SVG-Capacitor Joint Configuration Strategy for Photovoltaic Power Station Based on Comprehensive Cost Evaluation

In the dual-carbon environment, the grid-connection of photovoltaic power stations has increasingly become a low-carbon and green means of new energy generation. However, the uncertainty of the output of photovoltaic power stations has brought an impact on the power grid that cannot be ignored. How to reasonably allocate reactive power is an important guarantee to alleviate this problem. Therefore, an SVG-capacitor joint configuration strategy for photovoltaic power station based on comprehensive cost evaluation is proposed in this paper. First, an equivalent model of the external power grid of photovoltaic power stations is established to simplify the calculation difficulty. Secondly, SVG-capacitor joint allocation strategy for photovoltaic power stations based on the comprehensive cost evaluation is proposed, which takes the minimum comprehensive annual cost of SVG-capacitor configuration as the optimization objective, and takes into account the constraints of grid operation safety, reactive power compensation demand, capacity constraints, etc. Finally, the particle swarm optimization algorithm is used to optimize the solution. The simulation results verify the effectiveness of this strategy