摘要
聚光太阳能热发电(CSP),又称光热发电,是集储热与产电为一体的可再生能源发电技术,具备良好的运行特性,有望成为服务于电力系统应急恢复的黑启动电源。基于此背景,该文对参与系统机组恢复充当黑启动电源的CSP电站运行优化展开研究。首先,通过场景分析法对太阳直接辐射进行不确定性分析处理,并建立CSP电站支撑电力系统机组恢复的双层优化模型;然后,针对模型制定双层优化求解框架,外层为系统机组恢复模型,求取系统机组恢复信息和CSP电站的功率输出,内层为计及机组恢复效益的CSP电站运行优化模型,求解CSP电站运行状态;最后,在含CSP电站的改进新英格兰10机39节点系统中对该文所提方法进行研究验证,结果表明该方法可以充分发挥CSP电站的灵活性,能够有效支撑机组恢复过程。
Concentrating solar power(CSP)is a renewable energy power generation technology that integrates heat storage and electricity generation.CSP power station is equipped with large capacity long-term energy storage device,which can realize energy time shift.In some areas that lack traditional black-start power source but have abundant lighting resources,CSP power station will become an ideal black-start power source.However,the operation mode of increasing the output power of CSP power station by absorbing excess light energy will reduce the reliability of system power supply capacity recovery,and is not suitable for power system recovery scenarios.Therefore,the operation optimization of CSP power station that participates in the power system unit recovery as a black-start power source is studied in the paper.The number of steps required for the output power of grid connected units to climb to the minimum technical output is used as a representation of unit recovery effect,and a CSP power station operation optimization method considering unit recovery effect is proposed in the paper.Firstly,considering the thermal storage level requirement of CSP power station as a black-start power source and the coordination relationship between the output power of CSP power station and the climbing output of grid connected units,a bi-level optimization model of CSP power station supporting power system unit recovery is established;Then,a bi-level optimization solution framework is developed for the model.The outer level is the power system unit recovery model to obtain the power system unit recovery information and the power output of the CSP power station;The inner level is the CSP power station operation optimization model that takes into account the unit recovery effect to solve the operation status of the CSP power station.Finally,the proposed method is verified in the improved IEEE39 bus system with CSP power station.The results indicate that the method can fully utilize the flexibility of CSP power station and effectively su
作者
孟荣涛
李少岩
顾雪平
刘艳
孙永昭
Meng Rongtao;Li Shaoyan;Gu Xueping;Liu Yan;Sun Yongzhao(School of Electrical&Electronic EngineeringNorth China Electric Power University,Baoding 071003 China;Xingtai Power Supply Branch of State Grid Hebei Electric Power Co.Ltd,Xingtai 054001 China)
出处
《电工技术学报》
EI
CSCD
北大核心
2023年第13期3486-3498,共13页
Transactions of China Electrotechnical Society
基金
国家自然科学基金(52107092)
河北省自然科学基金(E2019502195)
中央高校基本科研业务费专项基金(2021MS063)资助项目。
关键词
光热发电
黑启动电源
机组恢复效益
双层优化
Concentrating solar power
black-start power source
unit recovery effect
bi-level optimization
