Measuring device for excitation current of brushless excitation generator

Abstract

The invention discloses a measuring device for an excitation current of a brushless excitation generator. The measuring device comprises a measuring module which is arranged in a rotor of the brushless excitation generator and keeps synchronous rotation with the rotor. The measuring module comprises a power supply unit, a sampling unit, a measuring operating unit and a data sending unit, wherein the sampling unit is used for measuring the excitation current; the measuring calculating unit is in communication connection with the sampling unit and is used for conducting operating through data measured by the sampling unit; the data sending unit is in communication connection with the measuring operating unit and is used for sending and unloading operated results of the measuring operating unit; and the power supply unit is connected with the sampling unit, the measuring operating unit and the data sending unit. According to the measuring device for the excitation current of the brushlessexcitation generator, the excitation current of the generator can be accurately measured in real time, the problem of poor precision of a traditional excitation current estimation method is avoided,meanwhile, the measuring device can further judge an excitation fault in time by reflecting the current change in real time, thus technicians are assisted in removing a generator fault in time, and normal work of the generator is guaranteed.

Description

technical field [0001] The invention relates to the technical field of power equipment, in particular to a measuring device for the excitation current of a brushless excitation generator. Background technique [0002] The rotor of the generator is in a state of high-speed rotation during the power generation process. The excitation current of the brush-excited generator is supplied by the excitation system through the carbon brush, which can be measured in the excitation system, while the excitation current of the brushless excitation generator is operated at high speed by the State exciter supply, because the whole excitation system is in a rotating state, the traditional method cannot accurately measure its real excitation current, it can only be estimated, so the accuracy is poor, and it cannot reflect the current change when the excitation fault occurs. [0003] Therefore, the prior art has yet to be further developed. Contents of the invention [0004] In view of the...

AI Technical Summary

Problems solved by technology

[0004] In view of the above technical problems, the embodiment of the present invention provides a measuring device for the excitation current of a brushless excitation generator, so as to solve the problem of poor measurement accuracy of the excitation current of the current brushless excitation generator

Images