【摘要】：本文首先在建立防洪、興利、生態(tài)以及排沙減淤多目標(biāo)優(yōu)化調(diào)度模型基礎(chǔ)上,針對(duì)水庫水沙聯(lián)合優(yōu)化存在的矛盾,將其簡化為以發(fā)電量最大、泥沙淤積量最小兩目標(biāo)優(yōu)化問題,并提出基于改進(jìn)多目標(biāo)動(dòng)態(tài)規(guī)劃迭代算法的求解方法,避免了多次采用一維泥沙數(shù)學(xué)模型迭代計(jì)算的缺點(diǎn),可快速生成模型的非劣解集；其次,針對(duì)水庫水沙聯(lián)合優(yōu)化調(diào)度方案評(píng)價(jià)的復(fù)雜性及單一評(píng)價(jià)方法存在的局限性,以向量夾角和最小為目標(biāo),提出了基于向量夾角和最小的組合賦權(quán)方法與評(píng)價(jià)方法；最后,將模型和方法應(yīng)用于三峽水庫的實(shí)例驗(yàn)證,結(jié)果表明：改進(jìn)的多目標(biāo)動(dòng)態(tài)規(guī)劃迭代算法可實(shí)現(xiàn)發(fā)電量和泥沙淤積計(jì)算的有機(jī)結(jié)合,獲取水庫水沙聯(lián)合優(yōu)化調(diào)度模型的非劣解集,同時(shí)驗(yàn)證了基于向量夾角和最小的組合賦權(quán)方法與評(píng)價(jià)方法的有效性。為水庫水沙聯(lián)合優(yōu)化調(diào)度及評(píng)價(jià)理論的研究提供了理論參考。
[Abstract]:In this paper, on the basis of establishing multi-objective optimal operation model of flood control, profit-bearing, ecology and sediment reduction, aiming at the contradiction existing in the joint optimization of reservoir water and sediment, this paper simplifies it to the two-objective optimization problem of maximum power generation and minimum sediment deposition. The solution method based on the improved multi-objective dynamic programming iterative algorithm is proposed, which avoids the disadvantage of iterative calculation of one-dimensional sediment mathematical model, and can quickly generate the non-inferior solution set of the model. Secondly, aiming at the complexity of the evaluation of the combined optimal operation scheme of reservoir water and sediment and the limitation of the single evaluation method, a combination weighting method and evaluation method based on vector angle and minimum is put forward for the purpose of vector angle and minimum. Finally, the model and method are applied to the case study of the three Gorges Reservoir. The results show that the improved iterative algorithm of multi-objective dynamic programming can realize the organic combination of electricity generation and sediment deposition calculation. The non-inferior solution set of the combined optimal operation model of reservoir water and sediment is obtained, and the effectiveness of the combined weighting method and the evaluation method based on vector angle and minimum is verified at the same time. It provides a theoretical reference for the study of combined optimal operation and evaluation theory of reservoir water and sediment.
【學(xué)位授予單位】：華北電力大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TV697.1

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