摘要
本文提出了自能源(we-energy, WE)这一新的能源互联网基本能源单元,为新能源就地消纳、各类分布式电源的即插即用和产–消–储一体化的多能互补提供了一种能源管理策略.为处理自能源在不同运行条件下的多能协调控制与优化问题,建立了基于信息–物理–能源–经济系统(information-equipment-energy-economical system, IEEES)的四元模型,提出了自能源的4种运行模式.该模型利用自能源中信息、物理、能源和经济4个子系统的耦合特性,根据能源互联网运行态势进行模式转化,建立了对应的自能源状态方程,并进行了自能源分布优化、协同控制等典型应用场景的分析.通过经济优化,获取了多个自能源在市场交易中的最优策略,实现了自能源内部能源的合理分配.通过对自能源内部设备的协同控制,实现了在功率波动情况下并网点系统参数及能源交换的稳定.
This study aims to propose we-energy （WE）; which is a novel energy autonomous region. WE provides an energy management strategy for the local consumption of renewable energy; the plug-and-play of distributed generators; and the multi-energy complementation of production-consumption-storage integration. A quaternary model based on the information; physics; energy; and economic subsystems （Information-Equipment- Energy-Economical System; IEEES） was established to address the problems of multi-energy coordination and WE optimization under different operating conditions. Four operating modes of the WE were presented. Using the coupling characteristics of the abovementioned four subsystems; modal transformation was performed in accordance with the operational situation of the energy internet; and the corresponding state equations of the WE were established. The operation of the WE under several typical application scenarios; such as distributed optimization and coordinated control; was analyzed. An optimal marketing strategy between multiple WEs was established through economic optimization; which realized the appropriate allocation of energy sources inside the WE. Moreover; the coordinated control of inner devices of WE ensured the stability of both the parameters and energy exchange at grid-connected spots under fluctuating conditions.
作者
孙秋野
胡旌伟
张化光
Qiuye SUN;Jingwei HU;Huaguang ZHANG(College of Information Science and Engineering,Northeastern University,Shenyang 110819,China)
出处
《中国科学：信息科学》
CSCD
北大核心
2018年第10期1409-1429,共21页
Scientia Sinica(Informationis)
基金
国家自然科学基金重点项目(批准号:61433004)
国家自然科学基金(批准号:61573094)
中央高校基础科研业务费(批准号:N140402001)资助项目
关键词
自能源
四元模型
信息-物理-能源-经济系统
运行模式
we-energy
quaternary model
information-equipment-energy-economical system
operating mode
