考虑功率交换的微电网群协同规划研究
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摘要
在由若干个子微电网组成的微电网群中,子微电网之间的功率交换在保障供电可靠性、促进可再生能源消纳和降低分布式电源投资方面发挥着重要的作用。文章以多个子微电网组成的微电网群为研究对象,研究了考虑各子微电网微源容量配置的微电网群规划问题。计及构成微电网群的各子微电网间的功率交换与能量流动,以总成本最小化为目标,考虑了不同容量配置方案下的微电网群在规划期内的运行优化问题,构建了混合整数规划模型,并采用Matlab/Gurobi进行求解。通过算例分析,对比了传统单微电网规划模型与所提出的微电网群协同规划模型下的投资及运行优化结果。结果显示,微电网群的协同规划可以避免不必要的投资,从而降低投资成本;微电网群间功率能够提升可再生能源的消纳空间,从而降低燃气机组的发电量,减少碳排放。
In a microgrid cluster which is composed of several child microgrids, the power exchange among child microgrids plays a significant role in ensuring the power supply reliability,promoting the accommodation of renewable energy sources and saving the investment of distributed generation. This paper takes a microgrid cluster composed of multiple child microgrids as the research object. The microgrid cluster planning problem considering the capacity planning of micro sources in each child microgrid is studied. The power exchange among child microgrids is considered. The objective is to minimize the total cost. The operation optimization of microgrid cluster under different capacity planning schemes is considered. A mixed integer programming is built and solved through Matlab/Gurobi. The investment and operation optimizations between traditional single microgrid planning model and the proposed new microgrid cluster planning model are compared through numerical analysis. The computational results show that:(1)The co-planning of microgrid cluster can avoid the unnecessary investment and save the investment cost.(2)The power exchange in microgrid cluster can improve the accommodation of renewable energy sources,reduce the power production of gas units and reduce the carbon emission.
In a microgrid cluster which is composed of several child microgrids, the power exchange among child microgrids plays a significant role in ensuring the power supply reliability,promoting the accommodation of renewable energy sources and saving the investment of distributed generation. This paper takes a microgrid cluster composed of multiple child microgrids as the research object. The microgrid cluster planning problem considering the capacity planning of micro sources in each child microgrid is studied. The power exchange among child microgrids is considered. The objective is to minimize the total cost. The operation optimization of microgrid cluster under different capacity planning schemes is considered. A mixed integer programming is built and solved through Matlab/Gurobi. The investment and operation optimizations between traditional single microgrid planning model and the proposed new microgrid cluster planning model are compared through numerical analysis. The computational results show that:(1)The co-planning of microgrid cluster can avoid the unnecessary investment and save the investment cost.(2)The power exchange in microgrid cluster can improve the accommodation of renewable energy sources,reduce the power production of gas units and reduce the carbon emission.
引文
[1]Nosratabadi S M,Hooshmand R A,Gholipour E.Acomprehensive review on microgrid and virtual power plant concepts employed for distributed energy resources scheduling in power systems[J].Renewable&Sustainable Energy Reviews,2017,67:341-363.
[2]Igualada L,Corchero C,Cruz Zambrano M,et al.Optimal energy management for a residential microgrid including a vehicle-to-grid system[J].IEEETransactions on Smart Grid,2017,5(4):2163-2172.
[3]刘振国,胡亚平,陈炯聪,等.基于双层优化的微电网系统规划设计方法[J].电力系统保护与控制,2015,43(8):124-133.
[4]杨家豪.基于一致性算法的孤岛型微电网群实时协同功率分配[J].电力系统自动化,2017,41(5):8-15.
[5]霍现旭,吴鸣,徐科,等.考虑不确定性的微电网储能系统容量配置[J].可再生能源,2018,36(4):544-549.
[6]苏晨,吴在军,周力,等.计及线路损耗的自治型微电网群分布式经济控制[J].电网技术,2017,41(6):1839-1846.
[7]陈刚,杨毅,杨晓梅,等.基于分布式牛顿法的微电网群分布式优化调度方法[J].电力系统自动化,2017,41(21):156-162.
[8]刘念,赵璟,王杰,等.基于合作博弈论的光伏微电网群交易模型[J].电工技术学报,2018,33(8):1903-1910.
[9]王皓,艾芊,吴俊宏,等.基于交替方向乘子法的微电网群双层分布式调度方法[J].电网技术,2018,42(6):1718-1725.
[10]王程,刘念.基于交替方向乘子法的互联微电网系统分布式优化调度[J].电网技术,2016,40(9):2675-2681.
[2]Igualada L,Corchero C,Cruz Zambrano M,et al.Optimal energy management for a residential microgrid including a vehicle-to-grid system[J].IEEETransactions on Smart Grid,2017,5(4):2163-2172.
[3]刘振国,胡亚平,陈炯聪,等.基于双层优化的微电网系统规划设计方法[J].电力系统保护与控制,2015,43(8):124-133.
[4]杨家豪.基于一致性算法的孤岛型微电网群实时协同功率分配[J].电力系统自动化,2017,41(5):8-15.
[5]霍现旭,吴鸣,徐科,等.考虑不确定性的微电网储能系统容量配置[J].可再生能源,2018,36(4):544-549.
[6]苏晨,吴在军,周力,等.计及线路损耗的自治型微电网群分布式经济控制[J].电网技术,2017,41(6):1839-1846.
[7]陈刚,杨毅,杨晓梅,等.基于分布式牛顿法的微电网群分布式优化调度方法[J].电力系统自动化,2017,41(21):156-162.
[8]刘念,赵璟,王杰,等.基于合作博弈论的光伏微电网群交易模型[J].电工技术学报,2018,33(8):1903-1910.
[9]王皓,艾芊,吴俊宏,等.基于交替方向乘子法的微电网群双层分布式调度方法[J].电网技术,2018,42(6):1718-1725.
[10]王程,刘念.基于交替方向乘子法的互联微电网系统分布式优化调度[J].电网技术,2016,40(9):2675-2681.