System for steering a drill string

1. A downhole tool string component, comprising:

a first rotor secured within a bore of the component and connected to a gear assembly;

the gear assembly being connected to a second rotor;

the gear assembly comprising a gear ratio adapted to rotate the second rotor faster than the first rotor;

the second rotor being in magnetic communication with a stator which comprises an electrically conductive coil; and

the electrically conductive coil being in communication with a load.

2. The component of claim 1 , wherein the first rotor is a part of a turbine or motor.

3. The component of claim 1 , wherein the first rotor is connected to a steering system.

4. The component of claim 3 , wherein the steering system comprises a jack element which extends from the bore into a subterranean formation.

5. The component of claim 4 , wherein the jack element is attached to the first rotor through a second gear assembly.

6. The component of claim 5 , wherein the jack element rotates opposite of the first rotor.

7. The component of claim 3 , wherein the jack element comprises an asymmetric distal end adapted to contact the subterranean formation.

8. The component of claim 1 , wherein the second rotor is part of an electric generator.

9. The component of claim 1 , wherein the second rotor comprises magnets made of samarium cobalt.

10. The component of claim 1 , wherein the electrically conductive coil comprises from 1.5 to 10 windings.

11. The component of claim 1 , wherein the gear assembly is a planetary gear system.

12. The component of claim 1 , wherein the rotational speed of the second rotor is from 1.5 to 8 times faster than the rotational speed of the first rotor.

13. The component of claim 1 , wherein logic in communication with the load is adapted to turn the load on and off.

14. The component of claim 13 , wherein the logic is in communication with an AC switch in communication with the load.

15. The component of claim 14 , wherein the AC switch is an insulated gate bipolar transistor or a triac.

16. The component of claim 13 , wherein the logic is in communication with a DC switch.

17. The component of claim 1 , wherein the load is connected to a rectifier circuit.

18. The component of claim 1 , wherein the load is in communication with a downhole telemetry system.

19. The component of claim 1 , wherein the load is a resistor, nichrome wires, coiled wires, electronics, or combinations thereof.

20. The component of claim 1 , wherein the load is adapted to turn on and off at a rate at least as fast as the rotational speed of the second rotor.

21. The component of claim 1 , wherein the component comprises a jack element which extends from the bore into a subterranean formation.

22. The component of claim 21 , wherein the jack element is attached to the first rotor through a second gear assembly.

23. The component of claim 22 , wherein the jack element rotates opposite of the first rotor.

24. The component of claim 1 , wherein a sensor disposed within the component measures the orientation of the second rotor with respect to the component.

25. The component of claim 1 , wherein a sensor secured to the component measures the orientation of the component with respect to a subterranean formation.

26. A method for controlling the rotational speed of a rotor in a downhole component, comprising:

providing a first rotor secured within a bore of the component and connected to a gear assembly;

providing a second rotor also connected to the gear assembly, the gear assembly comprising a gear ratio adapted to rotate the second rotor faster than the first rotor;

providing a stator in magnetic communication with the second rotor and comprising an electrically conductive coil;

rotating the first rotor by passing fluid over an impeller attached to the first rotor; and

controlling the rotational speed of the first rotor by applying a load to the electrically conductive coil.