FRS-based decision table reduction for the operation optimization of large coal-fired power units

Ning-Ling Wang, De-gang Chen, Yongping Yang, Ting Zhang
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Abstract

Large coal-fired power unit is a complex nonlinear system with more uncertainties to describe, evaluate and optimize. It is essential and difficult to determine the optimal targets in operation optimization of power units, especially considering the boundary constraints, operation conditions and system features. Fuzzy rough set (FRS)-based decision table reduction was introduced to clean the historian operation data efficiently without information losses. The result shows that the derived energy consumption decision rules can be used to determine the optimal targets quickly and dynamically for different boundary and operation conditions. It makes significant reference and promising prospects in energy-consumption diagnosis and operation optimization of power units.
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基于frs的大型燃煤机组运行优化决策表约简
大型燃煤发电机组是一个复杂的非线性系统,具有较多的不确定性,难以描述、评价和优化。在发电机组运行优化中,确定最优目标是必要的,也是困难的,特别是考虑到边界约束、运行条件和系统特性。引入基于模糊粗糙集(FRS)的决策表约简,在不丢失信息的情况下高效地清理历史运行数据。结果表明,所建立的能耗决策规则可以快速、动态地确定不同边界和运行条件下的最优目标。对机组能耗诊断和运行优化具有重要的参考意义和广阔的应用前景。
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