| 引用本文: | 肖定垚,王承民,曾平良,孙伟卿.考虑可再生能源电源功率不确定性的电源灵活性评价[J].电力自动化设备,2015,35(7): |
| XIAO Dingyao,WANG Chengmin,ZENG Pingliang,SUN Weiqing.Power source flexibility evaluation considering renewable energy generation uncertainty[J].Electric Power Automation Equipment,2015,35(7): |
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| 摘要: |
| 灵活性是衡量电力系统应对不确定性能力的重要指标。针对可再生能源发电所带来的功率不确定性，以灵活性特点分析为基础，提出衡量系统电源灵活性的数学模型及灵活性综合评价体系：电源灵活性模型考虑了可再生能源出力的最大突变量，并将约束条件细分为传统约束和灵活性资源约束2个方面；灵活性综合评价体系中，依据控制手段和研究对象不同，建立灵活性评价表，反映电力系统运行时的灵活性状态、变化及趋势，固有灵活性指标可比较不同运行状态和不同电力系统之间的灵活性。算例分析验证了该评价体系的有效性。 |
| 关键词: 可再生能源 电力系统 灵活性 不确定性 优化 综合评价表 固有灵活性 |
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| 基金项目:国家自然科学基金资助项目（51407117）；国家电网公司“千人计划”专项支持项目（CEPRI：XT71-12-028）；上海市青年科技英才“扬帆计划”项目（14YF1410100） |
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| Power source flexibility evaluation considering renewable energy generation uncertainty |
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XIAO Dingyao1, WANG Chengmin1, ZENG Pingliang2, SUN Weiqing3
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1.School of Electronic Information and Electrical Engineering，Shanghai Jiao Tong University，
Shanghai 200240，China;2.China Electric Power Research Institute，Beijing 100192，China;3.Department of Electrical Engineering，University of Shanghai for Science & Technology，Shanghai 200093，China
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| Abstract: |
| Flexibility is an important index to evaluate the ability of power system against the uncertainty. Aiming at the uncertainty caused by the renewable energy and based on the characteristic analysis of flexibility，a mathematic model with a comprehensive evaluation system is proposed to evaluate the source flexibility of power system. The source flexibility model considers the maximum mutation of renewable energy generation and divides the constraints into traditional constraints and source flexibility constraints. According to different control methods and objects，a flexibility evaluation table is built in the evaluation system to reflect the state，variation and trend of flexibility during power system operation. The inherent flexibility index is used to compare the flexibility among different operating conditions or power systems. Case analysis verifies the effectiveness of the proposed evaluation system. |
| Key words: renewable energy resources electric power systems flexibility uncertainty optimization comprehensive evaluation table inherent flexibility |
