煤层气和压缩空气储能复合的矿区综合能源系统优化运行模型
Optimal Operation Model of Complex Integrated Energy System for Mining Areas With Coalbed Methane and Compressed Air Energy Storage
杨莹 1曹美萱 1赵为光 1孙建宇 1刘振羽 1耿光辉 1钟懿文 1吕品1
作者信息
- 1. 黑龙江科技大学电气与控制工程学院,黑龙江省 哈尔滨市 150022
- 折叠
摘要
由于缺乏有效的回收工序和利用手段,矿区大部分低浓度煤层气被直接排空,造成严重资源浪费和温室效应.同时,间歇随机波动的可再生能源渗透率增加导致电力系统安全经济运行面临严峻挑战.该文集矿区低浓度煤层气资源和压缩空气储能优势于一体,提出煤层气和压缩空气储能复合的矿区型综合能源系统结构.采用变压吸附工艺提纯低浓度煤层气资源,回收提纯过程具有余压的废气资源作为压缩空气储能进气源.利用地下废弃矿道分别作为压缩空气储气库和煤层气储气库,形成余压利用型压缩空气储能系统.利用储能压缩热和煤层气发电余热资源,通过矿区热、电、储联合运行方式与可再生能源互补调节.基于该结构建立系统模型,以系统运行成本、风电消纳和碳排放为目标建立多目标优化模型.通过算例将是否考虑变压吸附的矿区综合能源系统进行对比,结果表明,所提出的系统具有良好的经济性、风电消纳能力和减碳能力.
Abstract
Due to the lack of effective utilization and recovery processes,most of the low concentration coalbed methane in the mining area is directly drained,resulting in serious resource waste and greenhouse effect.At the same time,with the increase of the penetration rate of renewable energy which is intermittent,random and fluctuant,the safe and economic operation of the power system is facing severe challenges.The advantages of low concentration coalbed methane resources in the mining area and compressed air energy storage are combined in this paper,and a structure of complex integrated energy system for mining with coalbed methane and compressed air energy storage is proposed.The waste gas resources with residual pressure in the purification process are recovered and used as intake source for compressed air energy storage.The underground abandoned mine tunnels are used as compressed air storage and coalbed methane storage respectively,forming a residual pressure utilization compressed air energy storage.In this paper,the compressed heat in the energy storage and the residual heat generated by power generation are fully utilized,so that the renewables are complemented and adjusted through the combination of heat,electricity and storage in the mining area.Based on the proposed structure of the mining area,the system model is established,and then a multi-objective operation model is established with the system operation cost,wind power consumption and carbon emissions as the objectives.The integrated energy systems of the mining area with or without pressure swing adsorption are compared by example analysis,and the results show that the complex integrated energy systems for mining exhibit good economy,wind power consumption and carbon reduction ability.
关键词
煤层气/变压吸附/压缩空气储能/风电消纳/碳排放Key words
coalbed methane/pressure swing adsorption/compressed air energy storage/wind power consumption/carbon emissions引用本文复制引用
基金项目
黑龙江省省属高校基本科研业务费项目(2019-KYYWF-0731)
出版年
2024
国家科技期刊平台
NSTL
万方数据