蒋万枭;刘继春;韩晓言;丁理杰;胡灿;杨芳;彭钰祥;冯麒铭;

• 1:四川大学电气工程学院
• 2:国网四川省电力公司

摘要(Abstract)：

当前光伏等新能源的大规模应用在一定程度上缓解了全球能源短缺和环境污染问题,但新能源本身的间歇性和随机性问题使其无法独立完成供电,常常配置水电机组和抽水蓄能机组补偿光伏,形成水光蓄多能互补发电系统。大部分水光蓄多能互补发电系统修建在远离主电网的偏远地区,经常会出现离线运行的状况,由于无法与主电网完成电能交换,导致新能源渗透率较高的多能互补发电系统供电可靠性不如传统电网,合理配置系统备用容量是保证系统供电可靠性的关键。文章提出了在离网条件下考虑短时间尺度的水光蓄多能互补发电系统备用容量确定方法,建立了基于系统发电容量和备用容量耦合关系的两阶段优化模型。由于系统的备用容量受到系统的发电容量制约,因此,首先考虑系统的发电计划,完成系统小时级的发电容量配置,然后在此基础上进行基于机会约束的系统分钟级的备用容量优化,该机会约束使得离线系统实际运行时在某概率下可靠供电,符合实际电网运行时,允许出现短时间的功率不平衡的情况。仿真结果表明,与传统的系统备用配置原则相比较,合理设置机会约束的置信度可在系统运行成本增加幅度不大的情况下,大大提高水光蓄多能互补系统的供电可靠性。

关键词(KeyWords)： 水光蓄多能互补发电系统;离线;两阶段优化;机会约束;备用

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目“分布式光伏与梯级小水电互补联合发电技术研究及应用示范”(2018YFB0905200)~~

作者(Author): 蒋万枭;刘继春;韩晓言;丁理杰;胡灿;杨芳;彭钰祥;冯麒铭;

Email:

DOI: 10.13335/j.1000-3673.pst.2019.1804

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