US 11,555,380 B2 · Downhole power generation system and method

Abstract

A downhole power generation includes a power generation module for providing power to a load. A turbine is driven by flow of a downhole fluid to rotate. A generator is coupled with the turbine for converting rotational energy from the turbine to electrical energy, and an AC-DC rectifier is coupled with the generator for converting an alternating voltage from the generator to a direct voltage. A power conversion circuit couples the AC-DC rectifier with the load. The power conversion circuit is configured for providing a first power to the load when the load is in a working mode and providing a second power to the load when the load is in a non-working mode. The second power is less than the first power. A downhole power generation method is also disclosed.

Claims18

Dependent claims

A downhole power generation system, comprising:

a power generation module for providing power to a load, comprising:
a turbine driven by flow of a downhole fluid to rotate,
a generator coupled with the turbine for converting rotational energy from the turbine to electrical energy, and
an AC-DC rectifier coupled with the generator for converting an alternating voltage from the generator to a direct voltage;
and
a power conversion circuit coupling the AC-DC rectifier with the load, the power conversion circuit including a first DC-DC converter coupled to the load by a first electrical connection and providing a first power to the load when the load is in a working mode and a second DC-DC converter coupled to the load by a second electrical connection and providing a second power to the load when the load is in a non-working mode, the second power being less than the first power.

3 more elements

Dependencies are inferred from the claim text.

Downhole power generation system and method

Life of this patent

Downhole power generation system and method

Life of this patent

Abstract

Claims18