The Research on Planning Methods for Energy Storage in Distributed Renewable Energy Distribution Networks

Ziyi Xuan; Yonggang Li

doi:10.54097/7pmdgm32

Authors

Ziyi Xuan
Yonggang Li

DOI:

https://doi.org/10.54097/7pmdgm32

Keywords:

Distribution network; Distributed renewable energy; Energy storage planning; Renewable energy integration.

Abstract

In order to accelerate the green transformation of the power grid, improve the absorption capacity of renewable energy, reduce distribution network operation costs, and balance the voltage stability issues caused by supply and demand fluctuations during different operating periods, this paper proposes an energy storage planning method for distribution networks with integrated distributed renewable energy.First, the load and renewable energy (wind and solar) data for the year are clustered to generate four temporal scenarios. Then, considering various economic costs associated with the operation of the distribution network as well as the investment and operational costs required for energy storage planning.Building upon this, an optimization model for the distribution network, both prior to and following the integration of energy storage planning, is developed, along with the associated constraints. Next, an optimization solution is sought using a weight-adaptive particle swarm optimization (PSO) algorithm. Finally, the effectiveness and feasibility of the energy storage planning are validated through simulation on the IEEE 33-bus test system. The simulation results show that after the introduction of energy storage planning, the overall operational cost of the distribution network with integrated distributed renewable energy is significantly reduced, while the voltage stability at each node during different periods is effectively improved.

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