Power System Economic Planning Considering "Source-Grid-Load-Storage" Coordination Operation

Urgent improvement is required for power network planning due to the reform of the energy system and the advancement of power system construction. The requirements have gradually changed from "keeping safety and reducing efficiency" to "improving both safety and efficiency". Combined with the construction process of the integrated Energy Internet, the multiple resources of the power system including "source-grid-load-storage" can be fully utilized to carry out network planning, which can help improve the power system control ability and the economic level of network operation. In this context, the progress of the energy revolution at home and abroad is investigated. Next, the current situation and challenges of China's power system economic planning are explained. Then, three aspects of network planning work considering "source-grid-load-storage" coordination are proposed in this work, i.e., multi-voltage levels, multi-complex elasticity, and multi-type complex scenarios, with the future roadmap of power system economic planning presented lastly.