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Peer-to-Peer Transaction Network with Shared Energy Storage in Transmission Grid

With the increasingly concern on climate change, China has put forward the goal of achieving carbon peak in 2030 and carbon neutralization in 2050. Power systems all over the world are developing towards low-carbon, cooperative and distributed systems. The scale of renewable energy sources (RES) has increased rapidly. Due to the randomness and intermittence of RES, the pressure of the consumption of RES is increasing. Shared energy storage (SES), which enhances the flexibility of power system, by decoupling power production and consumption in time, is essential to stabilize the random fluctuation of RES in transmission grid. The peer-to-peer(P2P) transaction network with SES model in transmission grid is proposed in this paper. The equilibrium solution based on KKT condition and big-M method is given. Numerical results show that renewable generators can benefit from the transaction network and SES can also benefit from P2P energy transaction network.