Abstract:In order to tackle the limitations of the conventional busbar automatic transfer switch applied in the regional power grid,the concept of a new network busbar automatic transfer switch system with master - slave structure is presented aiming at the substations with sectionalized single - bus configuration,which has SBATS deployed in the substation and MBATS deployed in the EMS. Firstly,the restoration rule and operation mode of SBATS are propesed. SBATS selects the most appropriate restoration control strategy or asks help from MBATS on the basis of operation mode,MBATS sends the confirmed restoration control strategy to SBATS,which can avoid information redundancy and guarantee the validity and coordination of the restoration process. Finally,the results of calculation examples show that the propesed method is effective.