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우주희(Joo-Hee Woo),최인규(In-Kyu Choi),박두용(Doo-Young Park),김종안(Jong-An Kim) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
국내의 500㎿급 화력발전소의 터빈제어 기능을 검증하기 위해 시뮬레이터를 활용하여 시험하는 구체적인 절차 및 방법에 대해 제시하고자 한다.
우주희(Joo-Hee Woo),김종안(Jong-An Kim),최인규(In-Kyu Choi) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
국내의 한 증기터빈 발전소의 터빈제어기를 개조하기 위해 발전기가 계통병입된 후 발전소 운전상태의 급변이나 다른 외부 조건에 의해 필요로 하는 각종 출력제한 기능을 구현하는데 필요한 알고리듬을 분석 및 제시하였다.
우주희(Joo-Hee Woo),김종안(Jong-An Kim),최인규(In-Kyu Choi),김병철(Byoung-Chul Kim),유광명(Kwang-Myung Yu) 대한전자공학회 2015 대한전자공학회 학술대회 Vol.2015 No.6
We developed a governing control system for a hydraulic turbine power plant. In this paper, we showed a good result compared with an existing analog turbine control system by computer simulation.
우주희(Joo-Hee Woo),최인규(In-Kyu Choi),박두용(Doo-yong Park),김종안(Jong-An Kim) 대한전기학회 2011 전기학회논문지 Vol.60 No.4
A turbine control system which has been operated for years in a nuclear power plant was retrofitted with a newly developed digital control system. After completion of the retrofit, turbine valve tests were performed to ensure the integrity of each valve's control function. The sequence of each valve test is composed of a closing process and a reopening process. To minimize megawatt variation which normally occurs during the test sequence, we employed a kind of compensator algorithm in the new digital control system which also have been used in the old system. There were difficulties finding optimal parameter settings for our new compensator algorithm because the power plant didn't allow us to perform necessary tuning procedures while the turbine is on load operation. Therefore an alternative measure for the compensator tuning which is independent of the turbine actual operation had to be implemented. So, a process model for the test was required to overcome this situation. We analyzed the operation data of the test and implemented the process model by use of input and output variable relations. Also we verified the process model by use of another condition's operating data. The result shows that the output of model is similar to the actual operation data.