摘要
针对风光出力固有的随机性、间歇性和波动性给电力系统稳定运行带来的影响,提出一种基于平抑风光波动的抽水蓄能电站容量规划模型。以风电、光伏联合出力的日内波动率最低为目标函数,并考虑火电机组运行成本构建模型;采用改进的混沌优化算法进行求解;以甘肃某区域电网为例,采用夏、冬季典型日2种场景下的算例分析,论证了不同装机容量的抽水蓄能平抑风光波动的效果以及对系统运行成本的影响,据此获得该区域电网抽水蓄能的最优装机容量参考值。
Given the influence of the inherent randomness,intermittency and fluctuation of wind-photovoltaic output on the stable operation of the power system,a capacity planning model of the pumped storage power station based on the smooth wind-photovoltaic fluctuation is proposed.Firstly,the minimum daily volatility of the combined output of wind power and PV is taken as the objective function and the operating cost of the thermal power unit is considered to build the model.Secondly,the improved chaos optimization algorithm is used to solve the model.Finally,taking a regional power grid in Gansu Province as an example,the effectiveness of different installed capacities of pumped storage energy in suppressing wind and solar fluctuations and their impacts on the system operating cost are demonstrated through case analysis under two typical scenarios of summer and winter.Based on this,the optimal reference value for the installed capacity of pumped storage energy in the regional power grid is obtained.
作者
杨昌海
张赛
王雪妍
孙亚璐
朱宏毅
沈渭程
YANG Changhai;ZHANG Sai;WANG Xueyan;SUN Yalu;ZHU Hongyi;SHEN Weicheng(State Grid Gansu Electric Power Company,Lanzhou 730050,Gansu,China;State Grid Gansu Electric Power Research Institute,Lanzhou 730070,Gansu,China;School of Electrical Engineering,Xi’an University of Technology,Xi’an 710054,Shaanxi,China)
出处
《电网与清洁能源》
CSCD
北大核心
2023年第7期140-146,共7页
Power System and Clean Energy
基金
国网甘肃省电力公司电力科学研究院科技项目(W22FZ2722052)
陕西省自然科学基础研究计划项目(2022JM-208)。
关键词
抽水蓄能
出力波动
容量规划
新能源发电
pumped storage
output fluctuation
capacity planning
new energy power generation