Patent ID: 11939828
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC E  F  H | IPC E  F  H

Claim 14:
15. An electric driven hydraulic fracking system that pumps a fracking media into a fracking well to execute a fracking operation to extract a fluid from the fracking well, comprises:
a plurality of VFD configurations with each VFD configuration including a plurality of VFD cells with each VFD cell isolated from each other VFD cell that is configured to:
segment by each VFD configuration an AC voltage signal that is associated with electric power at a power generation voltage level by a power generation system into a plurality of partitions to convert the AC voltage signal associated with the electric power at the power generation voltage level to a VFD signal at a VFD voltage level based on the isolation of each VFD cell for each corresponding VFD configuration, wherein the VFD voltage level is a voltage level that is required to drive a corresponding electric motor from a plurality of electric motors to control a corresponding hydraulic pump from a plurality of hydraulic pumps, and

reconnect each partition into a configuration that generates the VFD voltage signal at the VFD voltage level based on the isolation of each VFD cell for each corresponding VFD configuration to drive each corresponding electric motor to control an operation of each corresponding electric motor and each corresponding hydraulic pump with a decrease in a level of harmonics included in a VFD current waveform of the VFD voltage signal at the VFD voltage level for each corresponding VFD configuration.