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Front. Inform. Technol. Electron. Eng.  2016, Vol. 17 Issue (5): 479-488    DOI: 10.1631/FITEE.1500467
    
碳排放对虚拟发电厂热电联合系统运行的影响
Yu-hang Xia, Jun-yong Liu, Zheng-wen Huang, Xu Zhang
School of Electrical Engineering and Information, Sichuan University, Chengdu 610065, China; Brunel Institute of Power Systems, Brunel University, London UB8 3PH, UK; Guangzhou Power Supply Bureau, Guangzhou 510000, China
Carbon emission impact on the operation of virtual power plant with combined heat and power system
Yu-hang Xia, Jun-yong Liu, Zheng-wen Huang, Xu Zhang
School of Electrical Engineering and Information, Sichuan University, Chengdu 610065, China; Brunel Institute of Power Systems, Brunel University, London UB8 3PH, UK; Guangzhou Power Supply Bureau, Guangzhou 510000, China
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摘要： 目的：现有的研究在对虚拟发电厂运行建模时，通常只考虑了用户的电能需求，而且在利用热电联产机组(CHP)对用户供热时，不仅增加了虚拟发电厂的整体碳排放量，还会造成大量的弃风。考虑到虚拟发电厂内部风电机组出力时段和用户热能需求的互补性，本文提出了考虑碳排放的虚拟发电厂热电联合系统运行模型。
创新点：提出了在虚拟发电厂中配置电锅炉消纳风电机组出力。利用风电机组和电锅炉不仅能够减少虚拟发电厂的整体碳排放，促进风电的消纳，还能突破传统热电联产机组的供热水平，降低虚拟发电厂的运行成本。
方法：将电锅炉应用到虚拟发电厂的热电联合系统中后，建立了一个包含虚拟发电厂碳排放成本、虚拟发电厂运行成本和虚拟发电厂与主网的电量交易成本的多目标模型。根据模糊隶属度函数将其转化为单目标模型，并利用CPLEX工具包对其求解。然后分析了四种场景下的虚拟发电厂内部机组出力情况（图5-8）、碳排放量和电量交易成本。
结论：引入电锅炉后能够将热电联产机组的热电生产过程解耦，最大化消纳风电机组出力，降低虚拟发电厂的运行成本，还能显著降低虚拟发电厂的整体碳排放量。
关键词： 虚拟发电厂;  碳排放;  电锅炉;  风电;  热电联合    
Abstract: A virtual power plant (VPP) can realize the aggregation of distributed generation in a certain region, and represent distributed generation to participate in the power market of the main grid. With the expansion of VPPs and ever-growing heat demand of consumers, managing the effect of fluctuations in the amount of available renewable resources on the operation of VPPs and maintaining an economical supply of electric power and heat energy to users have been important issues. This paper proposes the allocation of an electric boiler to realize wind power directly converted for supplying heat, which can not only overcome the limitation of heat output from a combined heat and power (CHP) unit, but also reduce carbon emissions from a VPP. After the electric boiler is considered in the VPP operation model of the combined heat and power system, a multi-objective model is built, which includes the costs of carbon emissions, total operation of the VPP and the electricity traded between the VPP and the main grid. The model is solved by the CPLEX package using the fuzzy membership function in Matlab, and a case study is presented. The power output of each unit in the case study is analyzed under four scenarios. The results show that after carbon emission is taken into account, the output of low carbon units is significantly increased, and the allocation of an electric boiler can facilitate the maximum absorption of renewable energy, which also reduces carbon emissions from the VPP.
Key words: Virtual power plant (VPP)    Carbon emissions    Electric boiler    Wind power    Combined heat and power (CHP)
收稿日期: 2015-12-22 出版日期: 2016-05-04
CLC:  TM732  
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引用本文:

Yu-hang Xia, Jun-yong Liu, Zheng-wen Huang, Xu Zhang. Carbon emission impact on the operation of virtual power plant with combined heat and power system. Front. Inform. Technol. Electron. Eng., 2016, 17(5): 479-488.

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http://www.zjujournals.com/xueshu/fitee/CN/10.1631/FITEE.1500467    或    http://www.zjujournals.com/xueshu/fitee/CN/Y2016/V17/I5/479

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