The Coordinated Planning of “Source-Load-Storage” Active Distribution Network under Low-carbon Economy

The carbon peaking and carbon neutrality goals makes the distribution network develop towards low carbon in China, environmental protection and economy, and the demand for new energy power generation resources with zero carbon emission is more urgent. However, how to balance the low-carbon cost and economic cost and realize the scientific planning and access of multiple flexible resource forms such as “source”, “storage” and “load” to the active distribution network (ADN) remains to be solved. Therefore, a bi-level planning model of the ADN was developed, which aims at carbon cost and economy, considering multiple flexible resource access. In the upper level planning, the distributed generations (DGs) and energy storage systems (ESSs) are located and rated with the objective of economy. In the lower level planning, the DG, interruptible load, and ESS are co-optimized with the objective of reducing network loss, and the modified particle swarm optimization algorithm is proposed for solution. The case study results show that the improved solution model can reduce carbon emissions obviously, and ensure the lowest comprehensive cost and realize ADN low-carbon economic operation.