One seed module distributed control method, device and system

The present invention provides a seed module distributed control method, by the way that the submodule of each bridge arm is grouped, every group correspond to a valve arrangement, top level control device calculates the weight of each group according to bridge arm current, the average voltage of the normal submodule of each group and number, and the submodule number that should be put into reference to corresponding bridge arm calculates the submodule number that each group is put into and issues valve arrangement now, pressure strategy and the gating method work that valve arrangement provides according to existing literature.