考虑高渗透率和碳排放约束的园区综合能源系统优化运行研究

doi:10.3969/j.issn.1674-1951.2021.04.001

摘要/Abstract

摘要：

中国在2030年前实现碳达峰是迫切的现实问题,园区综合能源系统可通过能源转换和分配,使能源间协调运行,充分发挥不同能源的优势,建立高效的综合能源体系并促进清洁能源的配置与消纳。基于园区的优化控制策略逻辑框架,充分考虑储能系统的作用,通过碳源分析和碳排放量核算方法,建立了以经济性和碳排放约束为目标函数、以各种负荷供需平衡和耦合设备运行限制为约束的多时间尺度优化模型,最后依据搭建的系统模型进行计算分析。分析结果表明,引入储能设备可以降低综合能源系统的运行成本,提高能源的利用率,消除可再生能源和负荷的随机性和波动性,为面向高渗透率和碳排放约束的园区综合能源系统优化运行提供支撑。

关键词: 碳排放, 碳达峰, 碳中和, 综合能源, 高渗透率, 碳源分析, 排放量核算, 储能系统, 多时间尺度, 优化模型

Abstract:

Realization carbon peak by 2030 is an urgent and tangible issue for China. Integrated energy systems for parks can coordinate different energy resources and give full play to the advantages of these resources through energy conversion and distribution. Establishing an efficient integrated energy system can promote the allocation and consumption of clean energy. Fully considering the park-oriented optimized control logical framework and functions of power storage systems, through carbon source analysis and the emission accounting,economy and carbon emission constraints were taken as the objective functions,and a multi-time-scale optimization model taking various loads' supply-demand balance and limiting conditions of coupled equipment as constraints was built. Calculation and analysis were made based on the model. The results show that the integrated power storage system can lower the operation costs of the whole energy system, increase the energy utilization, alleviate the randomness and volatility of renewable energy and load, and provide support for the optimized operation of park-oriented integrated energy systems with high permeability and carbon emission constraints.

Key words: carbon emission, carbon peak, carbon neutrality, integrated energy system, high permeability, carbon source analysis, emission accounting, power storage system, multi-time scale, optimization model

中图分类号:

TK01⁺9

尹硕, 郭兴五, 燕景, 杨钦臣, 张鹏. 考虑高渗透率和碳排放约束的园区综合能源系统优化运行研究[J]. 华电技术, 2021, 43(4): 1-7.

YIN Shuo, GUO Xingwu, YAN Jing, YANG Qinchen, ZHANG Peng. Study on optimized operation on integrated energy system in parks with high permeability and carbon emission constraints[J]. Huadian Technology, 2021, 43(4): 1-7.

图/表 7

图1

图2

表1

综合能源系统运行参数

类型	$P min$	$P max$
燃气轮机	15	60
燃气锅炉	0	50
电制冷机	0	45
电锅炉	0	50
风电	0	40
吸收式制冷机	10	30
余热锅炉	10	35
电转气系统	0	20
燃料电池	5	40
光伏	0	30

表1

表2

图3

表3

表4

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时段		购电价	售电价
高峰段	10:00 — 15:00 18:00 — 21:00	0.86	0.68
平时段	07:00 — 10:00 15:00 — 18:00 21:00 — 23:00	0.61	0.50
低谷段	00:00 — 07:00 23:00 — 24:00	0.30	0.26

调度模型	总运行成本/元	购电成本/元	购天然气成本/元	弃风率/%	弃光率/%
1	58 625	32 796	15 829	12.0	8.0
2	57 429	31 923	15 506	9.2	6.6
3	56 225	31 044	15 181	7.4	5.4

项目	03:00		09:00		21:00
项目	日前调度	日内调度	日前调度	日内调度	日前调度	日内调度
购电	48.00	46.23	0	-0.56	15.00	14.10
购天然气	54.00	53.50	80.00	78.00	80.00	76.00
光伏出力	0	0	16	19	0	0
风电出力	42	44	48	51	10	11
电制冷出力	38	36	40	40	34	31
燃气轮机出力	40	40	58	56	45	41
蓄电池出力	-15.00	-18.00	0	1.50	0	2.00
电锅炉出力	52.00	52.50	16.00	17.00	20.00	22.00
储气罐出力	-10.00	-12.60	0	0.22	0	0.80
冰蓄冷出力	-12.00	-11.10	16.00	17.50	0	0.50