algorithm between the effective and instantaneous measure values and the algorithm among the electric feature parameters in power system,taken the microcomputer line protection system of a 110 kV substation as an example,it constructed the software and hardware platform of feature parameter status monitoring based on embedded microprocessor,respectively,and accordingly designed the hardware circuit and software control program. The results demonstrated that the designed system can correctly judge the fault of the related devices and send the trip command to make the isolation between the fault device and the power system so as to protect the system from being damaged. The experiment results show that it is effective and available approach to the early warning of electrical feature parameters.
作者
李会军
Hui-jun LI(School of Intelligent Manufacturing Technology, Chongqing Industry Polytechnic College, Chongqing 401120, China)
出处
《机床与液压》
北大核心
2019年第12期131-135,184,共6页
Machine Tool & Hydraulics
关键词
电气特性参数
早期预警监控
嵌入式系统
电力系统
Electric feature parameter
Early warning monitoring
Embedded system
Power system
