CAJ | 학술논문

由于风电出力的高不确定性,大规模风电并网改变了现有的电源结构,使电力系统的安全稳定运行面临巨大挑战.准确评估次日各时段风电消纳能力对于合理制定日前调度计划具有重要意义.基于场景分析方法建立了单个风电接入点的含风电日前经济调度模型,提出了综合考虑负荷需求、备用需求、机组参数以及线路传输容量的电网风电消纳能力评估方法.通过求解混合整数线性规划模型得到综合考虑鲁棒性和经济性的评估结果,可为制定调度计划提供依据.基于IEEE 24节点系统的算例测试验证了所提方法的有效性.
유우풍전출력적고불학정성,대규모풍전병망개변료현유적전원결구,사전력계통적안전은정운행면림거대도전.준학평고차일각시단풍전소납능력대우합리제정일전조도계화구유중요의의.기우장경분석방법건립료단개풍전접입점적함풍전일전경제조도모형,제출료종합고필부하수구、비용수구、궤조삼수이급선로전수용량적전망풍전소납능력평고방법.통과구해혼합정수선성규화모형득도종합고필로봉성화경제성적평고결과,가위제정조도계화제공의거.기우IEEE 24절점계통적산례측시험증료소제방법적유효성.
With increasing penetration of wind power to grid, great changes have taken place in composition of the power sources and serious challenges arise in maintaining security and stability in power system operation due to high uncertainties of wind power. In determining the day-ahead power generation scheduling, it is of great importance to obtain an accurate estimation on permissible wind power penetration in each time period of the next day. A scenario-based day-ahead economic dispatch formulation with single wind power plant is established and then, a method for evaluating permissible wind power penetration is established with consideration of load demands, spinning reserve requirements, unit parameters and transmission limits. By solving a mixed integer linear programming based formulation, evaluation results for each time period considering both robustness and economy are obtained as the basis for determining the optimal scheduling. Numerical testing is performed with an IEEE 24-bus system and the results show the validity of the method.