沙韵;周明;杨宏基;刘斯伟;李庚银;戚庆茹;

• 1:新能源电力系统国家重点实验室(华北电力大学)
• 2:国网经济技术研究院有限公司

摘要(Abstract)：

根据我国资源分布的特点,高比例可再生能源发电基地通过特高压直流输电实现跨区消纳将成为我国电力系统清洁化转型的主要运行场景之一。光热发电作为一种新兴的可再生能源发电形式,具有常规电源的惯性和可调度性,其灵活的运行方式在促进可再生能源消纳、参与电网调峰等方面具有显著优势。针对含光热电站的高比例新能源送端经特高压直流连接的互联系统优化运行,以减小整个系统运行成本、调峰成本和弃电成本为目标,协调考虑光热电站与直流输电线路的灵活调节能力,建立混合整数线性规划的调度模型。以西北某省电网2025年规划系统为算例,从运行经济性、调峰效果以及绿电效益3个角度对光热电站的灵活运行效益进行量化分析,结果显示光热电站的接入降低了系统的运行成本,在改善火电机组的调峰需求和减少大气污染物排放的同时可提升风光消纳水平,实现更高比例的电能来自于清洁能源,有利于电力系统的低碳化发展。

关键词(KeyWords)： 光热发电;高比例新能源;跨区消纳;优化调度;绿电指标

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2016YFB0900100);; 国家自然科学基金项目(U1866204);; 国网经济技术研究院有限公司科技项目(SGJY0000SDJS1900253)~~

作者(Author): 沙韵;周明;杨宏基;刘斯伟;李庚银;戚庆茹;

Email:

DOI: 10.13335/j.1000-3673.pst.2020.0215

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