张适宜;周明;黄瀚燕;黄越辉;李庚银;

• 1:新能源电力系统国家重点实验室(华北电力大学)
• 2:中国电力科学研究院有限公司

摘要(Abstract)：

基于模块化多电平换流器(modularmulti-level converter,MMC)的多端柔性直流(multi-terminal high voltage direct current transmission,MTDC)汇集系统因其灵活的调控能力可提升新能源的消纳水平以及新能源基地的并网友好性。该文针对新能源基地多端柔性直流汇集系统的运行灵活性开展研究。针对新能源基地出力不确定性和相关性,采用Pair-copula模型结合2m+1点估计法进行建模;考虑风–光–储多源互补和MMC-MTDC协调控制,建立了弃风弃光最小、运行网损最小和直流电压偏差最小的多维度运行灵活性优化模型,利用内点法进行求解;参照张北新能源汇集工程构建算例,验证了所提新能源出力建模方法的有效性;所建的运行灵活性优化模型能够给出多换流站的协调控制策略,同时实现风、光、储等多资源的优化调度;所建模型还可分析汇集系统运行灵活性的影响因素,并能给出汇集系统运行的灵活调节域。

关键词(KeyWords)： 新能源汇集系统;运行灵活性;MMC-MTDC;复杂相关性

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2016YFB0900100);; 国家自然科学基金委员会-国家电网公司智能电网联合基金项目(U1866204)~~

作者(Author): 张适宜;周明;黄瀚燕;黄越辉;李庚银;

Email:

DOI: 10.13335/j.1000-3673.pst.2019.1405

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