Under the goal of the national dual carbon strategy, favorable policies related to national and local energy storage appear frequently, and the era of large-scale energy storage comes. Based on the analysis of relevant national energy storage policies, this paper points out that under the single business model of energy storage, its energy storage resources will lead to a large number of idle waste and low economic benefits, and then leads to the necessity of shared energy storage business model, Compared with the traditional single energy storage business model, shared energy storage has wider sources of income and higher return on investment; This paper expounds the characteristics of the multi-agent shared energy storage business model participated by the third party, points out the interest relationship among its subjects, and then analyzes the typical application scenarios and business model of shared energy storage combined with the case of Shandong shared energy storage; Finally, it combs the application technology of shared energy storage, analyzes the bilateral and unilateral transaction interest relationship of shared energy storage, puts forward the transaction mode of standardizing its single and bilateral cost sharing, and then studies the transaction architecture of shared energy storage system for multi-agent users in distribution network.
Zhangjiakou regional network belongs to the Jibei power grid in Northern China and locates at the midway of the power transmission corridor from Inner-Mongolia to the rest of Jibei power grid. Zhangjiakou regional network consists of several area networks connected to the main network through 500kV stations. In recent years, renewable energy in rural areas has developed rapidly and electrified railway traffic traction in urban areas is developing rapidly, which cause a significant impact on the power quality of the power supply system and even the main transmission network. In this paper, harmonic standards for power system planning in China are introduced firstly. Then the parameters of the minimum operation mode and the power supply capacity in harmonic planning are discussed. With the present standards, the determination principles and calculation procedures of the two parameters are proposed, to deal with the rapid development of the power grid.
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