Carbon emission impact on the operation of virtual power plant with combined heat and power system

• Published in: Frontiers of information technology & electronic engineering 2016-05, Vol.17 (5), p.479-488
• Main Authors: Xia, Yu-hang, Liu, Jun-yong, Huang, Zheng-wen, Zhang, Xu
• Format: Article
• Language: English
• Subjects: Alternative energy sources; Boilers; Carbon; Case studies; Cogeneration; Communications Engineering; Computer Hardware; Computer Science; Computer Systems Organization and Communication Networks; Distributed generation; Electric power systems; Electrical Engineering; Electricity distribution; Electronics and Microelectronics; Emission analysis; Emissions; Industrial plant emissions; Instrumentation; Networks; Power plants; Renewable resources; Virtual power plants; Wind power; 分布式发电; 排放影响; 模糊隶属度函数; 热电联产系统; 电厂; 碳排放; 虚拟; 运行
• ISSN: 2095-9184; 2095-9230
• DOI: 10.1631/FITEE.1500467

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 beat 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.