CAJ | 학술논문

近年来，水电站在运行过程中因定子接地故障而暂停运行的事故时有发生，给电网的安全带来巨大隐患。对水轮发电机定子接地故障进行了分析，得出故障是由定子铁芯片位移造成的结论。鉴于此，设计了采用光功率监测法实现定子铁芯位移在线监测的系统，详细讲述了该系统的实现原理及架构，并通过实验验证了该系统的可行性。
근년래，수전참재운행과정중인정자접지고장이잠정운행적사고시유발생，급전망적안전대래거대은환。대수륜발전궤정자접지고장진행료분석，득출고장시유정자철심편위이조성적결론。감우차，설계료채용광공솔감측법실현정자철심위이재선감측적계통，상세강술료해계통적실현원리급가구，병통과실험험증료해계통적가행성。
In recent years, it often happens that the water power station suspends in operations due to the sta?tor attach to the ground, which brings about great potential security problems to the Grid. This paper analyses the reasons for the breakdown of the hydro generator which is directly caused by stator touchdown and then finds that is led by stator laminations' displacement. At the same time, this article shows a kind of online monitoring system for stator iron core displacement, depending on the optical power detection technology. The description of the system in?cludes both the theory and the actual system frame. After that, there are experimental results which can demonstrate the feasibility of the monitoring system.