低碳背景下基于展开型表述的随机生产模拟
发布时间：2019-06-06 11:49
【摘要】：低碳背景下,清洁能源大规模并网后对系统低碳效益的影响越来越受关注,而常规生产模拟无法精确地对其做出评估。为此,借鉴展开型表述形式提出了一种富于结构性的随机生产模拟。该方法首先以同一时刻风速分布特性作为风电机组输出功率典型场景的选取依据,构造风电展开型表述模型;其次在保留负荷时序性基础上引入机组加载率,结合概率计算全面分析常规机组的启停因素,进而评估清洁能源并网对系统低碳效益的负面影响。同时在算法中,考虑了机组计划停运工况,保证模拟的合理性,并采用均摊舍入法减缓系统状态数的爆炸增长。通过算例分析进一步表明了所提模型和算法的正确性与优越性。
[Abstract]:Under the background of low carbon, more and more attention has been paid to the impact of clean energy on the low carbon efficiency of the system after large scale grid connection, but the conventional production simulation can not accurately evaluate it. For this reason, a structural stochastic production simulation is proposed by using the expanded expression for reference. Firstly, the wind speed distribution characteristics at the same time are used as the basis for the selection of typical scenarios of wind turbine output power, and the wind power expansion expression model is constructed. Secondly, on the basis of retaining load timing, the loading rate of the unit is introduced, and the starting and stopping factors of the conventional unit are analyzed comprehensively with probability calculation, and then the negative influence of clean energy grid connection on the low carbon benefit of the system is evaluated. At the same time, in the algorithm, the planned shutdown condition of the unit is considered to ensure the rationality of the simulation, and the homing method is used to slow down the explosion growth of the state number of the system. The correctness and superiority of the proposed model and algorithm are further illustrated by an example.
【作者单位】： 华北电力大学电气与电子工程学院;
【分类号】：TM614;TM743
，
本文编号：2494345
[Abstract]:Under the background of low carbon, more and more attention has been paid to the impact of clean energy on the low carbon efficiency of the system after large scale grid connection, but the conventional production simulation can not accurately evaluate it. For this reason, a structural stochastic production simulation is proposed by using the expanded expression for reference. Firstly, the wind speed distribution characteristics at the same time are used as the basis for the selection of typical scenarios of wind turbine output power, and the wind power expansion expression model is constructed. Secondly, on the basis of retaining load timing, the loading rate of the unit is introduced, and the starting and stopping factors of the conventional unit are analyzed comprehensively with probability calculation, and then the negative influence of clean energy grid connection on the low carbon benefit of the system is evaluated. At the same time, in the algorithm, the planned shutdown condition of the unit is considered to ensure the rationality of the simulation, and the homing method is used to slow down the explosion growth of the state number of the system. The correctness and superiority of the proposed model and algorithm are further illustrated by an example.
【作者单位】： 华北电力大学电气与电子工程学院;
【分类号】：TM614;TM743
，
本文编号：2494345
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