本文選題：冷熱電聯(lián)供系統(tǒng)　切入點：生物質(zhì)能　出處：《山東大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著能源短缺與環(huán)境污染問題日趨嚴(yán)重,冷熱電聯(lián)供系統(tǒng)以其節(jié)能、環(huán)保、高效的特點而備受關(guān)注。其中,采用生物質(zhì)能與太陽能為驅(qū)動能源的冷熱電聯(lián)供系統(tǒng)在實現(xiàn)能量梯級利用的基礎(chǔ)上,更可實現(xiàn)對可再生能源的充分利用,是未來能源系統(tǒng)發(fā)展的重要方向。本文主要圍繞基于生物質(zhì)能與太陽能的冷熱電聯(lián)供系統(tǒng),提出針對該系統(tǒng)的優(yōu)化配置與調(diào)度方法,有效提升了系統(tǒng)綜合性能。本文的主要研究內(nèi)容如下:首先,提出了一種基于生物質(zhì)能與太陽能的冷熱電聯(lián)供系統(tǒng)結(jié)構(gòu)設(shè)計方案,分析了生物質(zhì)氣、光伏電池組、內(nèi)燃發(fā)電機組的特性,建立了內(nèi)燃發(fā)電機組全工況能量轉(zhuǎn)化模型,并構(gòu)建了聯(lián)供系統(tǒng)經(jīng)濟、環(huán)境、能源評價指標(biāo),為后文研究奠定基礎(chǔ)。其次,根據(jù)上述系統(tǒng)結(jié)構(gòu)設(shè)計方案,提出了以綜合成本年節(jié)約率、一次能源年節(jié)約率、CO2年減排率綜合最優(yōu)為目標(biāo)的優(yōu)化配置模型。以濟南市某辦公建筑物全年冷熱電負(fù)荷為例,采用遺傳算法優(yōu)化求解了各設(shè)備容量和內(nèi)燃發(fā)電機組最低負(fù)載率,驗證了所提出優(yōu)化配置方法的可行性。再次,針對本文優(yōu)化配置的系統(tǒng),提出了一種以運行成本日節(jié)約率、一次能源日節(jié)約率、CO2日減排率綜合最優(yōu)為目標(biāo)的優(yōu)化調(diào)度模型。以濟南市某辦公建筑物負(fù)荷為例,優(yōu)化求解了該系統(tǒng)在冬季、夏季、過渡季典型日的最優(yōu)逐時出力計劃,并與傳統(tǒng)運行模式比較,驗證了所提出優(yōu)化調(diào)度方法的有效性。另外,以傳統(tǒng)天然氣冷熱電聯(lián)供系統(tǒng)作為對照系統(tǒng),分析本文所設(shè)計系統(tǒng)與傳統(tǒng)系統(tǒng)在相同負(fù)荷下的經(jīng)濟、環(huán)境、能源指標(biāo),進(jìn)一步揭示了所設(shè)計系統(tǒng)的綜合性能優(yōu)勢。最后,以國家"863計劃"項目"新型生物質(zhì)氣冷熱電聯(lián)供系統(tǒng)示范應(yīng)用"為平臺,完成了冷熱電聯(lián)供系統(tǒng)優(yōu)化運行軟件,并應(yīng)用于工程實踐,驗證了本文所提出的優(yōu)化調(diào)度方法在工程應(yīng)用方面的可行性。
[Abstract]:With the problem of energy shortage and environmental pollution becoming more and more serious, the combined cooling and heat supply system has attracted much attention because of its characteristics of energy saving, environmental protection and high efficiency. Using biomass energy and solar energy as the driving energy, the combined cooling and heat supply system can realize the full utilization of renewable energy on the basis of realizing the energy cascade utilization. It is an important direction of energy system development in the future. In this paper, the optimal configuration and scheduling method for this system is proposed, which is based on biomass energy and solar energy. The main contents of this paper are as follows: firstly, a design scheme of the cooling and heat supply system based on biomass energy and solar energy is proposed, and the biomass gas and photovoltaic battery pack are analyzed. Based on the characteristics of the internal combustion generator set, the energy conversion model of the internal combustion generator unit under all working conditions is established, and the economic, environmental and energy evaluation indexes of the combined supply system are constructed, which will lay the foundation for the later study. Secondly, according to the above system structure design scheme, This paper puts forward an optimal allocation model with the goal of comprehensive annual cost saving rate, primary energy annual saving rate and CO2 annual emission reduction rate. Taking a certain office building in Jinan as an example, the annual cooling and heating power load is taken as an example. The genetic algorithm is used to optimize the capacity of each equipment and the minimum load rate of the internal combustion generator set, which verifies the feasibility of the proposed optimal configuration method. Thirdly, a daily saving rate based on the operation cost is proposed for the optimal configuration system in this paper. The optimal scheduling model of the primary energy daily saving rate and CO _ 2 emission reduction rate is an optimal scheduling model. Taking the load of a certain office building in Jinan as an example, the optimal hourly output plan of the system in winter, summer and transition season is optimized. Compared with the traditional operation mode, the effectiveness of the proposed optimal scheduling method is verified. In addition, the economy of the system designed in this paper under the same load is analyzed by taking the traditional natural gas cooling and heat combined power supply system as the control system. The environmental and energy indexes further reveal the comprehensive performance advantages of the designed system. Finally, based on the national "863 Program" project "demonstration application of a new type of biomass gas-cooled heat and power supply system", The software for optimal operation of the combined cooling and heat supply system is completed and applied to engineering practice. The feasibility of the proposed optimal scheduling method in engineering application is verified.
【學(xué)位授予單位】：山東大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TM61;TU83

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