Research on Grid-Connected Model of Distributed Generation Based on Colored Petri Net

Abstract

With the strategy of “Emission Peak” and “Carbon Neutrality” proposed the transformation and reform of the energy system are imminent. Building a new power system mainly composed of renewable power is one of the most important measures to achieve the dual goals on carbon. The stability and reliability of the new power system have become the focus of attention. Therefore, it is necessary to minimize the impact of distributed generation integration on the power system and find out the optimal configuration model. By studying the working mechanism of distributed generation such as wind power generation, photovoltaic power generation and energy storage power supply, this paper studies and summarizes the working strategy and operation mode during distributed power grid-connected and islanded operation, and further designs the distributed generation integration model based on Colored Petri Net for optimization. By deducing the configuration optimization of the grid connection model from the grid connection access point, network loss and economy, the analysis logic of the optimal grid connection access point, optimal grid connection capacity and optimal configuration is finally output. The method deduction shows that the grid connection model provides a new grid connection optimization method for distributed generation grid connection, which makes up for the relative instability of traditional grid connection in power system.