Inductor type synchronous motor driving system for minute control of the position and the rotation angle of the motor

A fine control system for driving an inductor type synchronous motor comprising:

• an inductor type synchronous motor having a first inductor equipped with driving windings corresponding to m phases and a group of first magnetic teeth, and a second inductor equipped with a group of second magnetic teeth, m representing a positive interger;
• a DC power supply;
• a plurality of switches connected between the DC power supply and said driving winding for distributing the DC power supply voltage to said driving windings of said m phases, wherein said driving windings for one of said phases intersect flux of a portion of said first magnetic teeth and said portion includes at least two magnetic teeth having different fluxes in electrical phase which results in said first inductor forming a non-distortion electromagnetic construction thereby providing a sinusoitalized internal velocity electromotive force;
• control means for generating command pulse trains which denote positive and negative rotation and fine control mode command pulse trains;
• and
• distribution pattern generator means connected to said control means and responsive to the generation of a fine control mode command pulse train for controlling the on-off operation of said plurality of switches to cause a mean value of said supply voltage to said driving windings of said m phases to assume a trapezoidal waveform to provide AC components of said fed electric power which has an electric vector rotation angle which is accurately coincident with a balance point of magnetomotive force produced by said driving winding;
• whereby minute control is provided which is characterized by an electrical resolution number per electrical angle 2.pi. which is larger than 2 m.

A fine control system for driving an inductor type synchronous motor comprising:

• an inductor type synchronous motor having a first phases and a group of first magnetic teeth, and a second inductor equipped with a group of second magnetic teeth, m representing a positive interger;
• a DC power supply;
• a plurality of switches connected between the DC power supply and said driving winding for distributing the DC power supply voltage to said driving winding of said m phases, wherein said driving windings for one of said phases intersect flux of a portion of said first magnetic teeth and said portion includes at least to magnetic teeth having different fluxes in electrical phase which results in said first inductor forming a non-distortion electromagnetic construction thereby providing a sinusoidalizer internal velocity electromotive force;
• control means for generating command pulse trains which denote positive and negative rotation and fine control mode command pulse trains;
• and
• distribution pattern generator means connected to said control means and responsive to the generation of a fine control mode command pulse train for controlling the on-off operation of said plurality of switches to cause a mean value of said supply voltage to said driving windings of said m phases to assume a square waveform to provide AC components of said fed electric power which has an electric vector rotation angle which is accurately coincident with a balance point of magnetomotive force produced by said driving windings;
• whereby minute control is provided which is characterized by an electrical resolution number per electrical angle 2.pi. which is larger than 2 m.

A fine control system for driving an inductor type synchronous motor comprising:

• an inductor type synchronous motor having a first inductor equipped with driving winding corresponding to m phases and a group of first magnetic teeth, and a second inductor equipped with a group of second magnetic teeth, m representing a positive interger;
• a DC power supply;
• a plurality of switches connected between the DC power supply and said driving winding for distributing the DC power supply voltage to said driving winding of said m phases, wherein said driving windings for one of said phases intersect flux of a portion of said first magnetic teeth and said portion includes at least two magnetic teeth having different fluxes in electrical phase which results in said first inductor forming a non-distortion electromagnetic construction thereby providing a sinusoitalized internal velocity electromotive force;
• control means for generating command pulse trains which denote positive and negative rotation and fine control mode command pulse trains;
• and
• distribution pattern generator means connected to said control means and responsive to the generation of a fine control mode command pulse train for controlling the on-off operation of said plurality of switches to cause a means current to said driving windings of said m phases to assume a trapezoidal waveform to provide AC components of fed electrical power which has an electric vector rotation angle which is accurately coincident with a balance point of magnetomotive force produced by said driving windings;
• whereby minute control is provided which is characterized by an electrical resolution number per electrical angle 2.pi. which is larger than 2 m.

A fine control system for driving an inductor type synchronous motor comprising:

• an inductor type synchronous motor having a first inductor equipped with driving winding corresponding to m phases and a group of first magnetic teeth, and a second inductor equipped with a group of second magnetic teeth, m representing a positive interger;
• a DC power supply;
• a plurality of switches connected between the DC power supply the said driving winding for distributing the DC power supply voltage to said driving windings of said m phases, wherein said driving windings for one of said phases intersect flux of a portion of said first magnetic teeth and said portion includes at least two magnetic teeth having different fluxes in electrical phase which results in said first inductor forming a non-distortion electromagnetic construction thereby providing a sinusoidalized internal velocity electromotive force;
• control means for generating command pulse trains which denote positive and negative rotation and fine control mode command pulse trains;
• and
• distribution pattern generator means connected to said control means and responsive to the generation of a fine control mode command pulse train for controlling the on-off operation of said plurality of switches to cause a mean value of mean current to said driving winding of said m phases to assume a polygonal line approximation sign waveform to provide AC components of said fed electrical power which has an electric vector rotation angle which is accurately coincident with a balance point of magnetomotive force produced by said driving windings;
• whereby minute control is provided which is characterized by an electrical resolution number per electrical angle 2.pi. which is larger than 2 m.