考虑负荷特性的区域冷热电联供系统站网协同优化设计方法

doi:10.19595/j.cnki.1000-6753.tces.201372

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Abstract Aiming at the lack of consideration of temporal and spatial characteristics of loads in the existing energy station planning research, and in the process of system economic analysis, the site and equipment selection, network layout and pipeline diameter selection were not considered uniformly. This paper proposes station and network coordinated design method of regional combined cooling heating and power systems considering load characteristic. Firstly, based on the load's spatial distribution characteristics, an improved p-median optimization model for the station site selection and supply range division is proposed. Secondly, based on the load's timing complementary characteristics and considered multi-energy flow coupling and network coordination, the Prim algorithm is proposed to optimize network layout and pipe diameter selection. Thirdly, based on the interaction effect of station and network planning, with the goal of the lowest annual total cost of the regional station network, equipment selection and network layout and diameter selection are alternately and collaboratively optimized. Finally, under the practical example of an area to be planned with Matlab, the simulation results show that the station and network coordinated design method of regional combined cooling heating and power system considering load characteristic can shift the peak load to the valley load on the time-space scale, optimize the regional overall economy, and improve uneven load distribution and the utilization level of equipment and pipe network, verifying the effectiveness and economy of the proposed method.

Key words： Combined cooling-heating-power system improved p-median model Prim algorithm network layout equipment selection

Received: 15 October 2020

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TM715

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	Yao Zhili
	Wang Zhixin

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Yao Zhili,Wang Zhixin. Station and Network Coordinated Design Method of Regional Combined Cooling Heating and Power System Considering Load Characteristic[J]. Transactions of China Electrotechnical Society, 2021, 36(22): 4760-4772.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.201372 OR https://dgjsxb.ces-transaction.com/EN/Y2021/V36/I22/4760

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