摘要
分布式能源互联网理念的提出是为了破解常规分布式能源系统供需失衡的困境,由点及面深度挖掘节能减排潜力。日本的分布式能源应用正从传统单体模式走向互联网模式。通过案例分析可以看出,日本分布式能源互联网的推进大多以燃气公司为实施主体,以既有建筑为实施对象,以区域热融通为实施内容,侧重于互联网理念在能源物理层面的渗透。作为能源互联网理念在微观区域层面的具象化,分布式能源互联网在我国也引起了广泛关注,分布式能源的网络化应用已进入先导示范阶段,日本的实践经验值得借鉴。我国首批能源互联网示范项目大多是由电力公司牵头申请,而天然气是一次能源,以燃气公司为主体推进能源互联网建设,可以使互联网理念在能源领域的渗透更深入、更彻底;我国的多能互补和能源互联网示范项目更关注电融通,但热能的传输损失要远大于电,而且在终端能源需求中热能占比也高于电,因而构建热能局域网的迫切性要高于电能局域网;规划设计中应摆脱常规贪大求多的规模效应思维,立足于可确定负荷;要结合既有建筑节能改造,构建跨边界的一体化节能改造框架体系。
The concept of distributed energy Internet（DEI） was proposed to solve the problem of imbalance between the supply and demand of conventional distributed energy system and tap the potential of energy conservation and emission reduction.The application of distributed energy in Japan is shifting from traditional mono-mode to Internet mode.The case analysis shows that the promotion of DEI in Japan mostly takes gas companies as the implementation subject,existing buildings as the implementation object and regional heat interchanging as the implementation content,and focuses on the penetration of the Internet concept at the physical layer.As the concretization of energy Internet concept at the microcosmic layer,the DEI has also aroused extensive attention in China,the network application of distributed energy has entered demonstration stage,and the practical experience of Japan is worth learning.The applications for the first batch of energy Internet demonstration projects in China were mostly led by power companies.Natural gas is primary energy,so taking gas companies as the main body in promoting the construction of energy Internet can make the Internet con-cept penetrate more deeply and thoroughly into the energy sector.China ′ s multi-energy complementary and energy Internet demonstration projects focus more on electricity interchanging,but the transmission loss of heat energy is much bigger than that of electricity and the proportion of heat energy in final energy demand is higher than that of electricity,so the construction of thermal LAN is more urgent than that of electric LAN.The conventional thinking pattern of economies of scale effect in pursuit of large capacity should be aban-doned,and the load that can be determined should be used as the basis.In combination with the energy-saving modification of existing buildings,a cross-border integrated energy-saving modification framework should be built.
出处
《中外能源》
CAS
2017年第12期15-23,共9页
Sino-Global Energy
基金
国家自然科学基金项目"分布式能源互联网协同优化方法与利益分配机制研究"(编号:71403162)
上海市青年科技英才扬帆计划项目(编号:17YF1406800)的资助
关键词
分布式能源
能源互联网
热融通
电融通
多能互补
节能改造
Distributed energy
Energy internet
Heat interchanging
Electricity interchanging
multi-energy complementary
energy saving modification
