When large-scale renewable energy is connected to the power grid, its fluctuation will affect the power balance and frequency stability of the system. By connecting the Energy Storage System (ESS) on the DC side of the DC transmission system, the stability of new energy access in the power grid can be effectively enhanced. This paper first analyzes the working principle and power instruction calculation method of the DC direct-mounted energy storage system (DCDM-ESS), which participates in stabilizing the output fluctuation of new energy and supporting the power grid with peak load and frequency regulation, then explains the priority allocation principle of DCDM-ESS participating in peak load and frequency regulation under transient/steady operation of the system, proposes the multi-objective coordinated control strategy of DCDM-ESS, and summarizes the energy management method of the system. Finally, the above strategies are verified by PSCAD/EMTDC offline simulation software.
No takes yet. Share an insight, caveat, or question.
Liang et al. (2024) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: