Simplified solid state electric motor drive technique

• US 20070222408A1
• Filed: 03/27/2006
• Published: 09/27/2007
• Est. Priority Date: 03/27/2006
• Status: Abandoned Application

• Current Assignee: William Hughes
• Original Assignee: William Hughes
• Inventors: Hughes, William
• Application Number:
  US11/390,031
• Publication Number:
  US 20070222408A1
• Time in Patent Office: Days
• US Class Current: 318/701
• CPC Class Codes: H02K 19/103 Motors having windings on the stator and a variable reluctance soft-iron rotor without windings
• CPC Class Codes: H02K 3/28 Layout of windings or of connections between windings windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32
• CPC Class Codes: H02P 25/092 Converters specially adapted for controlling reluctance motors

Abstract

A simplified solid state electric motor drive technique which may be used with a variable reluctance electric alternator or motor or similar device. The technique comprises the winding of the stator for each phase using two windings rather than the single, in series, winding of a conventional stator winding. A circuit is also provided in which a d-c power supply is connected through a switch to one stator winding and through a second switch to the second stator winding.

Claims

1. A simplified solid state electric motor drive technique for use with a variable reluctance electric alternator or motor, in which such alternator or motor includes at least one stator wound poly phase and in which the stator has a plurality of tabs upon which stator windings may be wound comprising:

(1) a stator winding one and a stator winding two for each phase of said alternator or motor such that stator winding one is wound about the appropriate series of tabs of the stator and stator winding two is wound about the next appropriate series of tabs of the stator and thus alternating until all of the tabs are wound; and

(2) a circuit for each pair of stator windings for each phase in which the circuit includes a d-c source and a switch one and a switch two such that when switch one is on and switch two is off d-c power is supplied to said stator winding one and not to said stator winding two and when said switch one in off and said switch two is on d-c power is supplied to said stator winding two and not to said stator winding one.

2. A simplified solid state electric motor drive technique for use with a variable reluctance electric alternator or motor, in which such alternator or motor includes at least one stator wound poly phase:

(1) a stator with two windings for each phase such that each winding has only one solid state switch; and

(2) a d-c power supply which can operate all gates of all the solid state switches without the necessity for isolated d-c power supplies for each switch.