区域综合能源系统规划关键问题研究综述

doi:10.3969/j.issn.2097-0706.2022.06.002

摘要/Abstract

摘要：

能源转型战略目标的提出促进了社会供能系统向清洁化、高效化、经济化发展,因此需要通过研究区域综合能源系统（DIES）实现系统优化调度的整体突破与提升。首先分析以打破地域约束、能源与行业壁垒为规划目标,具有多能流耦合、多区域互联与多系统融合特征的DIES典型规划方案;接着分源、网、储3类概括DIES包含的设备及管道的数学模型。结合以上分析,考虑互联互动机制下的DIES多目标、多随机因素的特征,围绕能源站,能源网络及站网协调,对基本规划模型在优化建模与求解方法上的关键问题进行分析与总结,并根据不同的评价指标分别论述DIES优化效益,最后基于目前研究存在的不足对未来的研究方向进行展望。

关键词: 区域综合能源系统, 互联互动机制, 能源转型, 能源互联网, 站网协调, 能源网络建模

Abstract:

The proposed energy transition strategy has promoted the clean,efficient and economic development of public energy supply systems.District-level integrated energy system（DIES）is an important measure to achieve overall breakthroughs in system dispatch optimization.A typical planning scheme for a DIES with the characteristics of multi-energy flow coupling,multi-regional interconnection and multi-system integration is carried out and analyzed with the goal of breaking regional constraints,energy barriers and industry borders.Then,the mathematical models for the equipment and lines in DIES are divided into three categories,source,network and storage.Since DIES planning scheme under the interconnection and interaction mechanism is a multi-objective multi-factor optimization problem,the key problems in the optimization modeling and model solving of the basic planning model are analyzed and summarized,especially the ones focusing on power dispatch between energy stations and networks.The economic benefits of DIES optimization are assessed according to different evaluation indexes.Finally,based on the deficiency of the current research,the future research direction is prospected.

Key words: district-level integrated energy system, interconnection and interaction mechanism, energy transition, energy internet, cooperation of station and network, modelling of Energy Internet

中图分类号:

TK01

刘自发, 谭雅之, 李炯, 樊静宜, 周翰泽. 区域综合能源系统规划关键问题研究综述[J]. 综合智慧能源, 2022, 44(6): 12-24.

LIU Zifa, TAN Yazhi, LI Jiong, FAN Jingyi, ZHOU Hanze. Review on key points in the planning for a district-level integrated energy system[J]. Integrated Intelligent Energy, 2022, 44(6): 12-24.

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设备功能	类型	作用
耦合元件	CCHP	实现电-气-热能源的转换,提高对可再生能源的消纳能力,扩大系统的运行区间以及灵活性
	P2G
	燃气轮机
	CHP
	电锅炉
	热泵
储能装置	蓄热罐	能源储存、中转、备用装置,改变负荷的时空分布,实现削峰填谷,提高能源的利用率与系统的调度能力
	储气罐
	热网
	电网
	楼宇
	电池

类型	作用	设备
分布式能源设备	供电	光伏发电
能源转换设备	气-电-热	热电联产机组
	电-热	电锅炉
	电-冷	工业螺杆式制冷机
	热-冷	溴化锂制冷机
能源存储设备	储电	蓄电池
	储热	蓄热槽
	储冷	冰蓄冷

建模方式	优点	缺点
概率	准确描述不确定性	难以获得准确分布
模糊	方法简单,计算量小	结果精度较差
区间	方法简单,计算量小	结果精度较差
机会约束	分析结果更接近实际	置信度设置主观性高
条件风险价值	可衡量尾部风险, 完成保守计算	置信度设置主观性高
多场景	方法简单,将不确定性问题转化为典型场景确定性问题	需要进行场景缩减和最终场景需要高典型性
鲁棒	考虑到最恶劣场景	结果相对保守

一级指标	二级指标	指标单位
经济效益	净现值	万元
	内部收益率	%
	设备运行节约费用	万元
环境效益	CO₂年排放量	t
	NO_x年排放量	t
	清洁能源比例	%
能耗效益	能量梯级利用率	%
	节能率	%
	系统效率	%
	配电网线损率	%
	配电网负载率	%
	系统热损失率	%
	天然气管道容载率	%
	削峰填谷率	%
社会效益	能源质量
	主动削峰负荷用户比例	%
	用户满意度
	区域经济发展贡献率	%
	提供就业岗位率	%