Research on Source - Grid Planning And Vulnerability Assessment of Low Carbon Station Area Based on Improved DEAHP Method

With the continuous development of the country “s new power system with new energy as the main body, the current low-carbon station area laclss efficient control means for multi-energy applications, and it is urgent to improve the station area ’s perception and control capabilities for photovoltaic power generation systems and wind power generation systems. When the power grid is connected to renewable energy, due to its intermittent and random operation characteristics, unstable output characteristics and uncontrollable source power, the power grid will inevitably have some unpredictable fragile characteristics in structure and operation. In this paper, a vulnerability assessment method with uncertainty measure is proposed by establishing a multi-scenario planning model of the system and evaluating the vulnerability of power grid components from multiple perspectives. Through the verification of simulation data, this method can effectively identify the weak nodes and branches in the power grid of low-carbon districts, and can provide power grid security early waruing information for operation analysts and dispatchers.