Abstract
A Refined Load Distribution Method for Large Hydropower Stations With Multiple Units Considering Constraints of Substations
Highlights
In the context of carbon emissions peaks [1] and carbon neutrality [2], the energy structures and industrial layouts of various countries have changed to different degrees
Substation constraints are considered in the unit commitment and load distribution of hydropower stations for the first time
The complex constraints in the unit commitment and load distribution (UCLD)-SC are classified into three constraint sets, namely, constraint set for the hydropower station level (CS-HSL), constraint set of the substation level (CS-SL), and constraint set for the unit level (CS-UL)
Summary
In the context of carbon emissions peaks [1] and carbon neutrality [2], the energy structures and industrial layouts of various countries have changed to different degrees. The first category is the traditional methods, mainly including lagrangian relaxation (LR) [11], [12], nonlinear programming (NLP) [13], mixed integer linear programming (MILP) [14], [15] and dynamic programming (DP) [10], [16] These methods have gained elegant achievements for specific scenarios with simple constraints and small scales. There hasn't been a method to deal with the UCLD problem considering the constraint set of the substation level (CS-SL) (hereafter the " UCLD-SC") This has led to new and urgent requirements for power generation enterprises to strengthen the refined dispatching and management levels of hydropower stations, and to consider the substations constraints when modeling the UCLD problem; this is the main motivation of this study.
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