The system and method described herein provide grid-forming control of a power generating asset having a generator, such as a double-fed generator, connected to a power grid. Accordingly, a stator-frequency error is determined for the generator. The components of the stator frequency error are identified as a damping component corresponding to a tower damping frequency and a stator component. Based on the stator component, a power output requirement for the generator is determined. This power output requirement is combined with the damping power command to develop a consolidated power requirement for the generator. Based on the consolidated power requirement, at least one control command for the generator is determined and an operating state of the generator is altered.

A hybrid power-generator system includes an engine, an electric generator, first and second rectifiers, first and second DC-DC voltage converters, a DC bus, an inverter, and one or more controllers. The system provides a unique method of joining two power sources such that the relative proportion utilized can be changed to any value seamlessly, such as to avoid daily and/or seasonal variations in utility charges. Since the AC output portion of the circuit is independent of the utility grid, power can be supplied at variable frequencies to motor loads with significant positive impacts in load efficiency. Power increases required by the load(s) that occur rapidly can utilize the electrical grid to assist for the brief transient, allowing the engine, which is maintained at a fixed and wide-open-throttle position, to continue operation and in a more gradual process to resume its blend target for power generation.

A hybrid power-generator system includes an engine, an electric generator, first and second rectifiers, first and second DC-DC voltage converters, a DC bus, an inverter, and one or more controllers. The system provides a unique method of joining two power sources such that the relative proportion utilized can be changed to any value seamlessly, such as to avoid daily and/or seasonal variations in utility charges. Since the AC output portion of the circuit is independent of the utility grid, power can be supplied at variable frequencies to motor loads with significant positive impacts in load efficiency. Power increases required by the load(s) that occur rapidly can utilize the electrical grid to assist for the brief transient, allowing the engine, which is maintained at a fixed and wide-open-throttle position, to continue operation and in a more gradual process to resume its blend target for power generation.

The present disclosure is directed to turbine engines and systems for active stability control of rotating compression systems utilizing an electric machine operatively coupled thereto. In one exemplary aspect, an electric machine operatively coupled with a compression system, e.g., via a shaft system, is controlled to provide shaft damping for instability fluctuations of the pressurized fluid stream within the compression system. Based on control data indicative of a system state of the compression system, a control parameter of the electric machine is adjusted to control or change an output of the shaft system. Adjusting the shaft system output by adjusting one or more control parameters of the electric machine allows the compression system to dampen instability fluctuations of the fluid stream within the compression system. A method for active stability control of a compression system operatively coupled with an electric machine via a shaft system is also provided.

The present disclosure is directed to turbine engines and systems for active stability control of rotating compression systems utilizing an electric machine operatively coupled thereto. In one exemplary aspect, an electric machine operatively coupled with a compression system, e.g., via a shaft system, is controlled to provide shaft damping for instability fluctuations of the pressurized fluid stream within the compression system. Based on control data indicative of a system state of the compression system, a control parameter of the electric machine is adjusted to control or change an output of the shaft system. Adjusting the shaft system output by adjusting one or more control parameters of the electric machine allows the compression system to dampen instability fluctuations of the fluid stream within the compression system. A method for active stability control of a compression system operatively coupled with an electric machine via a shaft system is also provided.

A voltage regulator for a generator having a dynamic voltage-to-frequency (V/F) ratio includes a memory, a voltage calculator, and a selection module. The memory is configured to store a plurality of voltage-frequency curves for the generator. The voltage calculator is configured to receive data indicative of an output of the generator and configured to determine a resistance value from the output of the generator and a voltage value from the output of the generator. The selection module configured to select a voltage-frequency curve from the plurality of voltage-frequency curves in response to the resistance value and configured to select a voltage-frequency ratio from the selected voltage-frequency curve in response to the voltage value. An output adjustment for the generator is determined in response to the selected voltage-frequency ratio.

A voltage regulator for a generator having a dynamic voltage-to-frequency (V/F) ratio includes a memory, a voltage calculator, and a selection module. The memory is configured to store a plurality of voltage-frequency curves for the generator. The voltage calculator is configured to receive data indicative of an output of the generator and configured to determine a resistance value from the output of the generator and a voltage value from the output of the generator. The selection module configured to select a voltage-frequency curve from the plurality of voltage-frequency curves in response to the resistance value and configured to select a voltage-frequency ratio from the selected voltage-frequency curve in response to the voltage value. An output adjustment for the generator is determined in response to the selected voltage-frequency ratio.

Provided is a control device for a motor generator, which enables suppression of a temperature rise of a motor generator. The control device includes a storage unit, a first acquisition unit, a second acquisition unit, and a control unit. The storage unit stores a plurality of control maps for controlling a motor generator. The first acquisition unit acquires first temperature information being information about a temperature of a power converter. The second acquisition unit acquires second temperature information being information about a temperature of a rotating electric machine. The control unit controls the power converter with reference to the plurality of control maps. Each of the control maps contains data including a field current command value. The control unit selects a control map to be referred to from the plurality of control maps based on the first temperature information and the second temperature information.

Provided is a control device for a motor generator, which enables suppression of a temperature rise of a motor generator. The control device includes a storage unit, a first acquisition unit, a second acquisition unit, and a control unit. The storage unit stores a plurality of control maps for controlling a motor generator. The first acquisition unit acquires first temperature information being information about a temperature of a power converter. The second acquisition unit acquires second temperature information being information about a temperature of a rotating electric machine. The control unit controls the power converter with reference to the plurality of control maps. Each of the control maps contains data including a field current command value. The control unit selects a control map to be referred to from the plurality of control maps based on the first temperature information and the second temperature information.

The present disclosure relates to a power generator and method of generating AC or DC power, including the removal of reverse torque and utilizing the electromagnetic coils of a generator stator to harvest the inherent energy available in the magnetic domains of ferromagnetic and paramagnetic materials of pole pieces of a generator rotor. The method comprises: determining an excitation cycle based on a target frequency of the power generator; executing the excitation cycle by providing a current to one or more wires of the generator according to a predefined sequence to align magnetic domains of the salient pole pieces of the generator rotor to produce an evolving magnetic flux field; and routing a resultant current, generated by the magnetic flux field, to a power output. Systems and apparatuses disclosed herein comprise means for carrying out the same.