供用电
供用電
공용전
Distribution & Utilization
2015年
10期
76-80
,共5页
李鄢%姚伟瑾%厍翠楼%刘国藩
李鄢%姚偉瑾%厙翠樓%劉國藩
리언%요위근%사취루%류국번
PLC%触摸屏%控制方法%开关量信号%模拟量信号%周期轮换
PLC%觸摸屏%控製方法%開關量信號%模擬量信號%週期輪換
PLC%촉모병%공제방법%개관량신호%모의량신호%주기륜환
PLC%touching screen%control method digital signal%analog signal%cycle rotation
文章对继电器控制模式的变压器强迫油循环风冷控制系统进行分析,提出了以PLC和触摸屏作为主控单元的一种新控制方法,该方法通过实时采集变压器顶层油温模拟量信号(Pt100)、油温开关量信号,综合控制冷却容量随变压器顶层油温变化而自动调节,避免了变压器在低温低负荷下造成油温偏低和在高温大负荷下造成油温过高的情况发生,同时实现了周期轮换和风冷控制系统的自诊断功能。
文章對繼電器控製模式的變壓器彊迫油循環風冷控製繫統進行分析,提齣瞭以PLC和觸摸屏作為主控單元的一種新控製方法,該方法通過實時採集變壓器頂層油溫模擬量信號(Pt100)、油溫開關量信號,綜閤控製冷卻容量隨變壓器頂層油溫變化而自動調節,避免瞭變壓器在低溫低負荷下造成油溫偏低和在高溫大負荷下造成油溫過高的情況髮生,同時實現瞭週期輪換和風冷控製繫統的自診斷功能。
문장대계전기공제모식적변압기강박유순배풍랭공제계통진행분석,제출료이PLC화촉모병작위주공단원적일충신공제방법,해방법통과실시채집변압기정층유온모의량신호(Pt100)、유온개관량신호,종합공제냉각용량수변압기정층유온변화이자동조절,피면료변압기재저온저부하하조성유온편저화재고온대부하하조성유온과고적정황발생,동시실현료주기륜환화풍랭공제계통적자진단공능。
The relay-type mode control system of force d oil cycle air cooling transformer is analyzed,and a new method which take PLC and touching screen as the main control unit is proposed.The integrated control cooling capacity regulates automatically based on the real-time collecting analog signal(Pt100) and digital signal of top oil temperature of transformer,preventing the transformer oil from too high temperature during hot and peak load period,or too low temperature during cold and light load,and achieving cycle rotation and self-diagnostic function of the cooling control system.