Polyphase induction motor system and operating method

A method for energizing an induction motor comprising the steps of:

• providing a stator supported by a housing and including a plurality of stator conductors positioned around an axis of rotation, and a rotor including means for producing magnetic fields for magnetic interaction with said stator conductors, each of said stator conductors being defined as extending only once between opposite ends of said stator in an axial direction parallel to said axis of rotation;
• individually connecting each of said plurality of stator conductors to a source of energizing current such that each conductor is separately energized;
• and
• supplying energizing currents to said individual stator conductors in parallel such that said rotor is caused to rotate with preprogrammed characteristics.

A rotating machine system comprising:

• a housing;
• a stator supported by said housing and including a plurality of stator conductors;
• a rotor positioned adjacent to said stator and including means for producing magnetic fields, said rotor having an axis of rotation and being mounted in said housing for rotation about said axis of rotation;
• said stator and said rotor defining between them a gap for interaction of magnetic fields produced by said stator conductors and said rotor, said gap between said rotor and said stator being cylindrical in shape and concentric with said axis of rotation, and said stator conductors being shaped around said gap, each of said stator conductors being defined as extending only once between opposite ends of said stator parallel to said axis of rotation;
• controller means for individually supplying energizing currents to each of said stator conductors, said energizing currents collectively producing in said gap rotating magnetic fields which cause rotation of said rotor;
• and
• connection means for connecting said stator conductors electrically in parallel to said controller means such that each stator conductor is separately supplied with an appropriate energizing current and is not connected in series with other stator conductors.

An induction motor system comprising:

• a housing;
• a stator supported by said housing and including a plurality of stator conductors positioned around an axis of rotation, for producing magnetic fields when energized by an electric current, said stator conductors extending axially along the periphery of a generally cylindrical opening in said stator centered on said axis of rotation;
• a rotor positioned in said cylindrical opening and including means for producing magnetic fields for magnetic interaction with said stator conductors, said rotor being mounted in said housing for rotation about said axis of rotation;
• source means for supplying electrical energy to said motor system;
• and
• means for dynamically controlling currents individually and separately supplied in parallel from said source means to said stator conductors such that said rotor is caused to rotate with predetermined characteristics, each of said stator conductors being defined as extending only once between opposite ends of said stator and being electrically connected at said opposite ends to said control means, said control means including
• switching means for individually supplying a selected current through each of said stator conductors, in one direction or in the oppsite direction;
• memory means for storing a program for controlling the states of said switching means during operation of said induction motor system;
• and
• processor means for sequencing through said program so as to dynamically control the movement of said rotor in accordance with said program.

An induction motor system comprising:

• a stationary element including a plurality of parallel stationary element conductors for producing magnetic fields;
• a movable element positioned adjacent to said stationary element and including means for producing magnetic fields, said stationary element and said movable element defining between them a gap for interaction of said magnetic fields;
• controller means for individually supplying energizing currents to each of said conductors, said energizing currents collectively producing in said gap magnetic fields which cause movement of said movable element in a prescribed direction;
• each of said conductors being defined as extending only once across said stationary element in a direction perpendicular to said prescribed direction of movement;
• and
• connection means for connecting said conductors;
• electrically in parallel to said controller means such that each conductor is separately supplied with an energizing current and is not connected in series with other conductors.