Control system, valve base control equipment and submodule integration method

The invention provides a control system, valve base control equipment and a submodule integration method. Valve base control equipment consists of two symmetric screen cabinets, wherein each screen cabinet is provided with a power supply unit, a current control unit and a bridge arm control unit; and controllers of the valve base control equipment, a control system and a submodule are connected with one another through optical fibers. All communication interfaces are in a CRC (Cyclic Redundancy Check) check based optical fiber serial communication mode of a reverse Manchester encoding form, so that data throughput is greatly increased, system control time delay is reduced, and real-time control and protection functions of a modularized multi-level flexible direct current valve can be finished. In the method, a hardware structure of the current control unit and the bridge arm control unit is adopted, so that system-level current balance control and valve-level capacitive voltage balance control are clearly divided, and the requirements for modularized multi-level real-time control are met.