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计及需求侧管理的多电-气互联综合能源系统分散协调调度
魏震波, 黄宇涵
四川大学 电气与信息学院,四川 成都 610065
摘要:
针对电、气、热相耦合的多电-气互联综合能源系统(IEGES),将高渗透率区域和低渗透率区域作为不同的利益主体,提出一种考虑日前联络线调度计划的多IEGES分散协调调度模型。在对各区域内热电解耦热电联产机组(CHP)等元件建模的基础上,引入考虑用户满意度的需求侧管理,以经济环境效益为目标,采用目标级联分析法——将单个全局变量联络线功率分解为2个局部变量,再代入各自区域内优化元件出力计划,进行求解。在一个含3个IEGES的综合系统中对所提模型进行仿真实验,验证了所建模型和求解方法的合理性与有效性。结果表明:联络线电量交互、需求侧管理和热电解耦CHP的协调配合增强了整个系统时空源荷匹配,在经济、环境和风电消纳等方面也更具优势;基于目标级联分析法的分散协调调度更适合于未来电力市场开放环境下的多IEGES分区自治优化。
关键词:  多电-气互联综合能源系统  风电消纳  需求侧管理  源荷协调  分散协调调度  交互功率
DOI:10.16081/j.epae.201908012
分类号:TM734
基金项目:
Decentralized coordinated dispatch for multiple integrated electricity-gas energy systems considering demand side management
WEI Zhenbo, HUANG Yuhan
School of Electrical Engineering and Information, Sichuan University, Chengdu 610065, China
Abstract:
In the light of multiple IEGESs(Integrated Electricity-Gas Energy Systems) with the coupled energy sources including power, gas and heating, a decentralized coordinated dispatch model for multiple IEGESs is proposed, which regards IEGESs with high penetration of wind power and IEGESs with low penetration as different stakeholders and takes the tie-line day-ahead dispatch planning into consideration. On the basis of modeling of a number of components like thermoelectric decoupling CHP(Cooling Heating and Po-wer),and the demand side management with the satisfaction of customers taken into account is introduced in this model with an objective of maximizing economic and environmental benefits. The employed analytical target cascading method decomposes the single global variable(tie-line power) into two local variables, and then the component output plan is optimized by taking the local variables into their respective areas. A comprehensive system composed of three modified IEGESs is employed for simulation to verify the rationality and validity of the established model and solving method. Results show that with the coordination of tie-line interactive power, demand side management and thermoelectric decoupling CHP, the space-time matching degree of system source and load is increased and has more advantages on the aspects of economy, environment and consumptive ability of wind power. Furthermore, the decentralized coordinated dispatch approach based on analytical target cascading theory is better for regional autonomy optimization in multiple IEGESs in the coming background of open electricity market.
Key words:  multiple integrated electricity-gas energy system  wind power accommodation  demand side management  coordination of source and load  decentralized coordinated dispatch  interactive power

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