Dynamic Economic Dispatch in Thermal-Wind-Small Hydropower Generation System

摘要：

　　With the large-scale wind power integration,the uncertainty of wind power poses a great threat to the safe and stable operation of the system.This paper proposes dynamic economic dispatch problem formulation in thermal power system incorporating stochastic wind and small-hydro(run-in-river)power,called thermal-wind-small hydropower system(TWSHS).Weibull and Gumbel probability density functions are used to calculate available wind and small-hydro power respectively.An improved differential evolution algorithm based on gradient descent information(DE-GD)is proposed to solve the dynamic economic dispatch(DED)problem considering uncertainty of wind power and small-hydro power,as well as complicated constraints in TWSHS.Based on the traditional differential evolution algorithm,the gradient information of the objective function is introduced after the mutation process to enrich the diversity of the population,thus increasing the possibility of convergence to the global optimization.Generation scheduling is simulated on a TWSHS with the proposed approach.Simulation results verify feasibility and effectiveness of the proposed method while considering various complex constraints in the thermal-wind-small hydropower system.

作者: Guangbiao Liu Jianzhong Zhou Xiaogang Xiao Li Mo Yang Yuqi Lu Chengwei

作者单位: School of Hydropower and Information Engineering,Huazhong University of Science and Technology,Wuhan Central China Power Grid Company,Wuhan,Hubei 430077,China

会议类型: 国际会议

会议名称: 2018 International Symposium on Water System Operations(ISWRSO 2018)(2018年水资源系统及调度国际研讨会)

会议地点: 北京

会议语种:英文

页码: 1-7

在线出版日期: 2018-10-12（万方平台首次上网日期，不代表论文的发表时间）