本文關鍵詞：基于調(diào)優(yōu)規(guī)則和慣性權重對數(shù)遞減粒子群算法的蒸汽動力系統(tǒng)運行優(yōu)化研究　出處：《機械工程學報》2017年10期 　論文類型：期刊論文

  更多相關文章： 熱電廠 蒸汽動力系統(tǒng) 鍋爐 汽輪機 數(shù)學建模 調(diào)優(yōu)規(guī)則 對數(shù)遞減粒子群算法

【摘要】：蒸汽動力系統(tǒng)多周期運行燃料消耗量的計算方法通常先建立蒸發(fā)量與效率的關系模型,再由能量平衡方程得出。為簡化計算,建立蒸發(fā)量和燃料量關系的雙燃料鍋爐數(shù)學模型。提出背壓式、抽背式汽輪機調(diào)優(yōu)規(guī)則:如果需要同時運行兩臺以上相同型號的汽輪機,則優(yōu)先最大負荷運行數(shù)學模型斜率大的汽輪機,斜率相等則任意分配負荷。汽輪機調(diào)優(yōu)規(guī)則擴展到燃料量和蒸發(fā)量呈線性關系的單燃料鍋爐負荷分配:如果一次項系數(shù)相等,則蒸發(fā)量任意分配。否則,最大負荷運行斜率小的鍋爐。針對粒子群算法收斂速度慢、早熟的缺點,提出慣性權重對數(shù)遞減策略的粒子群算法。采用改進的粒子群算法對建立的蒸汽動力系統(tǒng)運行優(yōu)化調(diào)度的混合整數(shù)非線性規(guī)劃模型進行求解,節(jié)約了運行成本,驗證了算法的有效性和實用性。
[Abstract]:The calculation method of fuel consumption of steam power system in multi-period operation usually establishes the model of the relationship between evaporation quantity and efficiency, and then obtains from the energy balance equation to simplify the calculation. The mathematical model of double-fuel boiler is established, and the optimization rule of back-pressure and back-to-back steam turbine is put forward: if two or more steam turbines of the same type need to be operated at the same time. Then the steam turbine with high slope in the mathematical model of maximum load operation is preferred. If the slope is equal, the load distribution is arbitrary. The optimization rule of steam turbine is extended to the load distribution of single fuel boiler with linear relationship between fuel and evaporation: if the coefficient of one term is equal, the evaporation is arbitrarily distributed. Otherwise. Boiler with small slope of maximum load operation. Aiming at the shortcomings of particle swarm optimization (PSO), such as slow convergence speed and premature convergence. The improved particle swarm optimization algorithm is used to solve the mixed integer nonlinear programming model for the optimal scheduling of steam power system, which saves the running cost. The validity and practicability of the algorithm are verified.
【作者單位】： 遼寧工程技術大學機械工程學院;遼寧工程技術大學測繪與地理科學學院;遼寧工程技術大學礦業(yè)學院;
【基金】：國家自然科學基金資助項目(51574136,51504121)
【分類號】：TM621;TP18
【正文快照】： 0前言*石化企業(yè)熱電廠蒸汽動力系統(tǒng)多周期運行優(yōu)化調(diào)度問題是指在滿足系統(tǒng)和外界蒸汽、動力等需求的前提下,考慮各種機組運行特性的約束條件,通過控制鍋爐、汽輪機等單元機組的運行狀態(tài),調(diào)度它們間的負荷分配,使整個企業(yè)蒸汽動力系統(tǒng)在全周期內(nèi)安全可靠運行且費用最低。由于能

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