CAJ | 학술논문

提出一种基于负序功率方向比较原理的广域继电保护算法。根据智能电子设备（Intelligent Electric Device，IED）的安装位置，形成包含有母线及线路在内的IED关联域。系统发生故障后，通过IED在关联域内对故障信息的采集和共享，结合定义的故障判别原则，确定故障的位置；并根据IED预定的动作策略，快速地切除故障。该算法既能做系统发生故障后快速动作的主保护，同时又兼顾后备保护的功能。通过仿真验证了该算法的有效性，表明该算法可以很好地实现主保护和后备保护的功能。
제출일충기우부서공솔방향비교원리적엄역계전보호산법。근거지능전자설비（Intelligent Electric Device，IED）적안장위치，형성포함유모선급선로재내적IED관련역。계통발생고장후，통과IED재관련역내대고장신식적채집화공향，결합정의적고장판별원칙，학정고장적위치；병근거IED예정적동작책략，쾌속지절제고장。해산법기능주계통발생고장후쾌속동작적주보호，동시우겸고후비보호적공능。통과방진험증료해산법적유효성，표명해산법가이흔호지실현주보호화후비보호적공능。
A wide area protection algorithm based on negative sequence power direction comparison is proposed. The special associated intelligent electronic devices (IEDs) zones which contain buses and transmission lines are created according to the installation location of the IEDs. When a fault occurs in power network, combining the fault information collecting and sharing from associated zones with the fault discrimination principle defined in the paper, the IEDs can identify the fault position and cut the fault according to the predetermined action strategy. This algorithm can be used as a primary protection for quick action after a system fault, while possessing the back-up protection function. The results of case study show that the proposed algorithm can achieve the primary protection and back-up protection function perfectly, verifying the effectiveness of the algorithm.