Abstract
The combined heat and power economic dispatch (CHPED) problem enhances the conversion efficiency from fossil fuels into electricity, eventually reducing the green house gas. However, the optimization formulation for a popular bench-mark example has not properly considered the constraint of heat-power feasible operating region so far. Thus, this study proposes a novel technique to consider the non-convex heat-power feasible region in the CHPED problem more accurately. This study divides the non-convex operating region into two convex operating sub-regions by introducing two binary variables indicating the searching region. In addition, more accurate results and better demand constraints are proposed to more fairly compare the results for this bench-mark problem in the future.
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