Turbogenerator power control system

A system, comprising:

• a turbogenerator;
• a cyclic motion machine driven by an electric motor;
• a load inverter connected to said turbogenerator to deliver power to said motor;
• and
• a controller controlling said turbogenerator and said inverter to vary the frequency of said inverter in accordance with a variable frequency time profile for said electric motor based on historical machine cycle position and corresponding inverter frequency data to provide a substantially constant power level to said electric motor, wherein said variable frequency time profile is established by four control loops, one control loop providing a temperature safety limit, one control loop providing a speed safety limit, one control loop providing a power variation minimizing control based on instantaneous data and one control loop providing power variation minimizing control based on said historical data.

A system, comprising:

• a turbogenerator;
• a plurality of cyclic motion machines each driven by an electric motor;
• a load inverter connected to said turbogenerator to deliver power to each of said motors;
• and
• a controller controlling said turbogenerator and said inverter to vary the frequency of said load inverter in accordance with a variable frequency time profile for said electric motor of each of said plurality of machines based on historical machine cycle position and corresponding inverter frequency data for each of said plurality of machines to provide a substantially constant total power level to said motors.

A system, comprising:

• a turbogenerator;
• a plurality of cyclic motion machines each driven by an electric motor;
• a load inverter connected to said turbogenerator to deliver power to said motor;
• and
• a controller controlling said turbogenerator and said inverter to vary the frequency of said load inverter in accordance with a variable frequency time profile for said electric motor of each of said plurality of machines based on historical machine cycle position and corresponding inverter frequency data for each of said plurality of machines to provide a substantially constant total power level to said motors, wherein said variable frequency time profile is established by four control loops, one control loop providing a temperature safety limit, one control loop providing a speed safety limit, one control loop providing a power variation minimizing control based on instantaneous data and one control loop providing power variation minimizing control based on said historical data.

A system, comprising:

• a turbogenerator including a permanent magnet generator/motor, a compressor, and a gas turbine having a combustor;
• at least one pump-jack oil well driven by an electric induction motor;
• a load inverter connected to said turbogenerator to deliver power to said motor;
• and
• a controller controlling said turbogenerator and said inverter to vary the frequency of said load inverter in accordance with a variable frequency time profile for said electric induction motor of said pump-jack oil well based on historical pump-jack oil well cycle position and corresponding inverter frequency data to provide a substantially constant power level to said motor.

A system, comprising:

• a turbogenerator including a permanent magnet generator/motor, a compressor, and a gas turbine having a combustor;
• at least one pump-jack oil well driven by an electric induction motor;
• a load inverter connected to said turbogenerator to deliver power to said motor;
• and
• a controller controlling said turbogenerator and said inverter to vary the frequency of said load inverter in accordance with a variable frequency time profile for said electric induction motor of said pump-jack oil well based on historical pump-jack oil well cycle position and corresponding inverter frequency data to provide a substantially constant power level to said motor, wherein said controller includes a plurality of primary control loops.

A system, comprising:

• a turbogenerator including a permanent magnet generator/motor, a compressor, and a gas turbine having a combustor;
• at least one pump-jack oil well driven by an electric induction motor;
• a load inverter connected to said turbogenerator to deliver power to said motor;
• and
• a controller controlling said turbogenerator and said inverter to vary the frequency of said load inverter in accordance with a variable frequency time profile for said electric induction motor of said pump-jack oil well based on historical pump-jack oil well cycle position and corresponding inverter frequency data to provide a substantially constant power level to said motor;
• a high frequency inverter synchronously connected to said turbogenerator;
• a direct current bus electrically connecting said high frequency inverter with said load inverter;
• and
• a processor to control the frequency and voltage/current of said high frequency inverter and said load inverter.

A system, comprising:

• a turbogenerator including a permanent magnet generator/motor, a compressor, and a gas turbine having a combustor;
• a plurality of pump-jack oil wells each driven by an electric induction motor;
• a load inverter connected to said generator to deliver power to said induction motors;
• and
• a controller controlling said turbogenerator and said inverter to establish a variable frequency time profile for each said electric induction motor of each said plurality of pump-jack oil wells, said controller utilizing pump-jack oil well cycle position data and historical data on the variable frequency versus pump-jack oil well cycle position profile of each of said plurality of pump-jack oil wells to provide a substantially constant total power level to said induction motors.

