风电和抽水蓄能电站联合运行可以平抑风电随机波动、提升风电消纳率。文章针对多个风电场的出力不确定性,采用概率性序列方法进行处理,提出了一种基于厂网协商机制的风电-抽水蓄能联合调度模式,并建立了基于机会约束规划的风电-抽水蓄...风电和抽水蓄能电站联合运行可以平抑风电随机波动、提升风电消纳率。文章针对多个风电场的出力不确定性,采用概率性序列方法进行处理,提出了一种基于厂网协商机制的风电-抽水蓄能联合调度模式,并建立了基于机会约束规划的风电-抽水蓄能互补系统短期优化调度模型。模型以风电-抽水蓄能互补系统总发电收益最大为目标,综合考虑了抽水蓄能电站的水力约束、机组运行约束和系统功率平衡约束。为提高模型求解效率并获得全局最优解,文章将原模型转换为混合整数线性规划(Mixed Integer Linear Programming,MILP)模型,最后使用商业化求解器LINGO进行求解。优化调度结果表明,抽水蓄能电站能够很好的补偿风电出力的波动性,并显著提升互补系统的总发电收益。展开更多
Because of the randomness of wind power and photovoltaic(PV)output of new energy bases,the problem of peak regulation capability and voltage stability of ultra-high voltage direct current(UHVDC)transmission lines,we p...Because of the randomness of wind power and photovoltaic(PV)output of new energy bases,the problem of peak regulation capability and voltage stability of ultra-high voltage direct current(UHVDC)transmission lines,we proposed an optimum allocation method of installed capacity of the solar-thermal power station based on chance constrained programming in this work.Firstly,we established the uncertainty model of wind power and PV based on the chance constrained planning theory.Then we used the K-medoids clusteringmethod to cluster the scenarios considering the actual operation scenarios throughout the year.Secondly,we established the optimal configuration model based on the objective function of the strongest transient voltage stability and the lowest overall cost of operation.Finally,by quantitative analysis of actual wind power and photovoltaic new energy base,this work verified the feasibility of the proposed method.As a result of the simulations,we found that using the optimal configuration method of solar-thermal power stations could ensure an accurate allocation of installed capacity.When the installed capacity of the solar-thermal power station is 1×106 kW,the transient voltage recovery index(TVRI)is 0.359,which has a strong voltage support capacity for the system.Based on the results of this work,the optimal configuration of the installed capacity of the solar-thermal power plant can improve peak shaving performance,transient voltage support capability,and new energy consumption while satisfying the Direct Current(DC)outgoing transmission premise.展开更多
文摘风电和抽水蓄能电站联合运行可以平抑风电随机波动、提升风电消纳率。文章针对多个风电场的出力不确定性,采用概率性序列方法进行处理,提出了一种基于厂网协商机制的风电-抽水蓄能联合调度模式,并建立了基于机会约束规划的风电-抽水蓄能互补系统短期优化调度模型。模型以风电-抽水蓄能互补系统总发电收益最大为目标,综合考虑了抽水蓄能电站的水力约束、机组运行约束和系统功率平衡约束。为提高模型求解效率并获得全局最优解,文章将原模型转换为混合整数线性规划(Mixed Integer Linear Programming,MILP)模型,最后使用商业化求解器LINGO进行求解。优化调度结果表明,抽水蓄能电站能够很好的补偿风电出力的波动性,并显著提升互补系统的总发电收益。
基金funded by Major Science and Technology Projects in Gansu Province(19ZD2GA003).
文摘Because of the randomness of wind power and photovoltaic(PV)output of new energy bases,the problem of peak regulation capability and voltage stability of ultra-high voltage direct current(UHVDC)transmission lines,we proposed an optimum allocation method of installed capacity of the solar-thermal power station based on chance constrained programming in this work.Firstly,we established the uncertainty model of wind power and PV based on the chance constrained planning theory.Then we used the K-medoids clusteringmethod to cluster the scenarios considering the actual operation scenarios throughout the year.Secondly,we established the optimal configuration model based on the objective function of the strongest transient voltage stability and the lowest overall cost of operation.Finally,by quantitative analysis of actual wind power and photovoltaic new energy base,this work verified the feasibility of the proposed method.As a result of the simulations,we found that using the optimal configuration method of solar-thermal power stations could ensure an accurate allocation of installed capacity.When the installed capacity of the solar-thermal power station is 1×106 kW,the transient voltage recovery index(TVRI)is 0.359,which has a strong voltage support capacity for the system.Based on the results of this work,the optimal configuration of the installed capacity of the solar-thermal power plant can improve peak shaving performance,transient voltage support capability,and new energy consumption while satisfying the Direct Current(DC)outgoing transmission premise.