In order to realize the horizontal integration and longitudinal penetration in the smart grid dispatching control system

a new data bus is proposed according to data transmission requirements such as safety and reliability

efficiency and real-time transregional and translevel transmission. Data bus technology is based on the integration and expansion of industrial bus technology

middleware technology

and subscribe/publish strategy in realizing horizontal transregional data transmission while supporting data interaction at all levels of the dispatching center. Data bus technology has been applied to the smart grid dispatching control system in achieving multistage scheduling deployment operation of the state power dispatching control center in East China

North China

and Central China. It is proved in practice that data bus technology is able to satisfy the data transmission needs of smart grid dispatching control systems and ensure safe and stable operation of smart grid dispatching and control systems.