燃?xì)怛?qū)動冷熱電三聯(lián)供系統(tǒng)的運行優(yōu)化研究
發(fā)布時間：2018-10-29 14:50
【摘要】：冷熱電三聯(lián)供(CCHP,Combined Cooling,Heating and Power)系統(tǒng)是一種建立在能源的梯級利用概念基礎(chǔ)之上,將制冷、供熱及發(fā)電過程一體化的分布式能源系統(tǒng),不僅能夠提高能源利用效率,還有利于保護(hù)環(huán)境和降低投資成本。我國對CCHP系統(tǒng)的研究和應(yīng)用起步較晚,并且運行效果也不盡如人意,所以仔細(xì)深入研究CCHP系統(tǒng)的運行優(yōu)化,對其在我國的推廣應(yīng)用具有重要意義。首先提取出燃?xì)怛?qū)動CCHP系統(tǒng)的基本配置為:m臺動力單元設(shè)備+n臺轉(zhuǎn)換單元設(shè)備+余熱回收單元+補(bǔ)燃單元,在滿足建筑冷熱電需求的前提下,以各設(shè)備的性能參數(shù)為約束條件,建立多臺數(shù)配置形式下的運行優(yōu)化模型。選取運行費用、?效率和二氧化碳排放量為單目標(biāo)函數(shù),根據(jù)功效系數(shù)法確定進(jìn)行多目標(biāo)優(yōu)化的目標(biāo)函數(shù),則根據(jù)決策者意圖形成不同的運行策略。模型求解流程為:根據(jù)建筑的逐時負(fù)荷進(jìn)行優(yōu)化,首先采用枚舉法窮舉出動力單元各設(shè)備發(fā)電量的所有組合形式,再用內(nèi)點法計算任一組合形式下補(bǔ)燃單元的最小耗氣量,從而計算出能源消耗量,根據(jù)其對應(yīng)的目標(biāo)函數(shù)值進(jìn)行優(yōu)化。在MATLAB的GUI工具箱中編制可視化程序,通過能源價格、轉(zhuǎn)換因子和逐時負(fù)荷等參數(shù)的輸入,優(yōu)化得到系統(tǒng)在各運行策略下的最優(yōu)能耗量和目標(biāo)函數(shù)值。以天津市某內(nèi)燃機(jī)+直燃機(jī)CCHP系統(tǒng)為研究對象,在eQUEST軟件中對其所攜帶建筑的逐時冷、熱、電負(fù)荷進(jìn)行模擬,根據(jù)其配置形式和廠家提供的設(shè)備性能參數(shù),得到該系統(tǒng)的運行優(yōu)化模型。將2014年初調(diào)試數(shù)據(jù)與模型運算數(shù)據(jù)進(jìn)行對比,誤差在±15%的范圍內(nèi),驗證了設(shè)備性能參數(shù)的準(zhǔn)確性。根據(jù)內(nèi)燃機(jī)性能,舉例說明不同負(fù)荷情況下各運行策略的差異,從電負(fù)荷相對較大和冷熱負(fù)荷相對較大兩個方面進(jìn)行分析。采用該運行優(yōu)化模型分別對冬夏季各運行策略的能源消耗量和目標(biāo)函數(shù)值進(jìn)行求解,將結(jié)果與分供系統(tǒng)對比,夏季的系統(tǒng)運行效果要優(yōu)于冬季,并根據(jù)典型日負(fù)荷情況進(jìn)行逐時能耗量的分析。在此基礎(chǔ)上,對突出影響該系統(tǒng)運行經(jīng)濟(jì)性的氣電價格進(jìn)行分析,得到不同氣電價格比下經(jīng)濟(jì)性運行策略的能源消耗量。并且在目前的能源價格下,探討在發(fā)電上網(wǎng)運行模式下,上網(wǎng)電價對系統(tǒng)運行經(jīng)濟(jì)性的影響。通過該模型在具體工程中的實際應(yīng)用,凸顯了其對燃?xì)怛?qū)動CCHP系統(tǒng)運行優(yōu)化的普適性意義,為今后多臺數(shù)配置形式下系統(tǒng)的優(yōu)化運行奠定了基礎(chǔ)。
[Abstract]:The CCHP,Combined Cooling,Heating and Power) system is a distributed energy system based on the concept of cascade utilization of energy, which integrates refrigeration, heating and power generation process, which can not only improve the efficiency of energy utilization. It also helps to protect the environment and reduce investment costs. The research and application of CCHP system in our country started late, and the operation effect is not satisfactory. Therefore, it is of great significance to study the operation optimization of CCHP system carefully and deeply for its popularization and application in our country. Firstly, the basic configuration of gas-driven CCHP system is as follows: M power unit equipment, n transfer unit equipment, waste heat recovery unit supplementary combustion unit, under the premise of meeting the demand of building cooling, heat and electricity. Taking the performance parameters of each equipment as the constraint condition, the operation optimization model under the configuration of multiple sets is established. Select the running cost,? Efficiency and carbon dioxide emissions are single-objective functions. According to the efficiency coefficient method, the objective function of multi-objective optimization is determined, and different operation strategies are formed according to the intention of the decision makers. The model solution flow is as follows: according to the hourly load of the building, firstly, all the combined forms of power generation of each equipment of the power unit are given by enumeration method, and then the minimum gas consumption of the supplementary combustion unit under any combination form is calculated by the internal point method. The energy consumption is calculated and optimized according to the corresponding objective function. A visual program is compiled in the GUI toolbox of MATLAB. By input of