摘要
在含高比例核电机组和新能源发电设备的沿海地区电网,系统调峰压力严峻。为了满足系统调峰需求,充分挖掘核电调峰潜力,建立核电灵活出力参与调峰的核-光-储-蓄-火联合运行优化调度模型。首先,针对核电灵活出力的非线性特性,采用0-1变量进行线性化有效约束;然后,充分考虑各电源的运行特性及成本,建立完整的系统运行约束;最后,在传统的以经济调度为优化目标的基础上,引入不同碳交易机制,并兼顾系统新能源消纳水平。算例分析验证了模型的有效性,结果表明,所提优化调度模型充分实现了核电的灵活出力,有效缓解了系统调峰压力,减少常规火电机组的频繁启停,并有效提高了新能源的消纳水平,使系统运行更加经济性和低碳性。
In the coastal power grid with a high proportion of nuclear power units and new energy power generation equipment,the pressure of peak regulation on system is severe.In order to achieve the demand of system peak regulation and fully explore the capacity of nuclear power peak regulation,the optimized dispatch model of nuclear-photovoltaic-electrochemical energy storage-pumped storage-thermal multi-source combined operation with flexible output of nuclear power to participate in peak regulation is established.Firstly,0-1 variables are used to accurately linearize the flexible address to nonlinear output of nuclear power.Secondly,complete system operation constraints is established,considering the operating characteristics and cost composition of each power unit.Finally,based on traditional economic optimization goal,different carbon trading mechanisms are introduced,considering the system′s new energy level.The simulation example verifies the effectiveness of the proposed model.The results show that the proposed scheduling model effectively alleviates the system′s peak pressure and reduces the frequent start-stop of thermal power units by the flexible output of nuclear power,thus improving the consumption level of new energy.The system operation is economical and low-carbon.
作者
吴熙
陈康文
郭其胜
刘奕晨
岳付昌
WU Xi;CHEN Kangwen;GUO Qisheng;LIU Yichen;YUE Fuchang(School of Electrical Engineering,Southeast University,Nanjing 210096,China;State Grid Lianyungang Power Supply Company of Jiangsu Electric Power Co.,Ltd.,Lianyungang 222004,China)
出处
《电力工程技术》
北大核心
2024年第6期1-11,共11页
Electric Power Engineering Technology
基金
国家重点研发计划资助项目“交通自洽多类能源技术效能评估方法研究”(2022YFB2603100)。
关键词
核电机组
核电调峰出力
多源联合运行
调峰策略
碳交易
优化调度
nuclear power unit
nuclear peak regulation capacity
multi-source combined operation
peak regulation strategies
carbon trade
optimized dispatch
