计及碳交易机制的含光热电站海岛微网能量管理策略

doi:10.16180/j.cnki.issn1007-7820.2024.08.006

摘要/Abstract

摘要：

针对海岛能源供给低碳经济性和热电联产机组“以热定电”稳定运行问题,文中提出计及碳交易机制的含光热电站海岛微网能量管理策略。基于光热电站、热泵、风电、微型燃气轮机组、海水淡化设备等集电、热、水一体化的多能源海岛微网系统,通过热泵配合光热电站实现电-热能量双向转化,提高光热电站的发电能力并满足部分热负荷需求。引入碳交易机制来限制碳排放,建立海岛微网低碳经济性模型,研究在光热电站参与下海岛微网不同运行方式的经济性。多场景对比实验证明了海岛微网低碳经济调度可以较好地兼顾经济性与环保性,在以较低经济成本运行的同时碳排放较少。

关键词: 海岛微网, 能量管理, 海水淡化, 碳交易机制, 低碳经济性, 光热电站, 电-热转化, 多场景对比

Abstract:

In view of the low carbon economy of energy supply and the stable operation of "heat to power" of cogeneration units in offshore islands, an energy management strategy of island micro-grid of photothermal power stations with carbon trading mechanism is proposed. Based on the multi-energy island micro-grid system integrating power collection, heat and water, such as solar thermal power station, heat pump, wind power, micro gas turbine unit and seawater desalination equipment, the heat pump achieves the bi-directional conversion of electric-thermal energy with solar thermal power station to improve the power generation capacity of solar thermal power station and meet part of the heat load demand. Carbon trading mechanism is introduced to limit carbon emissions, and low-carbon economic model of island micro-grid is established to study the economy of different operation modes of island micro-grid with the participation of photothermal power stations. The multi-scenario comparison experiment verifies that the island micro-grid low-carbon economic dispatching can better balance economy and environmental protection, and generate less carbon emissions while operating at a lower economic cost.

Key words: island microgrid, energy management, seawater desalination, carbon trading scheme, low carbon economy, photothermal power station, electric heating conversion, multi-scene comparison

中图分类号:

TP319

高降宇, 陈蓓, 黄帅博. 计及碳交易机制的含光热电站海岛微网能量管理策略[J]. 电子科技, 2024, 37(8): 40-46.

GAO Xiangyu, CHEN Bei, HUANG Shuaibo. Energy Management Strategy of Island Microgrid with Photothermal Power Station Including Carbon Trading Mechanism[J]. Electronic Science and Technology, 2024, 37(8): 40-46.

图/表 10

图1

图2

表1

表2

微网运行参数"

参数	物理含义	数值
η_e	热电转换效率	0.45
μ_s	热损耗	0.10
χ_TES	TES单位储放热的成本系数	0.05
χ_CSP	CSP电站单位出力的成本系数	0.15
φ	储热能量损耗率	0.03
η_c、η_f	TES的储热、放热功率	0.98、0.98
$s H 2 O$	制淡设备单位功率维护成本	0.03

表2

图3

图4

图5

图6

图7

表3

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交易形式	阶段	价格/元·kWh^-1	时段
	峰时段	1.09	10∶00~12∶00,18∶00,22∶00
售电	平时段	0.68	8∶00~10∶00,12∶00~18∶00
	谷时段	0.35	22∶00~7∶00
	峰时段	0.58	10∶00~15∶00,20∶00~22∶00
热价	平时段	0.36	8∶00~10∶00,15∶00~17∶00
	谷时段	0.25	22∶00~8∶00

场景	运行成本/元	碳排放/kg
1	3 871	3 091
2	4 095	2 414
3	3 884	2 856