Combining electricity load forecasting and dynamic economic dispatch by a time fusion framework

Traditional method carries out electricity load forecasting (ELF) and dynamic economic dispatch (DED) separately and only provides DED with one group of power loads at the end of ELF in each period. In this situation, DED will not schedule the power outputs of conventional units for current period until ELF is finished. In this paper, we propose a time fusion framework (TFF) to improve the comprehensive efficiency of ELF and DED. TFF introduces an overlapping ratio of time to control the overlap between ELF and DED in each period, which enhances the relationship between the two works. Accordingly, ELF can provide DED with more than one group of power loads, and DED can be involved in the calculations on the power outputs of conventional units in advance rather than waiting for the final power loads of ELF passively. One instance is used to investigate and compare the performance of two methods, and experimental results show that the new method with different overlapping ratios have reduced fuel cost to relatively low levels compared to traditional one in thirty independent runs.