Pulse error processing method of excitation system

Abstract

The invention discloses a pulse error processing method of an excitation system. Each branch circuit of each power rectification unit in the excitation system adopts an independent pulse loop, n powerrectification units connected in parallel are regarded as n + A branch circuits, n + B branch circuits, n + C branch circuits, n -A branch circuits, n -B branch circuits and n -C branch circuits to operate in parallel on the control logic, and the total number of the branch circuits is 6 * n. An excitation adjusting device monitors the state of the trigger pulse of each phase branch of all the power rectification units which operate in parallel, when the pulse signal is lost, the corresponding pulse error signal is sent out, the branch pulse corresponding to the pulse error is cut off, and the excitation system does not need to be cut off as long as the lowest operation of the unit is met, so that the redundancy fault tolerance degree of the excitation system is improved, and the operation stability and reliability of the generator are further improved.

Description

technical field [0001] The invention discloses a pulse error processing method of an excitation system, which belongs to the technical field of generator excitation systems. Background technique [0002] In the current conventional static excitation system, the excitation adjustment device samples the synchronous signal of the excitation power supply, and based on the synchronous signal, a trigger pulse signal is sent to control the operation of the power rectifier unit, and the output voltage of the power rectifier unit is changed to adjust the generator excitation current to meet the requirements of the unit. need to run. [0003] During the operation of the excitation system, the pulse module controlled by the excitation adjustment device will read back and judge the sent pulse signal. When the pulse signal is lost or the deviation between the readback angle and the sent angle is too large, a corresponding pulse error signal will be issued. , and perform corresponding er...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of imperfect pulse error processing mechanism in the existing excitation system, the present invention provides a pulse error processing method for the excitation system, in which the excitation adjustment device monitors the triggering of each phase branch of all power rectification units running in parallel The state of the pulse, when the pulse signal is lost, the corresponding pulse error signal is issued and the branch pulse corresponding to the pulse error is cut off. As long as the minimum operation of the unit is met, the excitation system does not need to be cut off, which improves the redundancy and fault tolerance of the excitation system. Improve the stability and reliability of generator operation

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