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United States Patent

US Patent 6218813: Cross current compensation system and method

US 6218813  ·  granted 2001-04-17

Abstract

A cross current compensation system for controlling reactive currents in a generator is provided. A control system for receives voltage feedback from a first generator of a plurality of generators and cross current feedback from at least a second generator of the plurality of generators. The control system determines a phase angle based on the voltage feedback from the first generator and cross current feedback from the at least a second generator. The control system determines a compensation signal corresponding to the phase angle and cross current feedback. The control system modifying a generator excitation signal for the first generator based on the respective compensation signal and a bi-linear transformation technique.

Patent Number 6218813
Title Cross current compensation system and method
Filed 1999-09-30
Granted 2001-04-17
Inventor(s) Davis; Gerald W.
Assignee Rockwell Technologies, LLC
Number of Claims 56

Abstract

A cross current compensation system for controlling reactive currents in a generator is provided. A control system for receives voltage feedback from a first generator of a plurality of generators and cross current feedback from at least a second generator of the plurality of generators. The control system determines a phase angle based on the voltage feedback from the first generator and cross current feedback from the at least a second generator. The control system determines a compensation signal corresponding to the phase angle and cross current feedback. The control system modifying a generator excitation signal for the first generator based on the respective compensation signal and a bi-linear transformation technique.

Claim 1

A cross current compensation system for controlling reactive currents in a generator; comprising: a control system for receiving voltage feedback from a first generator of a plurality of generators and cross current feedback from at least a second generator of the plurality of generators, the control system determining a phase angle based onthe voltage feedback from the first generator and cross current feedback from the at least a second generator, the control system determining a compensation signal corresponding to the phase angle and cross current feedback, the control system modifyinga generator excitation signal for the first generator based on the respective compensation signal and a bi-linear transformation technique.

Claims

56 total

A cross current compensation system for controlling reactive currents in a generator; comprising: a control system for receiving voltage feedback from a first generator of a plurality of generators and cross current feedback from at least a second generator of the plurality of generators, the control system determining a phase angle based onthe voltage feedback from the first generator and cross current feedback from the at least a second generator, the control system determining a compensation signal corresponding to the phase angle and cross current feedback, the control system modifyinga generator excitation signal for the first generator based on the respective compensation signal and a bi-linear transformation technique.