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US 6,644,247 B2Granted
Frequency switching systems for portable power modules
AssigneeGeneral Electric Company
InventorEdmund Campion
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AssigneeGeneral Electric Company
InventorEdmund Campion
Estimating the term…
Frequency switching systems for changing the frequency of electrical power provided by portable power modules trailerable over public roads and capable of providing at least approximately one megawatt of electrical power. In one embodiment, the portable power module includes a shipping container housing a gaseous fuel motor drivably connected to an electrical generator. The frequency switching system includes a turbocharger operatively connected to the motor and having interchangeable components that allow selecting a first or second turbocharger configuration. The selected turbocharger configuration determines the RPM of the motor, which in turn determines the frequency of the electrical power produced by the generator. In one embodiment, the first turbocharger configuration results in a motor speed of 1500 RPM and a frequency of 50 Hz, and the second turbocharger configuration results in a motor speed of 1800 RPM and a frequency of 60 Hz.
A method for changing the frequency of electrical power provided by a portable power module capable of providing at least approximately one megawatt of electrical power, the portable power module being trailerable over public roads and including a container and a gaseous fuel motor drivably connected to an electrical generator, the motor including a combustion chamber and a coolant jacket positioned adjacent to the combustion chamber to circulate liquid coolant, the portable power module further including a radiator connected in flow communication with the coolant jacket and an exhaust gas silencer connected in flow communication with the combustion chamber via an exhaust gas duct, the portable power module further including a turbocharger having a driving portion drivably coupled to a driven portion, the driven portion being connected in upstream flow communication with the combustion chamber and the driving portion being connected in downstream flow communication with the combustion chamber between the combustion chamber and the exhaust gas silencer, the method for changing the frequency of electrical power comprising:
A method for changing the frequency of electrical power provided by a portable power module, the portable power module including a motor drivably connected to an electrical generator for providing electrical power at a first frequency when driven by the motor at a first motor speed, the motor including a combustion chamber configured to receive an air/fuel mixture through an intake manifold and to discharge exhaust gases through an exhaust gas manifold, the portable power module further including a turbocharger having a first driving portion drivably connected to a driven portion, the driven portion configured to pressurize the air/fuel mixture received by the combustion chamber, the first driving portion configured to drive the driven portion by interaction with the exhaust gases discharging from the combustion chamber, the method for changing the frequency of electrical power comprising:
A method for changing the frequency of electrical power provided by a portable power module, the portable power module including a motor drivably connected to an electrical generator to operate in one-to-one correspondence, the motor including a combustion chamber configured to receive an air/fuel mixture through a turbocharger and one or more throttle valves, the position of the one or more throttle valves controlling the amount of the air/fuel mixture received by the combustion chamber, the generator providing electrical power at a first frequency when operated at a first RPM and a second frequency when operated at a second RPM, the method for changing the frequency of electrical power comprising:
A portable power module trailerable over public roads and capable of providing at least approximately one megawatt of electrical power in a normal operating configuration, the portable power module comprising:
Dependencies are inferred from the claim text.