摘要
分布式冷热电多联供系统中冷、热、电负荷的变化和平衡具有不同的特性和规律.基于冷、热、电负荷不同平衡要求,在总供能周期内,满足机组运行约束下,以系统各供能单元的联合供能成本最小为目标函数,求解最优供能方案;将分布式供能系统分为联合供能系统、区域供能系统和"配网供电,空调供热"的传统分供系统三类,以南方某大型居民区为应用实例,对比标准煤耗量和供能企业经济性2个指标,比较分析3种供能系统的调度结果;表明:该文提出的联合供能方式能显著提高一次能源利用率,具有良好的社会综合效益.
The variation and equilibrium characteristics of cooling, thermal and electrical load in distributed combined cooling heating and power system are different. For the different balancing requirement of loads, an optimal model satisfying operation constraints in each energy-supply pe- riod was built in this paper. The distributed energy-supply system was divided into three types, including combined cooling heating and power （CCHP） system, district energy system and sepa- ration system. Standard coal consumption indexes and economy indexes of energy-supply enter- prises were adopted to evaluate the dispatching results of three types of energy supply. Testing results of a southern large residential area illustrated that the proposed CCHP system can signifi- cantly improve primary energy ratio and social benefit in energy supply.
出处
《电力科学与技术学报》
CAS
2013年第1期56-62,共7页
Journal of Electric Power Science And Technology
基金
国家自然科学基金(51277016)
湖南省高校创新平台开放基金项目(12K074)
湖南省研究生科研创新项目立项(CX2011B359)
关键词
分布式供能系统
冷热电多联供系统
经济运行
冷热能分阶段平衡
distributed energy-supply system combined cooling heating and power （CCHP）
eco-nomic operation
multi-stage balancing of cold N. thermal energy
