电网技术Issue(4)：994-1000,7.DOI:10.13335/j.1000-3673.pst.2014.04.026
电力系统短期运行充裕性评估及决策
Assessment and Decision-Making of Power System Short-Term Operation Adequacy
摘要
Abstract
ABSTRACT:Grid-connection of a lot of randomly fluctuating renewable resources greatly impacts the operation adequacy of power grid, so how to accurately assess the operation adequacy and the operation adequacy based scheduling decision are the new problems that the power grid containing new energy resources has to be faced with. Taking the wind farm for example and considering the bilateral random factors from power resources and load, several traditional reliability evaluation indexes are improved and spread into short-term operation adequacy assessment, and on this basis a new adequacy index is proposed and the mathematical meaning and calculation method of the proposed new index are discussed. Taking the unit commitment containing wind power system as example, the application of the proposed index in the decision of short-term operation adequacy is researched. In the case study, firstly the adequacy assessment of RBTS is performed, and then a unit commitment scheme under the constraint of the proposed adequacy index is put forward. Calculation results show that the proposed index can depict the impact of random factors on system operation adequacy more accurately, and the adequacy index based unit commitment decision can give unit commitment schedulings under different adequacy levels and output schemes as well as corresponding quantized value of system adequacy. Results of this research offer an assessment method and a set of assessment indices for short-term operation adequacy under large-scale grid-connection of randomly fluctuating power resources.关键词
风力发电/随机性/充裕性评估/运行失负荷期望/延迟失负荷概率Key words
wind power generation/randomness/adequacy assessment/operational expected load not served/buffered loss of load probability分类
信息技术与安全科学引用本文复制引用
薛志英,周明,李庚银..电力系统短期运行充裕性评估及决策[J].电网技术,2014,(4):994-1000,7.基金项目
国家科技支撑计划项目(2013BAA02B01)；国家自然科学基金项目(51177043)；中央高校基本科研业务费专项资金项目(11QX45)。 （2013BAA02B01）
