CAJ | 학술논문

同塔多回输电线路故障情况异常复杂,对现有保护原理影响严重.研究同塔多回输电线路的动态模拟方法,实现同塔多回输电线路的物理模拟对于研究线路保护原理、开发线路保护装置和测试保护性能意义重大.文章总结了现有同塔双回输电线路的物理模拟方法,分析了现有方法用于模拟同塔多回输电线路的可行性,进而提出了采用序参数等值法进行同塔多回输电线路模拟的理论方法.考虑模拟系统与实际系统的差别,文章提出了模拟过程中互感分流元件的应用方法,并以回路数3为例论述了具体实现方法,最后总结了该方法的优点、应用特点及应用中需注意的问题,为实现同塔多回线路物理模拟创造了条件.
동탑다회수전선로고장정황이상복잡,대현유보호원리영향엄중.연구동탑다회수전선로적동태모의방법,실현동탑다회수전선로적물리모의대우연구선로보호원리、개발선로보호장치화측시보호성능의의중대.문장총결료현유동탑쌍회수전선로적물리모의방법,분석료현유방법용우모의동탑다회수전선로적가행성,진이제출료채용서삼수등치법진행동탑다회수전선로모의적이론방법.고필모의계통여실제계통적차별,문장제출료모의과정중호감분류원건적응용방법,병이회로수3위례논술료구체실현방법,최후총결료해방법적우점、응용특점급응용중수주의적문제,위실현동탑다회선로물리모의창조료조건.
@@@@ The situations of faults occurred in parallel multi-circuit transmission lines on the same tower are very complicated and affect principles of existing protective relay seriously. The study on dynamic simulation methods and the implementation of physical simulation for parallel multi-circuit transmission lines on the same tower are of great significance for the research on the principle of transmission line protection, the development of line protection devices and the testing of protective relay. Existing physical simulation methods for parallel multi-circuit transmission lines on the same tower are summarized, and the feasibility of applying existing physical methods to the simulation of parallel multi-circuit transmission lines on the same tower is analyzed, and then a theoretical method, in which the sequence parameter equivalence is utilized to simulate parallel multi-circuit transmission lines on the same tower, is proposed. Considering the differences between simulated power system and actual power system, an application method of mutual inductance components during simulation process is put forward, and taking three circuit transmission lines on the same tower for example, the concrete implementation of the proposed method is expounded. The advantages and the features of the proposed method as well as the problems to be paid attention to during the simulation process are presented.