Combined heat and power scheduling: Utilizing building‐level thermal inertia for short‐term thermal energy storage in district heat system
Combined heat and power scheduling: Utilizing building‐level thermal inertia for short‐term thermal energy storage in district heat system
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DOI：
10.1002/tee.22633
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发表时间：
2018-06
影响因子：
1
通讯作者：
Lei Zhang;Yi Luo
中科院分区：
文献类型：
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作者：
Lei Zhang;Yi Luo
在电力系统（EPS）中集成风力发电的主要限制是区域供热系统（DHS）中高穿透率的非灵活热电联产（CHP）机组的巨大发电容量。在这项研究中，建立了一个热电优化调度，以利用建筑水平的热惯性作为短期热能储存（TES）的形式，以释放热电联产机组的灵活性。这种拟议的短期建筑TES可以通过在拟议的调度控制模型下利用室内温度的微小变化来提供存储潜力，以控制调度过程中的存储容量。运行线性优化运行模型，通过平衡多个时间段内的热量和电力需求与热电联供机组、风电、短期建筑TES和区级供热网络（DHN）存储容量来集成能源系统。提出了一种两阶段分解协调迭代算法来求解该优化程序。对模拟结果进行了分析，以确定这种短期TES在经济性、风电集成和热电联产机组灵活性方面的潜在效益。© 2018日本电气工程师协会。出版社：John Wiley & Sons，Inc.
A major limitation to integrating wind power in electric power system (EPS) is the massive generation capacity of the high‐penetration inflexible combined heat and power (CHP) units in district heating system (DHS). A heat and power optimal dispatch is established in this study to exploit building‐level thermal inertia as a form of short‐term thermal energy storage (TES) to unlock the flexibility of CHP units. This proposed short‐term building TES can provide storage potential by utilizing small variations in indoor temperature under the proposed dispatch control model to control the storage capacity in the dispatch process. A linear optimization operational model is run to integrate energy systems by balancing heat and power demands over multiple time periods with CHP units, wind power, short‐term building TES, and district‐level heating network (DHN) storage capacity. A two‐stage decomposition–coordination iteration algorithm is proposed to solve this optimization program. The simulation results are analyzed to determine the potential benefits of this short‐term TES in terms of economics, wind power integration, and the flexibility of CHP units. © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.