考虑风电消纳的热电厂蓄热罐效益成本分析

doi:10.12096/j.2096-4528.pgt.20109

摘要/Abstract

摘要：

在电-热联合系统中，应用大容量储热可提高电力系统运行控制的灵活性，从而提升系统消纳风电的能力。针对蓄热罐配置的效益成本问题，建立了热电厂配置蓄热罐方案的成本效益模型，将含储热的电力系统电热综合调度模型所得的参数代入，计算得到热电厂配置蓄热罐的总收益。仿真算例采用MATLAB中的数学规划求解器GUROBI进行求解。仿真结果表明：存在最优储热系统配置容量，使整体效益最佳；该模型能够有效分析热电厂配置蓄热罐的效益和成本。

关键词: 热电厂, 储热, 蓄热罐, 风电消纳, 总收益

Abstract:

In the projects of combined heat and power, the application of large capacity heat storage can improve the flexibility of power system operation control, so as to enhance the system ability to absorb wind power. To study the necessity of heat storage tank configuration, a cost-benefit model of heat storage tank configuration for thermal power plants was established, and the total revenue of heat storage tank configuration for thermal power plants was calculated by substituting the parameters obtained from the electrothermal comprehensive dispatching model of power systems with heat storage. The simulation example was solved by the mathematical programming solver GUROBI in MATLAB. The simulation results show that there is an optimal capacity of heat storage system to make the overall efficiency best and the model can effectively analyze the necessity of heat storage tank configuration in thermal power plants.

Key words: thermal power plant, thermal storage, heat storage tank, wind power ^consumption, total revenue

中图分类号:

TK 02

张辉, 顾秀芳, 陈艳宁, 罗振鹏, 王宸. 考虑风电消纳的热电厂蓄热罐效益成本分析[J]. 发电技术, 2022, 43(4): 664-672.

Hui ZHANG, Xiufang GU, Yanning CHEN, Zhenpeng LUO, Chen WANG. Benefit Cost Analysis of Thermal Storage Tank in Thermal Power Plant Considering Wind Power Consumption[J]. Power Generation Technology, 2022, 43(4): 664-672.

图/表 12

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参数	热电机组	常规机组	风电
装机容量/MW	1 900	900	900
所占比例/%	51.4	24.3	24.3

参数	热电机组	常规机组	风电
装机容量/MW	1 900	900	900
所占比例/%	51.4	24.3	24.3

热电厂参数	数值
单位煤价格/(万元/t)	0.06
排放率G_SO2/(kg/t)	2.7
排放率G_CO2/(kg/t)	1 878.9
排放率G_y/(kg/t)	1.2
SO₂当量δ_SO2/kg	0.95
CO₂当量δ_CO2/kg	20
烟尘当量δ_y/kg	2.18
排污征费指标/(万元/当量)	0.000 12
供暖期天数/天	180

热电厂参数	数值
单位煤价格/(万元/t)	0.06
排放率G_SO2/(kg/t)	2.7
排放率G_CO2/(kg/t)	1 878.9
排放率G_y/(kg/t)	1.2
SO₂当量δ_SO2/kg	0.95
CO₂当量δ_CO2/kg	20
烟尘当量δ_y/kg	2.18
排污征费指标/(万元/当量)	0.000 12
供暖期天数/天	180

蓄热罐参数	数值
单位造价/(万元/m³)	0.3
折现率	0.05
寿命/a	20
低温回水温度/℃	70
高温供水温度/℃	150
蓄热温差ΔT/℃	80
容积率ε	0.9
综合利用效率η	0.95
蓄热损失K(i)	0.005
年维护成本占其建设成本的百分比ξ	0.005