自适应控制在电力系统继电保护中的应用

Adaptive control applied to protective relaying of electric power system

继电保护需要适应频繁变化的电力系统运行方式 ,正确切除发生各种故障的设备 ,而自适应控制能在参数变化时保持系统的标准特性 ,因此 ,可形成以自适应方式控制的继电保护———自适应保护。为此 ,介绍了自适应控制系统的模型 ,并以距离保护为例 ,说明运用自适应控制解决继电保护整定值设置和调整等问题的方法 ,给出自适应距离保护模型。

To adapt to the constantly changing operation modes of power system and correctly switch off various faulty equipment, adaptive control shall be applied to protective relaying to maintain standard system features even when parameters have changed. This paper describes the model of adaptive control system and, taking distance protection as an example, illustrates the methods to handle problems such as relay setting adjustment. Meanwhile, the model of adaptive distance protection is presented.