考虑生物质供给价格弹性的工业园区综合能源系统规划

doi:10.12204/j.issn.1000-7229.2021.04.006

摘要/Abstract

摘要：

针对以生物质联供机组为核心的综合能源系统(integrated energy system,IES)在实际运行过程中存在的生物质燃料收集困难、供应不稳定等问题,文章提出了一种考虑生物质供给价格弹性的综合能源系统规划方法。首先,基于生物质收购价格弹性理论建立了秸秆收集成本模型,并将其引入工业园区综合能源系统双层规划中。其次,上层模型以设备规划容量及秸秆收购价格为优化变量,以年化综合费用最小为优化目标;下层模型以设备逐时出力及秸秆消耗量为优化变量,以考虑价格弹性的秸秆收集成本在内的年运行成本最小为优化目标,并采用粒子群算法和CPLEX工具箱进行联合求解。最后,以吉林省某典型工业园区为算例验证了所提规划方法更贴合工程实际情况,具有更加优越的经济性。

关键词: 综合能源系统(IES), 生物质能, 价格弹性, 双层规划

Abstract:

Because of the difficulties of biomass fuel collection and unstable supply in the actual operation of the integrated energy system (IES) centered on biomass cogeneration units, this paper proposes an IES planning method that considers the price elasticity of biomass supply. Firstly, according to the biomass purchase price elasticity theory, a straw collection cost model is established and introduced into the two-level planning of the industrial park IES. Secondly, the upper-level model uses equipment planning capacity and straw purchase price as optimization variables to pursue the minimum annualized comprehensive cost; the lower-level model uses equipment hourly output and straw consumption as optimization variables to pursue the minimum annual operating cost that takes into account the price flexibility of straw collection costs, and the particle swarm optimization and the CPLEX toolbox are used to solve the problem. Finally, a typical industrial park in Jilin Province is taken as an example to verify that the proposed planning method is more suitable for the actual situation of the project and has a more superior economic efficiency.

Key words: integrated energy system (IES), biomass energy, price elasticity, two-level planning

中图分类号:

TM73

高阳, 席皛, 刘小慧, 王小君. 考虑生物质供给价格弹性的工业园区综合能源系统规划[J]. 电力建设, 2021, 42(4): 49-58.

GAO Yang, XI Xiao, LIU Xiaohui, WANG Xiaojun. Integrated Energy System Planning Method for Industrial Parks Considering the Price Elasticity of Biomass Supply[J]. ELECTRIC POWER CONSTRUCTION, 2021, 42(4): 49-58.

图/表 15

图1 以生物质机组为核心的IES架构

Fig.1 IES framework with biomass unit as the core

图2 生物质供给模型曲线

Fig.2 Curve of biomass supply model

图3 秸秆收购价格与收集量、收集成本的关系

Fig.3 Relationship between the purchase price of straw and the amount and cost of collection

图4 双层优化模型求解流程

Fig.4 Solving process of two-level optimization model

图5 秸秆收购价格与生物质机组容量的迭代收敛情况

Fig.5 Iterative convergence of straw purchase price and biomass unit capacity

表1 设备容量、秸秆收集规划结果

Table 1 Planning results of equipment capacities

表2 成本对比情况

Table 2 Cost comparison

图6 冬季电负荷平衡状态与蓄电容量

Fig.6 Electric load balance and storage capacity in winter

图7 冬季热负荷平衡状态与蓄热容量

Fig.7 Heat load balance and heat storage capacity in winter

图A1 各个季节典型日负荷

Fig.A1 Typical daily load of each season

图A2 规划地区各个季节典型日光伏出力

Fig.A2 Typical daily photovoltaic output in each season in the planned area

图A3 规划地区风电场典型日出力情况

Fig.A3 Typical sunrise force map of wind farms in the planned area

表A1 园区分时电价和市政供热情况

Table A1 TOU electricity prices and municipal heating conditions in the park

表A2 设备成本

Table A2 Equipment cost

表A3 工业园区相关信息

Table A3 Information on the industrial park

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