A system includes a generator control unit (GCU). The GCU includes a first rectifier and a second rectifier. Each of the first rectifier and the second rectifier has a separate input to receive AC power from a separate respective permanent magnet generator (PMG). A method includes supplying AC power from a first PMG of a variable frequency generator (VFG) to a first rectifier of a generator control unit GCU that is operatively connected to control the VFG. The method includes supplying AC power from a second PMG to a second rectifier of the GCU. The first PMG supplies a lower AC voltage to the first rectifier than the second PMG supplies to the second rectifier.

A system includes a generator using a fluid mixture obtained via a generator inlet, a compressor having a compressor inlet that is connected to a generator outlet by a first set of conduits, a second set of conduits connected to the compressor outlet and the generator inlet, and a sensor in communication with the second set of conduits, where a portion of the fluid mixture includes gas from a hydrocarbon well, and where exhaust fluid of the generator is provided to the compressor. A process includes obtaining a target fluid property and a fluid measurement using the sensor and modifying a parameter of a fluid control device to modify a first flow rate of the flow of the exhaust fluid through the second set of conduits relative to a second flow rate of the flow of the gas provided by the hydrocarbon well through the first set of conduits.

A system includes a generator using a fluid mixture obtained via a generator inlet, a compressor having a compressor inlet that is connected to a generator outlet by a first set of conduits, a second set of conduits connected to the compressor outlet and the generator inlet, and a sensor in communication with the second set of conduits, where a portion of the fluid mixture includes gas from a hydrocarbon well, and where exhaust fluid of the generator is provided to the compressor. A process includes obtaining a target fluid property and a fluid measurement using the sensor and modifying a parameter of a fluid control device to modify a first flow rate of the flow of the exhaust fluid through the second set of conduits relative to a second flow rate of the flow of the gas provided by the hydrocarbon well through the first set of conduits.

The disclosure relates to an autonomous device for tracking the usage time of a generator set, capable of providing an operating time of the generator set. The module includes at least one first sensor (101) capable of measuring a first parameter representing a state of operation of said generator set (9), a data processor furnishing the characteristic information for an operating time, as a function of the first parameter, storage of the characteristic information for an operating time, and a transmitter capable of transmitting the characteristic information for an operating time to a terminal or an external server.

The disclosure relates to an autonomous device for tracking the usage time of a generator set, capable of providing an operating time of the generator set. The module includes at least one first sensor (101) capable of measuring a first parameter representing a state of operation of said generator set (9), a data processor furnishing the characteristic information for an operating time, as a function of the first parameter, storage of the characteristic information for an operating time, and a transmitter capable of transmitting the characteristic information for an operating time to a terminal or an external server.

A system for and a method of frequency control of a variable-speed wind power generator are proposed. According to an implementation example of the present technology, there is an advantage in which the present technology may be involved in a frequency control of the system, thereby stabilizing the frequency of the system by controlling the frequency of the variable-speed wind power generator on the basis of a gain being varied according to a speed of a rotor.

A system for and a method of frequency control of a variable-speed wind power generator are proposed. According to an implementation example of the present technology, there is an advantage in which the present technology may be involved in a frequency control of the system, thereby stabilizing the frequency of the system by controlling the frequency of the variable-speed wind power generator on the basis of a gain being varied according to a speed of a rotor.

A method of transmitting reactive power between at least one wind turbine and a power system through a transformer connected between the at least one wind turbine and the power system, the wind turbine including a power converter. The method includes a second step of connecting at least one passive device to the transformer and reducing or increasing a reactive power of the power converter of an amount corresponding to the reactive contribution from the passive device.

A method of transmitting reactive power between at least one wind turbine and a power system through a transformer connected between the at least one wind turbine and the power system, the wind turbine including a power converter. The method includes a second step of connecting at least one passive device to the transformer and reducing or increasing a reactive power of the power converter of an amount corresponding to the reactive contribution from the passive device.

An apparatus comprising a signal transformer coupled to a power line and a signal transmission, reception, or detection circuit. A sensor is configured to be responsive to the power line current or magnetic flux generated in a ferrite core of the signal transformer. When the sensor indicates that the flux generated by the power line current mat cause an attenuation of the signal strength, a second circuit generates a current through a flux cancelling winding that cancels at least some of the flux generated by the power line current.