A system, comprising:

• a turbogenerator including a permanent magnet generator/motor, a compressor, and a gas turbine having a combustor;
• a plurality of pump-jack oil wells each driven by an electric induction motor;
• a load inverter connected to said generator to deliver power to said induction motors;
• and
• a controller controlling said turbogenerator and said inverter to establish a variable frequency time profile for each said electric induction motor of each said plurality of pump-jack oil wells, said controller utilizing pump-jack oil well cycle position data and historical data on the variable frequency versus pump-jack oil well cycle position profile of each of said plurality of pump-jack oil wells to provide a substantially constant total power level to said induction motors, wherein said variable frequency time profile is established by four control loops, one control loop providing a temperature safety limit, one control loop providing a speed safety limit, one control loop providing a power variation minimizing control based on instantaneous data and one control loop providing power variation minimizing control based on historical data.

A method of controlling a system including a turbogenerator and a cyclic motion machine driven by an electric motor, comprising:

• providing electrical power from said turbogenerator to said electric motor of said cyclic motion machine;
• controlling said turbogenerator and said cyclic motion machine to establish a variable frequency time profile for said electric motor of said cyclic motion machine;
• and
• utilizing cyclic motion machine cycle position data and historical data on the variable frequency versus cyclic motion machine cycle position profile to provide a substantially constant power level to said electric motor during repetitive cyclic motion cycles.

A method of controlling a system including a turbogenerator and a cyclic motion machine driven by an electric motor, comprising:

• providing electrical power from said turbogenerator to said electric motor of said cyclic motion machine;
• controlling said turbogenerator and said cyclic motion machine to establish a variable frequency time profile for said electric motor of said cyclic motion machine;
• and
• utilizing instantaneous data on power and historical data on power to provide a substantially constant power level requirement for said turbogenerator during current repetitive cyclic motion cycles.

A method of controlling a system including a turbogenerator and a plurality of cyclic motion machines each driven by an electric motor, comprising:

• providing electrical power from said turbogenerator to said electric motor of each of said plurality of cyclic motion machines through a load inverter connected to each said electric motor;
• controlling said turbogenerator and said inverter to establish a variable frequency time profile for said electric motor of each of said plurality of cyclic motion machines;
• and
• utilizing cyclic motion machine cycle position data and historical data on the variable frequency versus cyclic motion machine cycle position profile to provide a substantially constant total power level to said electric motors during current repetitive cyclic motion cycles.

A method of controlling a system including a turbogenerator and a plurality of cyclic motion machines each driven by an electric motor, comprising:

• providing electrical power from said turbogenerator to said electric motor of each of said plurality of cyclic motion machines through a load inverter connected to each said electric motor;
• controlling said turbogenerator and said inverter to establish a variable frequency time profile for said electric motor of each of said plurality of cyclic motion machines, said variable frequency time profile being established by four control loops, one control loop providing a temperature safety limit, one control loop providing a speed safety limit, one control loop providing a power variation minimizing control based on instantaneous data and one control loop providing power variation minimizing control based on historical data;
• and
• utilizing cyclic motion machine cycle position data and historical data on the variable frequency versus cyclic motion machine cycle position profile to provide a substantially constant total power level to said electric motors during current repetitive cyclic motion cycles.

A method to reduce variations in the power level provided to a cyclic motion machine having cyclically varying power requirements, comprising:

• connecting an induction motor to the cyclic motion machine to drive the machine;
• connecting a load inverter to the motor to provide power to the motor;
• monitoring the inverter frequency at a preselected number of machine positions during a machine cycle for a predetermined number of machine cycles to accumulate historical data;
• and
• varying the load inverter frequency over each machine cycle in accordance with the historical data to reduce variations in the power level required by the motor.

A method to reduce variations in the total power level provided to a plurality of cyclic motion machines having cyclically varying power requirements, comprising:

• connecting an induction motor to each cyclic motion machine to drive the respective machine;
• connecting a load inverter to the motors to provide power to the motors;
• monitoring the inverter frequency at a preselected number of machine positions during a machine cycle for each machine over a predetermined number of machine cycles to accumulate historical data;
• and
• varying the load inverter frequency during the machines' cycles in accordance with the historical data to reduce variations in the total power level required by the motors.