Patent ID: 11913444
Assignee: SENSIA LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  E  H | IPC E  F  H

Claim 10:
11. A method for controlling an electrical submersible pump (ESP), comprising:
generating an electrical drive signal to power the ESP using a conductor;
measuring a current of the electrical drive signal;
measuring a voltage of the electrical drive signal;
calculating a speed of a shaft of an electric motor of the ESP based on a frequency induced by rotation of the electric motor detected in the current, the electric motor comprising a stator;
determining resistance of the conductor as a function of a temperature of the conductor;
determining resistance of the stator as a function of a temperature of the electric motor; and
adjust the speed of the electric motor to account for the resistance of the conductor and the resistance of the stator.