Patent ID: 9461469
Filing Date: 2016-10-04
CPC Classification: E21B,H02J,Y02B,Y04S

Claim Text:
1. A string of downhole tools comprising: an electrical power grid electrically connecting at least a first power generating tool and a second power consuming tool in the string; and the power generating tool including a power generator, an electric load, and a power management controller, the power management controller configured to automatically selectively electrically connect and disconnect the power generating tool to and from the power grid, wherein the power management controller is configured to connect a tool bus on the power generating tool to the power grid when a DC voltage level on the tool bus is greater than a predetermined value; wherein the power management controller comprises an integrated circuit switch configured to close when the DC voltage level on the tool bus is greater than the predetermined value and open when the DC voltage level on the tool bus is less than the predetermined value; wherein the power management controller comprises an integrated circuit switch configured to repeatedly open and close at a predetermined frequency when the DC voltage level on the tool bus is greater than the predetermined value and open when the DC voltage level on the tool bus is less than the predetermined value, said repeated opening and closing operative to provide AC power to the power grid.