大规模风光火容量配置研究分析

Research and Analysis on Capacity Allocation of Large Scale Wind-PV-Thermal-Bundled Power

"三北"地区的弃风、弃光一直是制约新能源发展的大问题,通过制定合适的风、光、火电源配置方案,在保证电网稳定的同时能有效提高新能源消纳能力。根据历史气象数据结合新能源实际出力数据,确定风、光出力特性,拟定不同的风、光、火容量配置方案,以负荷年出力和日出力曲线作为送电曲线,进行计算,分析新能源利用率、弃电量等指标,最后选出最优方案。针对±800 k V哈密至郑州直流输电工程完成电源优化配置,结果显示,风、光、火多电源系统中,新能源的消纳主要受容量配置比例、火电调峰能力及新能源出力与负荷出力的同频程度影响。

Northw est,north,and northeast China of abandoned w ind and abandoned light has been the big problem restricting the development of new energy. It can ensure the stability and effectively of system and improve the ability of new energy accommodation by making the appropriate configuration scheme of w ind-PV-thermal-bundled pow er system.According to the historical w eather data combined w ith new energy output data,this paper determines the w ind and photovoltaic output characteristics,develops different w ind-PV-thermal-bundled pow er schemes,and takes the annual output and daily output curves of load as sending electrical curves to calculate and analyze the new energy utilization,w aste electricity and other indicators. Finally,this paper chooses the optimal scheme. The pow er allocation optimization is completed for the ± 800 k V Hami-Zhengzhou HVDC transmission project,w hose results show that,in the w ind-PV-thermalbundled pow er system,the new energy accommodation is mainly affected by the capacity allocation ratio,pow er peaking capacity,the synchronous output of new energy and load.