energy price, conversion factor and hourly load, the optimal energy consumption and objective function of the system under various operation strategies are optimized. Taking the CCHP system of an internal combustion engine direct-gas engine in Tianjin as the research object, the hourly cooling, heat and electric load of the building carried by the engine was simulated in eQUEST software, and according to its configuration form and the equipment performance parameters provided by the manufacturer, The operation optimization model of the system is obtained. By comparing the debugging data with the model operation data in early 2014, the error is in the range of 鹵15%, which verifies the accuracy of the equipment performance parameters. According to the performance of internal combustion engine, the differences of operation strategies under different load conditions are illustrated with examples, and analyzed from two aspects: relatively large electric load and relatively large cold and hot load. The energy consumption and the objective function value of each operation strategy in winter and summer are solved by using the operation optimization model, and the results are compared with the distribution system, and the system operation effect in summer is better than that in winter. According to the typical daily load, the hourly energy consumption is analyzed. On this basis, the energy consumption of the economic operation strategy under different gas-electricity price ratio is obtained by analyzing the gas and electricity price which has a prominent impact on the operation economy of the system. Under the current energy price, this paper discusses the influence of the electricity price on the operation economy of the system under the operation mode of power generation. Through the practical application of the model in specific projects, it highlights the universal significance of the operation optimization of gas-driven CCHP system, and lays a foundation for the optimal operation of the system under the form of multi-station configuration in the future.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM61;TU83
本文編號：2298006
[Abstract]:The CCHP,Combined Cooling,Heating and Power) system is a distributed energy system based on the concept of cascade utilization of energy, which integrates refrigeration, heating and power generation process, which can not only improve the efficiency of energy utilization. It also helps to protect the environment and reduce investment costs. The research and application of CCHP system in our country started late, and the operation effect is not satisfactory. Therefore, it is of great significance to study the operation optimization of CCHP system carefully and deeply for its popularization and application in our country. Firstly, the basic configuration of gas-driven CCHP system is as follows: M power unit equipment, n transfer unit equipment, waste heat recovery unit supplementary combustion unit, under the premise of meeting the demand of building cooling, heat and electricity. Taking the performance parameters of each equipment as the constraint condition, the operation optimization model under the configuration of multiple sets is established. Select the running cost,? Efficiency and carbon dioxide emissions are single-objective functions. According to the efficiency coefficient method, the objective function of multi-objective optimization is determined, and different operation strategies are formed according to the intention of the decision