第48卷 第11期 电力系统保护与控制 Vol.48 No.11
2020 年6 月1 日 Power System Protection and Control Jun. 1, 2020
DOI: 10.19783/j.cnki.pspc.190932
基于多能互补的热电联供型微网优化运行
程 杉,魏昭彬,黄天力,何 畅,赵孟雨
(新能源微电网湖北省协同创新中心(三峡大学),湖北 宜昌 443002)
摘要:热电联供型微网(CHP-MG)对实现能源可持续发展和构建绿色低碳社会具有重要的应用价值,而内部复杂
的能源结构与设备耦合关系,也对其运行优化带来了挑战。利用供需双侧电、热能的互动互补关系,在供给侧采
用储能装置实现联供设备的热电解耦,通过各能源转换设备提升系统多能源的供应能力。在需求侧对负荷类型进
行分类,利用电负荷的弹性和系统供热方式的多样性,构建含电负荷时移、削减响应及热负荷供能方式响应的综
合能源需求响应模型,并提出响应补偿机制。在此基础上,以系统运行成本与响应补偿成本之和最小为目标,综
合考虑供需双侧设备运行和可调度负荷资源约束,建立基于多能互补的 CHP-MG 优化运行数学模型。基于算例的
仿真结果和对比分析表明:考虑多能互补的供需双侧协同优化能有效提高系统供能的灵活性以及运行经济性。
关键词:热电联供型微网;热电解耦;综合能源需求响应;多能互补
Multi-energy complementation based optimal operation of a microgrid with combined heat and power
CHENG Shan, WEI Zhaobin, HUANG Tianli, HE Chang,
ZHAO Mengyu
(Hubei Collaborative Innovation Centre for Microgrid of New Energy (CTGU), Yichang 443002, China)
Abstract: CHP-MG is important for sustainable energy development and building a green and low-carbon society. The
complex coupling relationship between internal energy structure and equipment also brings challenges to its operational
optimization. In this paper, the thermoelectric decoupling of cogeneration equipment is realized by using energy storage
devices on the supply side, utilizing the mutual complementary relationship of electricity and heat energy on both sides of
supply and demand, and the multi-energy supply capacity of the system is enhanced by various energy conversion devices.
The load types are classified on the demand side, and the elasticity of electric load and the diversity of heating modes of
the system are utilized. A comprehensive energy demand response model including time-shift of electric load, reduction
response and conversion response of heating mode is built, and a response compensation mechanism is proposed. On this
basis, taking the minimum sum of system operation cost and response compensation cost as the objective, and accounting
for the constraints of equipment operation and dispatchable load resources on both sides of supply and demand, a
mathematical model of optimal operation of CHP-MG based on multi-energy complementarity is established. Finally, the
results and comparisons of an example show that the bilateral collaborative optimization of supply and demand
considering multi-energy complementarity can effectively improve the flexibility of energy supply and operational
economy of the system.
This work is supported by National Natural Science Foundation of China (No. 51607105).
Key words: CHP-MG; thermoelectric decoupling; integrated demand-side management; multi-energy complementary
0 引言
热电联供型微网(Combined Heat and Power
Microgrid,CHP-MG)基于能源梯级利用的理念,打
基金项目:国家自然科学基金资助项目(51607105);三峡大
学硕士学位论文培优基金(2019SSPY055)
破能源系统之间相互分立的格局,有效提高了能源
利用率
[1]
。如何通过储能和分布式产能/能源转换设
备的协同优化来突破热电耦合约束,充分利用需求
侧多种负荷的互补关系,建立科学、合理的供需双
侧多能协调的经济调度模型是 CHP-MG 优化运行
的重要研究内容
[2-3]
。
近年来,国内外针对 CHP-MG 的单元建模、规