电网技术2017，Vol.41Issue(7)：2187-2194,8.DOI:10.13335/j.1000-3673.pst.2016.2473
基于系统灵活性的可再生能源接纳评估
Assessment of Renewable Energy Accommodation Based on System Flexibility Analysis
摘要
Abstract
Traditional methods of unit commitment based on power balance can satisfactorily deal with small system uncertainty mainly from load variation. However, with high proportion of renewable energy generation, traditional methods are difficult to meet need of renewable energy accommodation because of much severer power variation and large uncertainty in system, and assessing system capability of accommodating renewable energy becomes more and more important. Based on system flexibility analysis, this paper presents a method to assess system capability of renewable energy accommodation. Firstly, flexibility resources in system are analyzed and quantified in power regulation range. Then based on the observation that renewable energy curtailment stems from flexibility unbalance in power system, modeling of system flexibility adequacy is proposed . Finally, the method is illustrated by its application in a provincial power system to guide operators to arrange flexibility resources properly and improve system ability to accommodate renewable energy. In addition, some measures to enhance system's renewable energy accommodation are discussed,such as participation of self-owned-generation in power regulation and utilization of storage facilities, to further assess ability to accommodate renewable energy in different forecasting error levels.关键词
高比例可再生能源系统/可再生能源消纳/开机方式/灵活性充裕度Key words
large proportion of renewable energy sources/renewable energy accommodation/unit commitment/adequacy of system flexibility分类
信息技术与安全科学引用本文复制引用
李则衡,陈磊,路晓敏,张毅威,徐飞,严干贵,齐军,侯佑华,王小海..基于系统灵活性的可再生能源接纳评估[J].电网技术,2017,41(7):2187-2194,8.基金项目
国家科技支撑计划项目(2015BAA01B03) （2015BAA01B03）
国家自然科学基金项目(51377002) （51377002）
国家电网公司科技项目(SGTJ0000KXJS1500072).Project Supported by the National Science and Technology Support Program (2015BAA01B03) （SGTJ0000KXJS1500072）
National Natural Science Foundation of China (51377002) （51377002）
Science and Technology Foundation of SGCC (SGTJ0000KXJS1500072). （SGTJ0000KXJS1500072）
