CAJ | 학술논문

对智能变电站可靠性的分析应该从检修策略和组网方式2个维度进行。首先分析了智能变电站的5种基本维修任务，并根据延迟时间模型，建立了智能变电站的2种检修策略模型；然后将可靠性框图方法与蒙特卡洛仿真方法相结合，实现了对不同检修策略的可靠性仿真，克服了因状态空间爆炸而导致的求解难题；最后，以直采直跳、直采网跳和网采网跳等组网方式的智能变电站保护系统为研究对象，以常规变电站为比较基准，对智能变电站保护系统的可用性进行了详细的分析与讨论。研究结果对今后智能变电站的设计、施工和运维具有一定的参考价值。
대지능변전참가고성적분석응해종검수책략화조망방식2개유도진행。수선분석료지능변전참적5충기본유수임무，병근거연지시간모형，건립료지능변전참적2충검수책략모형；연후장가고성광도방법여몽특잡락방진방법상결합，실현료대불동검수책략적가고성방진，극복료인상태공간폭작이도치적구해난제；최후，이직채직도、직채망도화망채망도등조망방식적지능변전참보호계통위연구대상，이상규변전참위비교기준，대지능변전참보호계통적가용성진행료상세적분석여토론。연구결과대금후지능변전참적설계、시공화운유구유일정적삼고개치。
The reliability analysis of smart substation should be carried out from the two dimensions of maintenance strategy and network architecture. Five basic repair tasks of smart substation are analyzed in this paper, and two kinds of maintenance strategy model of smart substation based on the delay time model are set up. Then, via combining the method of reliability block diagram and Monte Carlo simulation, reliability simulation with different maintenance strategies is conducted to solve the problem of state space explosion. Finally, taking the protection system of smart substation of different network architectures as the research object and the conventional substation as the baseline, the availability of the protection system of smart substation is analyzed and discussed in detail. The research results have certain reference value for the future design, construction, operation and maintenance of smart substation.