| 题名 |
中央空調水側次系統整合控制技術與效益驗證 |
| 并列篇名 |
An Integrated Control Technology for Water-side Subsystems of Central Air Conditioning Systems and the Verification of Its Effectiveness |
| 作者 |
吳孝原；胡志堅；謝佳興；陳冠文；蔡明倫；劉芳聿 |
| 关键词 |
中央空調 ； 水側系統 ； 控制 ； 整合 ； 節能 ； Central Air Conditioning ； Water-side system ； Control ； Integration ； Energy saving |
| 期刊名称 |
冷凍空調&能源科技 |
| 卷期/出版年月 |
115期（2019 / 05 / 10） |
| 页次 |
59 - 64 |
| 内容语文 |
繁體中文;英文 |
| 中文摘要 |
本研究的目標是建立多主機空調水側系統的整合控制技術，使水側系統平均能耗達到0.75 kW/RT以下，符合新加坡Green Mark金級標準。主要的概念是把所有水側設備視為一個單ㄧ系統，以全系統的最佳性能表現為目標來控制每個設備。首先以水側全系統的觀點來定義各變數，並將變數分為可控自變數、不可控自變數、應變數等三類。其次建立了水側系統的數值模型，運用系統歷史運轉數據以及迴歸分析來建立應變數與自變數之間的函數關係。然後建立整合控制演算法，運用上述數值模型逐一評估可控自變數的所有可能組合，並找出其中一個組合，使得製冷量符合空調需求且水側系統耗電量最小，根據此組合來驅動各個設備。然後建立了一組場域實證系統來驗證本技術的效益。運用該實證系統完成了80小時的整合控制實驗，實驗期間水側系統平均能耗值為0.65 kW/RT，優於目標值0.75 kW/RT。此外並對於本技術（實驗組）與傳統回饋控制方法（對照組）進行了6小時運轉數據的比較，結果顯示實驗組平均能耗為0.60 kW/RT，對照組則為0.70 kW/RT，本技術確實能夠達到較佳的效率。 |
| 英文摘要 |
The objective of this study is to develop an integrated control technology for multi-chiller water-side systems of central air conditioning systems, so that the average power consumptions of the water-side systems can be lower than 0.75 kW/RT, which is the Gold rating threshold of the Singapore Green Mark Scheme. The idea is to treat all water-side devices as one single system, and integrally control all devices in order to obtain the best performance of the system. Firstly, variables were defined and categorized based on a whole-system perspective. The variables were divided into three categories: controllable independent variables, uncontrollable independent variables, and dependent variables. Secondly, a numerical model of water-side systems was established. The functional relationships between dependent variables and independent variables were obtained using AC system log data and regression analysis. Then an integrated control algorithm was designed. The algorithm evaluates all possible value combinations of the controllable independent variables using the numerical model, finds a combination that satisfies the cooling loads and minimizes the water-side system power consumption, and then actuates the devices based on the combination. A verification control system was implemented to verify the effectiveness of this control technology. An experiment was conducted using the verification control system, and 80-hour operation data were collected. The average water-side power consumption is 0.65 kW/RT during the experiment, which is better than the preset goal 0.75 kW/RT. Moreover, the above control technology was compared with a conventional feedback control method for a 6-hour period. The results show that the average power consumption of the above technology is 0.60 kW/RT, and that of the conventional technology is 0.70 kW/RT. The technology of this study does result in a higher efficiency. |
| 主题分类 |
工程學 >
電機工程 |
| 参考文献 |
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