New energy generation technology has the prospect of large-scale development and commercialization, so it is of great significance to study the new energy consumption capacity of regional power grids, and to promote the planning of regional power grids to be compatible with new energy development. In this paper, considering various constraints, the optimal current calculation model is constructed, and the traditional time series production simulation is used to simulate the new energy consumption capacity of the system during the cycle. We introduce the associated cross-section limit calculation to reduce the risk of new energy abandonment and at the same time take into account the consumption capacity, and establish a linear tidal current-based calculation and new energy associated cross-section limit power optimization model. Simulation experiments are designed to evaluate the new energy consumption. Considering the new energy under the section constraints, the new energy output in the sending section increases continuously from 07:00 to 10:00, and the peak value reaches 2,452MW, meanwhile, the thermal power output in the section is automatically suppressed, and the section control is more delicate, which can greatly improve the utilization rate of the section. After simulation through the power system operation, it is found that there is a certain degree of wind abandonment in each scheme, among which the P2 scheme has the smallest wind abandonment, and the overall wind abandonment is 9217.195 MW•h, which is significantly smaller than the other schemes.
