摘要
大力开发和利用可再生能源是解决日益严重的能源危机和环境污染问题的有效途径。随着大规模风电和光伏场站的投运,许多地区出现严重的弃风弃光情况,因此新能源消纳问题亟待解决。构建了包含抽蓄-风-光-火的联合发电系统调度模型,以联合发电系统运行成本最低、新能源消纳最大、出力与负荷偏差最小为优化目标函数,同时量化分析碳排量和火电波动性,分别运用改进粒子群算法求解不同场景下甘肃地区某能源基地抽水蓄能电站夏季典型日以及冬季典型日的日出力情况,结果表明,抽水蓄能电站的加入可以降低运行成本10.22万元,减少碳排放量189.55 t以及提高火电稳定性3.45%,联合发电系统新能源消纳能力得到增强,改变电源容量配置,联合发电系统各指标与可再生能源渗透率呈非线性相关关系。最后,在多目标优化计算中给出合理弃能方式下的各电源优化运行方案。
Vigorously developing and utilizing renewable energy is an effective way to solve the increasingly serious energy crisis and environmental pollution.With the commissioning of large-scale wind power and photovoltaic(PV)farms,serious wind and light abandonment has occurred in many areas,so the problem of new energy consumption needs to be solved urgently.In this paper,we firstly constructed a joint power generation system scheduling model including pumped storage-wind-optical-fire,with the optimization objective function of minimum operating cost,maximum new energy consumption,and minimum deviation of output and load,and quantitatively analyzed the carbon emission and thermal power volatility,and used the improved particle swarm algorithm to solve the daily outputs of pumped storage power station of a certain energy base in Gansu region in different scenarios for a typical day in summer and a typical day in winter,and the results showed that the daily outputs of a certain energy base in Gansu region in summer and winter were the same as the daily outputs in winter.The results show that the addition of pumped storage power plant can reduce the operation cost by 102200 RMB,reduce carbon emission by 189.55 t,and improve the stability of thermal power by 3.45%,so that the new energy consumption capacity of the combined system is enhanced;by changing the capacity configuration of the power supply,the indexes of the combined system and the penetration rate of renewable energy show a nonlinear correlation.Finally,the optimal operation scheme of each power source under the reasonable energy abandonment mode is given in the multi-objective optimization calculation.
作者
刘姮
LIU Heng(State Grid Baiyin Power Supply Company,Baiyin 730900,China)
出处
《电工技术》
2024年第24期137-142,159,共7页
Electric Engineering
关键词
多能互补
高比例可再生能源
多目标优化
抽水蓄能电站
合理弃能
multi energy complementarity
high penetration of renewable energy
multi-objective optimization
pumped storage power station
rational abandonment of energy
