Patent ID: 9356544
Filing Date: 2016-05-31
CPC Classification: H02J,H02P,Y02E

Claim Text:
1. A method for eliminating electrical malfunctions in a network with a control device, the method comprising: receiving with a controller of the control device at least one first input signal which is formed from a power signal that is generated from information obtained at an electric motor with a device for power determination, receiving with the controller at least one additional input signal comprising mechanical information derived from the electric motor, wherein the mechanical information relates to at least one of a rotation speed and a rotor angle of the electric motor, removing high-frequency components in the at least one first input signal by high-pass filtering, forming from the at least one additional input signal relating to the rotation speed through integration a mechanical rotor angle, multiplying auxiliary signals formed from sine and cosine values of the mechanical rotor angle and its multiples with the at least one high-pass-filtered first input signal, integrating the multiplied auxiliary signals and multiplying the integrated multiplied auxiliary signals again with the auxiliary signals to form additional torque portions, forming from the additional torque portions an additional torque target value, generating with the controller from the additional torque target value at least one output signal of the control device, superimposing a negative value of the additional torque target value onto a target torque to generate an overall target torque, and supplying the overall target torque to a converter control system of a converter that is connected to a network and powers the electric motor.