A Fluctuation Suppression Strategy of Tie-line Power Based on Flexible Control of Heat Pumps With Water Tanks in Combined Heat and Power Microgrid

被引：0
|
作者：
Dai S. [1 ]
Huang W. [1 ]
Tai N. [1 ]
Ma Z. [2 ]
Li S. [3 ]
机构：
[1] School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Minhang District, Shanghai
[2] State Grid Nanjing Power Supply Company, Nanjing, 210019, Jiangsu Province
[3] Electric Power Research Institute of Guangxi Power Grid Limited Liability Company, Nanning, 530000, Guangxi Zhuang Autonomous Region
来源：
Dianwang Jishu/Power System Technology | 2019年 / 43卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Combined heat and power microgrid; Heat pumps with water tanks; Power smooth strategy; Simulated annealing optimization; Tie-line power fluctuation;
D O I：
10.13335/j.1000-3673.pst.2018.1840
中图分类号：
学科分类号：
摘要：
In order to suppress fluctuation of tie-line power in microgrid with heat and power system, this paper proposes a fluctuation suppression strategy of tie-line power based on flexible control of heat pumps with water tanks. The strategy derives tie-line power control target and analyzes influence of smooth parameter on fluctuation. Then a control method is proposed to distribute fluctuation suppression assignment between the battery and heat pump group with consideration of water tank storage. Moreover, the power of heat pump group is changed to absorb the fluctuation by switching. On the premise of meeting all different heat demands, the strategy achieves a convergence of heat pumps' switching times without increase of average switching times, and makes heat pumps' deterioration in accordance. Then the output of battery is optimized to reduce cost by means of adjusting heat pump group power and lowering the switching times of battery charge-discharge. Simulation result shows that the strategy can smooth the tie-line power effectively, verifying effectiveness of the optimization method and reliability for different renewable energy source fluctuations. © 2019, Power System Technology Press. All right reserved.
引用
收藏
页码：1726 / 1734
页数：8
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