makers. The model solution flow is as follows: according to the hourly load of the building, firstly, all the combined forms of power generation of each equipment of the power unit are given by enumeration method, and then the minimum gas consumption of the supplementary combustion unit under any combination form is calculated by the internal point method. The energy consumption is calculated and optimized according to the corresponding objective function. A visual program is compiled in the GUI toolbox of MATLAB. By input of energy price, conversion factor and hourly load, the optimal energy consumption and objective function of the system under various operation strategies are optimized. Taking the CCHP system of an internal combustion engine direct-gas engine in Tianjin as the research object, the hourly cooling, heat and electric load of the building carried by the engine was simulated in eQUEST software, and according to its configuration form and the equipment performance parameters provided by the manufacturer, The operation optimization model of the system is obtained. By comparing the debugging data with the model operation data in early 2014, the error is in the range of 鹵15%, which verifies the accuracy of the equipment performance parameters. According to the performance of internal combustion engine, the differences of operation strategies under different load conditions are illustrated with examples, and analyzed from two aspects: relatively large electric load and relatively large cold and hot load. The energy consumption and the objective function value of each operation strategy in winter and summer are solved by using the operation optimization model, and the results are compared with the distribution system, and the system operation effect in summer is better than that in winter. According to the typical daily load, the hourly energy consumption is analyzed. On this basis, the energy consumption of the economic operation strategy under different gas-electricity price ratio is obtained by analyzing the gas and electricity price which has a prominent impact on the operation economy of the system. Under the current energy price, this paper discusses the influence of the electricity price on the operation economy of the system under the operation mode of power generation. Through the practical application of the model in specific projects, it highlights the universal significance of the operation optimization of gas-driven CCHP system, and lays a foundation for the optimal operation of the system under the form of multi-station configuration in the future.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM61;TU83
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 李金霞;鄭競宏;朱守真;沈欣煒;李慶生;農(nóng)靜;張裕;;基于內(nèi)點法的CCHP系統(tǒng)經(jīng)濟(jì)運行研究[J];華東電力;2014年02期
2 周萍;劉蕾;李鑫;高振武;;醫(yī)院燃?xì)饫錈犭娙?lián)供系統(tǒng)運行模式研究[J];能源與節(jié)能;2012年12期
3 周曉峰;;M701F型燃?xì)庹羝?lián)合循環(huán)機(jī)組啟停過程經(jīng)濟(jì)性分析[J];發(fā)電設(shè)備;2011年05期
4 胡小堅;張雪梅;蔡路茵;;冷熱電三聯(lián)供系統(tǒng)(CCHP)的優(yōu)化研究進(jìn)展[J];能源研究與管理;2010年02期
5 龍惟定;白瑋;梁浩;范蕊;;建筑節(jié)能與低碳建筑[J];建筑經(jīng)濟(jì);2010年02期
6 程進(jìn);;基于枚舉法的錐齒輪傳動優(yōu)化設(shè)計[J];西昌學(xué)院學(xué)報(自然科學(xué)版);2009年01期
7 李勝;吳靜怡;王如竹;;冷熱電聯(lián)供系統(tǒng)的研究熱點概述[J];制冷與空調(diào);2008年06期
8 李永兵;岳建華;沈炳耘;;冷熱電分布式供能系統(tǒng)的應(yīng)用和發(fā)展[J];燃?xì)廨啓C(jī)技術(shù);2008年03期
9 劉恒;巢健茜;;基于功效系數(shù)法的醫(yī)療質(zhì)量綜合評價[J];中國醫(yī)院管理;2008年02期
10 丁水汀;段倫;韓樹軍;聞潔;郭雋;;冷熱電聯(lián)供系統(tǒng)運行模式優(yōu)化[J];熱科學(xué)與技術(shù);2007年02期
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