Power electronic control and protection device adopting hybrid topology communication structure and communication method

The invention discloses a power electronic control and protection device adopting a hybrid topology communication structure and a communication method, and belongs to the technical field of power electronics, the power electronic control and protection device comprises a plurality of power modules, an optical port adapter plate and a controller, the power modules are connected in series to form a power module group, and the optical port adapter plate is connected with the controller. The plurality of power module groups are connected in parallel to low-speed optical ports of the optical port adapter plates, and high-speed optical ports of the plurality of optical port adapter plates are connected to a high-speed optical port of the controller. According to the invention, the hardware design of the main controller is isolated from the number and the connection mode of the power modules, the purpose of flexible networking of various topologies of the power modules is achieved, and the limitation of the existing