CONTROLLER FOR AC GENERATOR

• US 20110025143A1
• Filed: 08/02/2010
• Published: 02/03/2011
• Est. Priority Date: 02/02/2006
• Status: Active Grant

• Current Assignee: Charles Y. Lafontaine, Dave E. Williams, Harold C. Scott
• Original Assignee: Charles Y. Lafontaine, Dave E. Williams, Harold C. Scott
• Inventors: Williams, Dave E., Lafontaine, Charles Y., Scott, Harold C.
• Granted Patent: US 8,093,772 B2
• Time in Patent Office: Days
• US Class Current: 310/52
• CPC Class Codes: H02K 3/12 arranged in slots
• CPC Class Codes: H02K 3/24 with channels or ducts for cooling medium between the conductors
• CPC Class Codes: H02K 3/50 Fastening of winding heads, equalising connectors, or connections thereto
• CPC Class Codes: H02P 2101/45 for motor vehicles, e.g. car alternators
• CPC Class Codes: H02P 9/48 Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle H02P9/04 - H02P9/46 take precedence

Abstract

A control system that can accommodate the wide variations in the output of a generator, such as a permanent magnet alternator, while providing an output with relatively uniform phase ripple. The control system includes a zero crossing detector and variable ramp generator for generating control signals to a switching rectifier to generate a regulated DC signal.

Claims

1. A generator comprising:

a stator, wherein an outer peripheral surface of the stator is axially crenellated with a predetermined number of teeth and slots;

an output terminal electrically coupled to a fusible link;

an electrically conductive phase ring coupled to the fusible link; and

a pole phase coil conductor, electrically coupled to the phase ring and to a winding of insulated wiring disposed around at least one of the teeth of the stator.

2. The generator as disclosed in claim 1, further comprising:

a second and third output terminal respectively electrically coupled to a second and third fusible link;

a second and third electrically conductive phase ring respectively coupled to the second and third fusible links; and

a second and third pole phase coil conductor, respectively electrically coupled to the second and third phase rings and to a second and third windings of insulated wiring respectively disposed around teeth of the stator.

3. The generator as disclosed in claim 2, wherein the winding, the second winding, and the third winding are electrically coupled in one of a wye configuration and a delta configuration.

4. The generator as disclosed in claim 3, wherein the electrical wye coupling is exposed to a cooling fluid.

5. The generator as disclosed in claim 3, wherein the electrical delta coupling is exposed to a cooling fluid.

6. The generator as disclosed in claim 2, wherein the phase ring, the second phase ring, and the third phase ring are exposed to a cooling fluid.

7. The generator as disclosed in claim 1, wherein a pole phase coil conductor is disposed to as to exit the stator in a direction substantially orthogonal from a face surface of the stator.

8. The generator as disclosed in claim 1, wherein:

the winding of insulated wiring comprises at least two turns of windings disposed around the at least one tooth of the stator; and

the insulated wiring is selected from a predetermined gauge, wherein an internal short circuit within the winding between two or more turns in the winding produces sufficient heat to melt the wiring and clear the internal short.

9. A generator comprising:

a plurality of output terminals respectively electrically coupled to a plurality of fusible links;

a plurality of electrically conductive phase rings respectively coupled to the plurality of fusible links; and

a plurality of pole phase coil conductors, respectively electrically coupled to the plurality of phase rings, and respectively electrically coupled to a plurality of windings of insulated wiring respectively disposed around a plurality of teeth of the stator.

10. The generator as disclosed in claim 9, wherein a cooling fluid is exposed to at least one of:

the plurality of output terminals;

the plurality of fusible links;

the plurality of electrically conductive phase rings;

the plurality of pole phase coil conductors, and

the plurality of windings of insulated wiring.

11. The generator as disclosed in claim 9, wherein the plurality of windings are electrically coupled in one of a wye configuration and a delta configuration.

12. The generator as disclosed in claim 11, wherein the electrical wye coupling is exposed to a cooling fluid.

13. The generator as disclosed in claim 11, wherein the electrical delta coupling is exposed to a cooling fluid.

14. The generator as disclosed in claim 9, wherein a pole phase coil conductors are disposed to as to exit the stator in a direction substantially orthogonal from a face surface of the stator.

15. The generator as disclosed in claim 9, wherein:

the plurality of windings of insulated wiring respectively comprise at least two turns of windings disposed around at least one tooth of the plurality of teeth of the stator; and

the insulated wiring is selected from a predetermined gauge, wherein an internal short circuit in one of the plurality of windings produces sufficient heat to melt the insulated wiring and clear the internal short circuit.

16. A generator comprising:

a first, second and third phase ring, respectively coupled to first, second, and third output terminals through respective fusible links;

a first, second, and third phase coil, each phase coil;

respectively electrically coupled to the first, second, and third phase ring through respective first, second, and third phase coil conductors; and

comprising a plurality of windings of insulated wiring respectively disposed around a plurality of teeth of a stator; and

wherein the first, second, and third phase coils are disposed about the plurality of the teeth of the stator so as to produce electrical current in three predetermined phases.

17. The generator as disclosed in claim 16, wherein a cooling fluid is exposed to at least one of:

the first, second and third phase rings;

the first, second, and third output terminals;

the first, second, and third phase coils; and

the first, second, and third phase coil conductors, and

the plurality of windings of insulated wiring.

18. The generator as disclosed in claim 16, wherein the first, second, and third phase coil conductors are disposed to as to exit the stator in a direction substantially orthogonal from a face surface of the stator.

19. The generator as disclosed in claim 16, wherein:

the winding of insulated wiring comprises at least two turns of windings disposed around the at least one tooth of the stator; and

the insulated wiring is selected from a predetermined gauge, wherein an internal short circuit within the winding between two or more turns in the winding produces sufficient heat to melt the wiring and clear the internal short.

20. The generator as disclosed in claim 16, wherein the plurality of windings are electrically coupled in one of a wye configuration and a delta configuration.