摘要
【目的】传统电储能在规模、持续时间和环境影响等方面存在局限性,而且微电网中新能源消纳能力低,规划时无法兼顾低碳性和经济性。为解决以上问题,基于氢储能基本工作原理,将氢储能代替传统电储能纳入到微电网中,建立了含氢储能的微电网低碳-经济协同双层优化配置模型。【方法】上层规划模型以微电网综合等年值最小为目标,在电-氢联合运行的基础上,引入碳交易机制对微电网中各发电设备进行容量规划,提高了系统的低碳性;下层运行模型以最小化新能源出力与负荷需求之差的绝对值之和为目标,鼓励用户采取以精确追踪新能源出力曲线为目标的多样化需求侧响应行为,并将用户的用能行为调整反馈至上层模型,实现了对负荷曲线的优化。【结果】某工业园区微电网仿真验证表明,所提方法得到的规划方案具有良好的低碳性和经济性,与传统规划方法相比,低碳性和经济性分别提高了53.6%和37.1%。【结论】所建模型在提高新能源消纳能力的基础上进一步提高了系统的经济性,实现了微电网低碳性和经济性的协同优化。
[Objectives]Traditional electric energy storage has limitations in scale,duration,and environmental impact.Moreover,the renewable energy absorption capacity in the microgrid is low,and low-carbon and economy cannot be taken into account in planning.In order to solve the above problems,based on the basic working principle of hydrogen energy storage,hydrogen energy storage was incorporated into the microgrid instead of traditional electric energy storage,and a low-carbon and economic synergy bi-level optimization configuration model of microgrid with hydrogen energy storage was established.[Methods]The upper-level planning model aimed at minimizing the comprehensive equivalent annual value of the microgrid,based on the joint operation of electricity and hydrogen.The carbon trading mechanism was introduced to plan the capacity of various power generation equipments in the microgrid,which can enhance the low-carbon of the system.The lower-level operation model aimed to minimize the sum of the absolute values of the difference between the new energy output and the load demand.The model also encouraged users to adopt diversified demand-side response behaviors with the goal of accurately tracking the new energy output curve,and feeded back the user’s energy consumption behavior to the upper-level model to optimize the load curve.On the basis of improving the absorption capacity of new energy,the system economy is further improved,deeply exploring the synergy between the low-carbon and economic characteristics of microgrids.[Results]The simulation results of microgrid in a certain industrial park show that the proposed method yields a planning scheme with excellent low-carbon and economy.Compared with the traditional planning method,the low-carbon and economy are improved by 53.6%and 37.1%,respectively.[Conclusions]The model presented in this paper not only enhances the capacity for new energy absorption but also further improves the system economic performance.It achieves a synergistic enhancement of the microgrid low-carbon and economy.
作者
谭玲玲
孙鹏
郭沛璇
李元芳
吉兴全
张玉敏
TAN Lingling;SUN Peng;GUO Peixuan;LI Yuanfang;JI Xingquan;ZHANG Yumin(Shandong Electric Power Engineering Consulting Institute Co.,Ltd.,Jinan 250013,Shandong Province,China;College of Electrical Engineering and Automation,Shandong University of Science and Technology,Qingdao 266590,Shandong Province,China)
出处
《发电技术》
CSCD
2024年第5期983-994,共12页
Power Generation Technology
基金
山东省自然科学基金项目(ZR2022ME219,ZR2021QE117)。
关键词
微电网
氢储能
新能源
低碳
碳交易
容量规划
需求响应
优化配置
microgrid
hydrogen energy storage
new energy
low-carbon
carbon trading
capacity planning
demand response
optimization configuration
