Position closed-loop control device and method for electric transmission excavator

The invention relates to the technical field of electric transmission control intelligent program control, in particular to a position closed-loop control device and method for an electric transmission excavator. The device includes a left electric crossed handle (15), a right electric crossed handle (16), an instruction distributor (17), a bucket angular displacement sensor (18), a bucket rod angular displacement sensor (19), a movable arm angular displacement sensor (20), a controller (21), a bucket rod pilot electromagnetic valve (22), a bucket rod pilot proportional electromagnetic valve (23) and a movable arm pilot proportional electromagnetic valve (24). According to the position closed-loop control device and method for the electric transmission excavator, the instruction distributor is designed at the front end of the controller of a traditional electric transmission operation excavator, a space Descartes coordinate instruction of a rotating shaft of a bucket is mapped into a deflection angle instruct