Two Degrees Of Freedom Dual Redundant Stepper Motor Drive Control System

The dissertation discusses and analyzes particularly the structures and work theories of hybrid step motor and variable reluctance step motor. In particular, it puts emphases on theroretic study and technical argumention about subdivision control technique and drive circuit of step motor. 16bits single-chip microcomputer realizes to digitally control some satellite's solar panel of a two degree of freedom precision driver system.The system is based on chopper constant current drive technique, according to the top level design idea, adopting advanced specical subdivision control integrate circuit and powerful function 80C196KC to organize the system frame, desiging the minimum system of single-chip microcomputer, multifunction I/O interface circuit,relay switch circuit,keyboard and display circuit,multifunction digital setting interface circuit and so on,utilizing the HSO and HSI interface circuit which are owned by this single-chip microcomputer exclusively and its powerful command system to realize dual-degree switch control,automation orientation, automatically searching zero position, locking machine when stopping, frequency to set digitally, automatically adjusting speed through changing frequency, swithing subdivision or squarewave control,on the basis of above,the system also have the function of running according to the setting steps and the frequency,voltage and current to display through the LED,etc.To measure running of system indicate: the system's function of hardware and software is all ready, the operation is convenient, the degree of intelligent is high, it has the high orientation veracity, running stability and some other advantages. Now, it has already checked before acceptanced to pass.