电力系统自动化
電力繫統自動化
전력계통자동화
AUTOMATION OF ELECTRIC POWER SYSTEMS
2012年
8期
66-70,76
,共6页
刘登涛%章坚民%马国梁%占震滨%张云雷%吴光中
劉登濤%章堅民%馬國樑%佔震濱%張雲雷%吳光中
류등도%장견민%마국량%점진빈%장운뢰%오광중
热电厂%能效监测平台%单抽和双抽机组%M5’模型树%能耗特性曲线
熱電廠%能效鑑測平檯%單抽和雙抽機組%M5’模型樹%能耗特性麯線
열전엄%능효감측평태%단추화쌍추궤조%M5’모형수%능모특성곡선
Key words: thermal power plant%energy efficiency monitoring platform%single and double extraction units%M5' model tree%energy consumption characteristic curve
基于省级热电厂能效监测平台的运行数据,采用M5’模型树方法在线识别和绘制了较为精确、详细的单抽和双抽机组工况图。该方法采用分段式线性拟合,自动优选分段数并逼近可能非凸或非连续的非线性耗量曲线。利用该方法进行机组定期滚动识别对比,可以更好地察觉机组特性的变化,为机组能效监视提供可视化感知工具,为测量数据提供校验依据,并为电厂热电负荷优化分配和电网节能调度提供精确的分段线性化机组特性函数。
基于省級熱電廠能效鑑測平檯的運行數據,採用M5’模型樹方法在線識彆和繪製瞭較為精確、詳細的單抽和雙抽機組工況圖。該方法採用分段式線性擬閤,自動優選分段數併逼近可能非凸或非連續的非線性耗量麯線。利用該方法進行機組定期滾動識彆對比,可以更好地察覺機組特性的變化,為機組能效鑑視提供可視化感知工具,為測量數據提供校驗依據,併為電廠熱電負荷優化分配和電網節能調度提供精確的分段線性化機組特性函數。
기우성급열전엄능효감측평태적운행수거,채용M5’모형수방법재선식별화회제료교위정학、상세적단추화쌍추궤조공황도。해방법채용분단식선성의합,자동우선분단수병핍근가능비철혹비련속적비선성모량곡선。이용해방법진행궤조정기곤동식별대비,가이경호지찰각궤조특성적변화,위궤조능효감시제공가시화감지공구,위측량수거제공교험의거,병위전엄열전부하우화분배화전망절능조도제공정학적분단선성화궤조특성함수。
The MS' model tree algorithm is used to on-line identify and draw the accurate and detailed single and double extraction unit working condition charts. This method automatically and optimally selects the number of sections and approaches the nonlinear consumption curves might be with non-convex and discontinuous property using piecewise linearization fitting. By comparison of scrolling identified characteristics at a fixed period, the change of unit can be detected and an awareness visualization tool of unit can he achieved. This method can provide the check basis for measured data and provide accurate piecewise linearization function of unit characteristics for load optimal sharing of thermal power plant and energy saving scheduling of the power grid.