对自适应电流速断保护的评价

Evaluation of Adaptive Current Instantaneous Trip Protection

简要说明了自适应电流速断保护的构成原理及特点 ,它能根据电力系统当前实际运行方式和故障状态实时、自动整定计算 ,无需人工参与 ;求系统综合阻抗时 ,引入电压量 ,采取了电压回路断线的有效对策 ,确保自适应电流速断保护在电压回路断线时仍能可靠动作。将其与传统电流速断保护、电流闭锁电压速断保护及距离保护进行了比较 ,并对自适应电流速断保护性能进行了评价 ,阐明了其优越性及适用条件。

The principle and features of the adaptive current instantaneous trip protection (AITP) is briefly introduced.According to current operational mode and fault state of electric power system,it can automatically calculate the settings in real time without any intervention.The voltage is used when the integrated system impedance is calculated.An effective measure is adopted to ensure the proper functioning of AITP when the voltage circuit is broken.The comparison of AITP is presented with the conventional current instantaneous trip protection, voltage instantaneous trip with current blocking and distance protection,and the evaluation of AITP is made on its superiority and application conditions.