Performance upgrade and analysis report for nuclear safety related emergency diesel generator speed control system

원전 안전등급 비상디젤발전기 속도제어시스템 성능개선 및 분석에 관한 연구

The paper is final report for speed control upgrade and analysis report which recently performed on PWR NPP safety related EDG KHNP Ulchin NPP No.2 Unit. The upgraded system includes more beneficial function like as 'Slow start with starting ramp', 'Generator load sensing & control capability' and 'Emergency ramp during slow start'. This paper shows functional operation of slow start regime according to NRC regulatory guide which guide regulation to NPP safety related environment.