Control method for multi-phase winding deflection scanning device

A control method for a multi-phase winding deflection scanning device, comprising:

• step 1:
• defining a coordinate axis;
• step 2:
• discretizing and digitizing a deflection scanning track of the multi-phase winding deflection scanning device (3), obtaining rectangular coordinate data (x, y) of finite scanning points on the deflection scanning track, and saving the data;
• step 3:
• translating the rectangular coordinate data (x, y) of the scanning points on the deflection scanning track into resultant exciting current data (Id, Iq), where Id represents direct axis component data, and Iq represents quadrature axis component data;
• step 4:
• decomposing the resultant exciting current data (Id, Iq) into n-phase winding exciting current data I1, I2, . . . , In according to a definite rule;
• step 5:
• generating n-phase control instruction electrical signals I1*, I2*, . . . , In* according to the n-phase winding exciting current data I1, I2, . . . , In;
• and
• step 6:
• generating n-phase exciting current according to the n-phase control instruction electrical signals I1*, I2*, . . . , In*, wherein the multi-phase winding deflection scanning device (3) achieves the function of controlling the deflection scanning track.