电力系统自动化
電力繫統自動化
전력계통자동화
Automation of Electric Power Systems
2015年
19期
155-159
,共5页
分散控制系统%汽轮机调节系统%强迫功率振荡%运算周期
分散控製繫統%汽輪機調節繫統%彊迫功率振盪%運算週期
분산공제계통%기륜궤조절계통%강박공솔진탕%운산주기
distributed control system%steam turbine governing system%forced power oscillation%operating period
针对一起由分散控制系统设置错误引发的机组安全事故,分析了事故的发生原因,并建立了汽轮机调节系统模型,利用实时仿真平台再现了事故经过。进一步地,利用电力系统综合分析程序PSASP 建立的单机无穷大系统研究并分析了此时分散控制系统故障引起电力系统强迫功率振荡的可能性。研究结果表明,分散控制系统故障可能造成电力系统强迫功率振荡,且分散控制系统控制器的运算周期影响了强迫功率振荡幅度。
針對一起由分散控製繫統設置錯誤引髮的機組安全事故,分析瞭事故的髮生原因,併建立瞭汽輪機調節繫統模型,利用實時倣真平檯再現瞭事故經過。進一步地,利用電力繫統綜閤分析程序PSASP 建立的單機無窮大繫統研究併分析瞭此時分散控製繫統故障引起電力繫統彊迫功率振盪的可能性。研究結果錶明,分散控製繫統故障可能造成電力繫統彊迫功率振盪,且分散控製繫統控製器的運算週期影響瞭彊迫功率振盪幅度。
침대일기유분산공제계통설치착오인발적궤조안전사고,분석료사고적발생원인,병건립료기륜궤조절계통모형,이용실시방진평태재현료사고경과。진일보지,이용전력계통종합분석정서PSASP 건립적단궤무궁대계통연구병분석료차시분산공제계통고장인기전력계통강박공솔진탕적가능성。연구결과표명,분산공제계통고장가능조성전력계통강박공솔진탕,차분산공제계통공제기적운산주기영향료강박공솔진탕폭도。
First,the causes of a safety accident induced by a mistake in the set-up of the distributed control system (DCS) are analyzed,and a model for steam turbine governing system is developed.Then the whole accident is reproduced by a real-time simulation platform.Furthermore,a single machine infinite bus system based on PSASP is used to study and analyze the possibility of forced power oscillation due to DCS at the moment.Research results show that the fault of DCS may trigger forced power oscillation in the power system,and the operating period of DCS has an important influence on forced power oscillation amplitude.