【摘要】：蓄冷空調(diào)將冷量產(chǎn)生的時間與使用的時間分離,在用電低谷時蓄冷,在用電高峰時段釋冷,對電網(wǎng)起到了削峰填谷的作用,對保障電網(wǎng)的安全運行起到重大作用,具有良好的經(jīng)濟效益和社會效益。不同控制策略對蓄冷空調(diào)系統(tǒng)運行的節(jié)能性、經(jīng)濟性及運行的安全穩(wěn)定性產(chǎn)生極大地影響,本文針對水蓄冷系統(tǒng)特性,建立水蓄冷空調(diào)系統(tǒng)模擬平臺,分析系統(tǒng)在不同控制策略下各設(shè)備的安全穩(wěn)定性及經(jīng)濟與節(jié)能性。水蓄冷空調(diào)系統(tǒng)設(shè)計以計算日逐時負荷為基礎(chǔ),本文利用建筑能耗模擬軟件DeST模擬確定建筑全年負荷,并以此為基礎(chǔ)對水蓄冷空調(diào)系統(tǒng)進行了設(shè)備選型及系統(tǒng)形式的確定�？偨Y(jié)和建立水蓄冷空調(diào)系統(tǒng)各設(shè)備數(shù)學(xué)模型,在TRNSYS平臺中建立水蓄冷空調(diào)模擬平臺,在平臺中調(diào)試實現(xiàn)對水蓄冷控制中的各運行模式及控制策略的實施。為實現(xiàn)水蓄冷的優(yōu)化控制,提出以全天運行費用最低為目標函數(shù)的優(yōu)化方程,建立冷機在優(yōu)化計算中耗功量計算數(shù)學(xué)模型,并利用線性規(guī)劃中單純形法求出最優(yōu)解。選取典型日,在模擬平臺中,運行冷機優(yōu)先與優(yōu)化控制兩種控制策略,對比冷機運行的安全穩(wěn)定性、節(jié)能性與經(jīng)濟性,發(fā)現(xiàn)若控制優(yōu)化策略制定不當會導(dǎo)致冷機運行不穩(wěn)定：優(yōu)化控制在經(jīng)濟性上優(yōu)勢明顯,但沒能有效降低系統(tǒng)能耗；同時建筑物日負荷偏離計算日越遠,優(yōu)化控制較冷機優(yōu)先節(jié)省運行費用越明顯。
[Abstract]:The cold storage air conditioning separates the time of producing the quantity of cold from the time of use, stores the cold at the low point of electricity consumption, and releases the cold during the peak period of electricity consumption, which plays an important role in cutting the peak and filling the valley of the power grid and ensuring the safe operation of the power network. It has good economic and social benefits. Different control strategies have a great influence on the energy saving, economy and safety and stability of the storage air conditioning system. In this paper, the simulation platform of the water storage air conditioning system is established according to the characteristics of the water storage air conditioning system. The safety, stability, economy and energy efficiency of the system under different control strategies are analyzed. The design of water storage air conditioning system is based on the calculation of hourly load per day. In this paper, building energy consumption simulation software DeST is used to determine the annual load of the building, and on this basis, the equipment selection and system form of the water storage air conditioning system are determined. The mathematical models of water storage air conditioning system are summarized and established. The simulation platform of water storage air conditioning system is established on the TRNSYS platform. The operation mode and control strategy of water storage control are implemented by debugging in the platform. In order to realize the optimal control of water storage, an optimization equation with the lowest operating cost per day as the objective function is proposed, and the mathematical model of power consumption calculation in the optimization calculation of the cooling machine is established, and the optimal solution is obtained by using the simplex method in linear programming. Selecting typical days, in the simulation platform, two control strategies, priority and optimization control, are used to compare the safety, stability, energy saving and economy of the operation of the cold machine. It is found that if the control optimization strategy is not made properly, the operation of the cooling machine will be unstable: the optimization control has obvious advantages in economy, but it can not effectively reduce the energy consumption of the system, and the daily load of the building deviates from the calculated day. The more obvious the operation cost is, the better the optimal control is compared with the cooling machine.
【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TU831

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