Research on Economic Operation of Multi-source Peak-Shaving Involving Nuclear Power

Abstract

With the development of economy, large-scale access of wind power generation and other non-schedulable resources, and the difference in load peaks and valleys in the power grid have also increased year by year, making the peaking pressure of power grids with thermal power generators as the peak-shaving subject even more severe. This paper studies the operating characteristics of nuclear power units and establishes a multi-source coordinated planning model for pumped-storage-nuclear-wind power-thermal power projects. The optimization goal is to minimize the overall cost of equal annual values, and to use nuclear power's safety-adjustable domains and operations as constraints. The example shows that the model built in this paper improves the capacity of system wind power absorption, and effectively relieves the peak pressure of conventional units, and improves the economic efficiency of power system operation.