Patent ID: 9735719
Date: 2017-08-15
CPC Classifications: H02J,H02P

Claim:
1. A system comprising: a control device for controlling respective field voltages of field windings of at least two generators connected to a grid system via a busbar, for measuring an electric quantity of the at least two generators; and a static exciter system, wherein the control device drives the static exciter system which is assigned to each generator for production of a DC voltage in the field winding of a generator rotor, the static exciter system being connected to the field winding and together with the field winding forming an exciter circuit for emission of electrical energy by increasing the field voltage of the field winding in case of a grid system fault or grid system voltage drop; wherein the grid system and the busbar are part of a wide area measurement system; and wherein the system further comprises a calculation unit that feeds signals to the control device, and wherein the control device is configured to increase the field voltages of one or more of the at least two generators which accelerate with respect to a comparative value calculated by the calculation unit and the control device is configured to not increase the field voltages of others of the at least two generators which decelerate with respect to the comparative value calculated by the calculation unit.