Research on the investment benefit analysis of grid projects considering large-scale distributed PV access

Under the background of building a new power system with new energy as the main body, the traditional grid investment benefit evaluation model can no longer meet the needs of the new situation. The traditional grid investment considers more issues such as grid operation security and stability, and pays less attention to the analysis of investment costs and investment benefits. Therefore, it is of great significance to carry out the research on the investment benefit analysis of grid projects considering large-scale distributed PV access. In this study, a calculation model of the maximum access capacity of distributed photovoltaic (DPV) system is constructed, with the maximum access capacity as the objective function and the operation safety of power grid equipment as the constraint condition; Secondly, taking the maximum access capacity of distributed PV as the boundary condition, a quantitative model of grid investment benefit considering distributed PV access is proposed; Finally, assist in formulating the DPV access strategy to improve the grid investment benefit, and maximize the grid investment benefit under the premise of ensuring the consumption of DPV.