智能变电站继电保护及自动化系统的可靠性研究

Research on the reliability of relay protection and automation system in intelligent substation

微机继电保护系统是一种在继电自动化系统中广泛应用的技术,主要功能是确保电力系统的安全运行。在实际运行中,误触发成了微机继电保护系统无法避免的问题之一。误触发的主要原因可以通过统计数据分析得到,这也是评估微机继电保护系统可靠性指标的重要方法之一。为了保证微机继电保护系统的无故障运行,微机处理器系统的可靠性,文章提出了半间隔法、故障诊断等方法,以便在出现故障时可以及时采取最合适的修复措施。另外,微机继电保护系统的可靠性还依赖于电磁状态和接地系统等因素,因此,在设计和运行过程中需要考虑相关的成本依赖性问题。

The microcomputer relay protection system is a widely used technology in relay automation systems,whose main function is to ensure the safe operation of the power system.However,in practical operation,false triggering has become one of the unavoidable problems in microcomputer relay protection systems.The main reasons for false triggering can be obtained through statistical data analysis,which is also an important method for evaluating the reliability indicators of microcomputer relay protection systems.In order to ensure the fault-free operation of microcomputer relay protection systems,to ensure the reliability of the microcomputer processor system,methods such as half interval method and fault diagnosis have also been proposed,so that the most appropriate measures can be taken in a timely manner to repair faults.