A Pulse Error Handling Method of Excitation System

Abstract

The invention discloses a pulse error processing method of an excitation system. Each branch of each power rectification unit in the excitation system adopts an independent pulse circuit, and n parallel-connected power rectification units are regarded as n in control logic +A branch, n+B branch, n+C branch, n-A branch, n-B branch, n-C branch run in parallel, a total of 6*n branches. The excitation regulating device monitors the state of the trigger pulse of each phase branch of all power rectification units running in parallel. 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 it meets the requirements of the unit. The minimum operation does not need to cut off the excitation system, which improves the redundancy and fault tolerance of the excitation system, thereby improving the stability and reliability of the generator operation.

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, sends out a trigger pulse signal to control the operation of the power rectifier unit based on the synchronous signal, and changes the output voltage of the power rectifier unit to adjust the excitation current of the generator to meet the needs of the unit. running needs. [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 read back angle and the sending 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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