A Novel Optimal Operational Strategy for the CCHP System Based on Two Operating Modes
A Novel Optimal Operational Strategy for the CCHP System Based on Two Operating Modes
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DOI：
10.1109/tpwrs.2011.2175490
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发表时间：
2012-05
影响因子：
6.6
通讯作者：
F. Fang;Q. Wang;Yang Shi
中科院分区：
文献类型：
--
作者：
F. Fang;Q. Wang;Yang Shi
冷热电联供系统的运行模式直接影响系统的性能。为了提高机组的综合运行性能，本文基于两种典型的运行模式，提出了一种基于综合性能准则的最优运行策略。使用该策略，CCHP系统的整个操作空间可以被划分为几个区域由一个到三个边界表面确定的能量需求和IPC。然后将冷热电联产系统的运行点定位在相应的运行模式区域，以实现改进的IPC。IPC同时考虑了一次能源消耗、运营成本和二氧化碳排放。碳税也包含在运营成本中。一个假设的酒店建筑建模为参考系统，以评估所提出的战略。仿真结果表明，对于同一假设酒店的冷热电联供系统，采用该策略的IPC优于传统策略。该策略能够有效地反映和平衡能源需求、能源价格和排放的影响。
The operating modes directly influence the system performance of combined cooling, heating and power (CCHP) systems. To improve the comprehensive operational performance, in this paper, based on two typical operating modes, i.e., following the electric load (FEL) and following the thermal load (FTL), a novel optimal operational strategy depending on an integrated performance criterion (IPC) is proposed. Using this strategy, the whole operating space of the CCHP system can be divided into several regions by one to three border surfaces determined by energy requirements and the IPC. Then the operating point of the CCHP system is located in a corresponding operating mode region to achieve improved IPC. The IPC simultaneously considers the primary energy consumption, the operational cost and the carbon dioxide emissions. The carbon tax is also included in the operational cost. A hypothetical hotel building is modeled as the reference system to evaluate the proposed strategy. Simulation results show that, for the same CCHP system of the hypothetical hotel, the IPC with the proposed strategy is better than that with the traditional strategy. The proposed strategy can reflect and balance the influences of energy requirements, energy prices and emissions effectively.