Wind-photovoltaic-storage capacity ratio scheme of source-grid-load-storage local area network under different power purchase ratios

In order to achieve the goal of 2030 carbon peak and 2060 carbon neutrality, China has accelerated the development of renewable energy. As a key strategy, the integrated local area network of source, network, load and storage can effectively integrate renewable energy such as wind energy and solar energy, and ensure the green transformation of energy. This paper mainly studies how to realize the stable operation of the local area network and the realization of the dual carbon goal by rationally configuring the wind, light and storage capacity under different power purchase ratios. Based on the analysis of source-grid-load-storage technology, planning strategy and system flexibility, this paper proposes a collaborative planning method, constructs the corresponding model, and carries out case verification. After comprehensively considering the economy and flexibility, the optimal capacity ratio scheme is obtained to ensure the scientificity and practicability of the scheme, which provides a theoretical basis for realizing the low-carbon transformation of the energy system.