**5. Conclusions**

In order to achieve the balance between the fairness and economy of power system operation, an impartial and open dispatching model based on the Gini coefficient is proposed in this paper. The theoretical analysis and simulation results show the following:


3. The research in this paper is limited to the theoretical study of models and methods, and the proposed method cannot meet the computational requirements of optimal scheduling of large-scale power systems in terms of computational speed and computational convergence. However, the model presented in this paper has been put into trial operation in the monthly power generation scheduling in a provincial power grid in China. The next study content of the authors is to simplify the model and algorithm so that they could be applied to the actual dispatching work.

**Author Contributions:** Methodology, L.S.; Supervision, W.-d.L.; Writing—original draft, N.L.; Writing—review & editing, N.Z. and Z.-r.S. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by The National Basic Research Program (China): gran<sup>t</sup> number 51607021.

**Conflicts of Interest:** The authors declare no conflict of interest.
