CAJ | 학술논문

智能电网是我国电力工业发展的新方向,继电保护作为保障电网安全运行的第一道防线,需要积极适应电网变革.介绍了我国智能电网建设的特殊问题,包括跨区域交直流复杂电网、新能源电力的调度控制和就地平衡以及需求侧对电网的支持响应等方面.分析了超/特高压输电、电子器件渗透和网络拓扑异变对继电保护造成的影响,指出继电保护的几个关键研究方向以及新形势下研究应用广域保护的重要意义.最后对广域保护的概念、功能定位和系统构成模式进行讨论,并分析了广域保护主要算法的原理和特点.
지능전망시아국전력공업발전적신방향,계전보호작위보장전망안전운행적제일도방선,수요적겁괄응전망변혁.개소료아국지능전망건설적특수문제,포괄과구역교직류복잡전망、신능원전력적조도공제화취지평형이급수구측대전망적지지향응등방면.분석료초/특고압수전、전자기건삼투화망락탁복이변대계전보호조성적영향,지출계전보호적궤개관건연구방향이급신형세하연구응용엄역보호적중요의의.최후대엄역보호적개념、공능정위화계통구성모식진행토론,병분석료엄역보호주요산법적원리화특점.
Smart grid is a new development direction of power industry in China. As the first defense line of power system, relay protection must adapt the revolution of power grid. Firstly, some special problems of the smart grid construction are introduced. These problems include complex cross-regional AC/DC power grid, dispatching control and local balance of new energy power, and electric power demand side response, etc. The influential factors for relaying, such as UHV transmission, electronic devices penetration and variation of network topology, are also investigated. Several key research directions of relay protection are pointed out, and the importance of wide area protection is emphasized. Finally, the concept, function and system structure of wide area protection are discussed, and the principle and features are analyzed.