Research on economic dispatch of multi-energy complementary system based on Particle Swarm Optimization

doi:10.3969/j.issn.1674-1951.2021.04.003

Abstract

Abstract:

Giving full play to the advantage of synergetic utilization on energy, multi-energy complementary systems can realize the cascade utilization of energy, and ensure the safe, low-carbon, stable, efficient and economic operation of power system. According to the characteristics of energy flow in the system, electric bus, hot water bus, cold water bus, flue gas bus and steam bus are selected as the basic framework of the system. The models of each device in the system is set up independently. Based on this structure, a mixed-integer linear programming model for the system's daily dynamic economic dispatch is established. The operation cost of this model can be adjusted by an intelligent algorithm, Particle Swarm Optimization （PSO）, and the operating mode of equipment with the lowest operating cost can be obtained. Taking a hospital as a testing example, the test results confirm the effectiveness of the model and the advantages of the multi-energy complementary system in making full use of renewable energy and economy.

Key words: multi-energy complementation, renewable energy, CCHP, low carbon, economic dispatch, mixed-integer linear programming model, Particle Swarm Optimization

CLC Number:

TK01⁺8：TM734

ZHAO Xin, ZHENG Wenyu, HOU Zhihua, CHEN Heng, XU Gang. Research on economic dispatch of multi-energy complementary system based on Particle Swarm Optimization[J]. Huadian Technology, 2021, 43(4): 14-20.

Figures/Tables 11

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设备	功率上限
燃气轮机	1 500
换热装置	3 300
余热锅炉	3 000
电制冷机	1 200
燃气锅炉	1 200
地源热泵	750

项目	参数
燃气轮机热电比	1.90
燃气轮机效率	0.30
换热装置效率	0.90
余热锅炉效率	0.73
电制冷机性能系数	4.00
燃气锅炉效率	0.90
地源热泵性能系数（制冷）	4.50
地源热泵性能系数（制热）	3.50

项目		价格
电	尖峰	1.439 7
	高峰	1.310 4
	平段	0.784 7
	低谷	0.311 3
天然气		0.254 0