Integrated torsional mode damping system and method
AssigneeGeneral Electric Company
InventorsChristof Martin Sihler, Joseph Song
Life of this patent
Estimating the term…
Abstract
An integrated torsional mode damping method for a current source converter, including a rectifier, an inverter, and a DC link inductor coupled between the rectifier and the inverter, includes sensing a signal representative of torque on a shaft coupled to the inverter or rectifier; using the sensed signal for detecting a presence of a torsional vibration on the shaft; and damping the torsional vibration by modulating active power through the respective inverter or rectifier.
Claims38
An integrated torsional mode damping system for modulating current in a DC link of a load commutated inverter system comprising a grid rectifier and a load inverter, the system comprising:
- a sensor configured for sensing a signal representative of torque on a load side shaft;
- and
- an inverter controller configured for using the sensed signal for detecting a presence of a torsional vibration on the load side shaft and generating inverter control signals for damping the torsional vibration by modulating active power through the load inverter.
An integrated torsional mode damping method for modulating current in a DC link of a load commutated inverter system comprising a grid rectifier and a load inverter, the system comprising:
- sensing a signal representative of torque on a load side shaft;
- using the sensed signal for detecting a presence of a torsional vibration on the load side shaft;
- damping the torsional vibration by modulating active power through the load inverter.
An integrated torsional mode damping system for a current source converter comprising a rectifier, an inverter, and a DC link inductor coupled between the rectifier and the inverter, the method comprising:
- a sensor configured for sensing a signal representative of torque on a shaft coupled to the inverter or rectifier;
- and
- a controller configured for using the sensed signal for detecting a presence of a torsional vibration on the shaft corresponding to a natural frequency of the shaft and for generating control signals for damping the torsional vibration by modulating active power through the respective inverter or rectifier.
An integrated torsional mode damping method for a current source converter comprising a rectifier, an inverter, and a DC link inductor coupled between the rectifier and the inverter, the method comprising:
- (a) sensing a signal representative of torque on a shaft coupled to the inverter or rectifier;
- (b) using the sensed signal for detecting a presence of a torsional vibration on the shaft corresponding to a natural frequency of the shaft;
- (c) damping the torsional vibration by modulating active power through the respective inverter or rectifier.
An integrated torsional mode damping system for modulating current in a DC link of a load commutated inverter system comprising a grid rectifier and a load inverter, the system comprising:
- a sensor configured for sensing a signal representative of torque on a grid side shaft;
- and
- a rectifier controller configured for using the sensed signal for detecting a presence of a torsional vibration on the grid side shaft and generating rectifier control signals for damping the torsional vibration by modulating active power through the grid rectifier.
An integrated torsional mode damping method for modulating current in a DC link of a load commutated inverter system comprising a grid rectifier and a load inverter, the method comprising:
- sensing a signal representative of torque on a grid side shaft;
- using the sensed signal for detecting a presence of a torsional vibration on the grid side shaft;
- damping the torsional vibration by modulating active power through the grid rectifier.
A system comprising:
- a load commutated converter comprising a grid rectifier, a load inverter, and a DC link inductor coupled between the rectifier and the inverter;
- a sensor configured for sensing a signal representative of torque on a shaft coupled to the inverter or rectifier;
- and
- a controller configured for using the sensed signal for detecting a presence of a torsional vibration on the shaft corresponding to a natural frequency of the shaft and for generating control signals for damping the torsional vibration by modulating active power through the respective inverter or rectifier.
Dependencies are inferred from the claim text.