A Realization Method of Downloading Excitation Control Program Online Without Shutdown

Abstract

An implementation method of downloading the excitation control program online without stopping the machine. Two excitation regulators A and B are set, and the two excitation regulators are hot standby for each other. On the excitation regulator A that needs to update the control program, the excitation regulator The jumper position on the A circuit board is set as the program writing position, so that it can allow the program to be written; use the switching microprocessor chip to specifically execute the instruction block, so that the backup excitation regulator B is used to control the normal operation of the excitation system; boot Download the program to the main CPU chip of the excitation regulator A, and download and update the excitation control program as needed. After the program is downloaded, restore the jumper position, and then switch to the A regulator to run. It is the first time to realize the online download program of the microcomputer excitation regulator, which can realize the online replacement and modification of the regulation control program during the normal power generation process of the generator without stopping or power off, which can effectively shorten the debugging time and improve the non-stop rate of the excitation equipment. Improve the economic benefits of the power station.

Description

technical field [0001] The invention belongs to the field of generator regulators, and in particular relates to a method for realizing an excitation control program downloaded online without stopping the machine. Background technique [0002] The excitation regulator of the synchronous motor is the core of the excitation system. According to the current national standard, the average forced outage rate of the excitation system should not exceed 0.2%, which puts forward very high requirements for the excitation regulator. The shorter the downtime of the excitation system, the smaller the forced removal rate and the more reliable the performance. In order to improve the reliability of the excitation controller of the synchronous motor, a multi-channel redundant design is usually adopted, but there is only one control object, which is the excitation winding of the synchronous motor. For the program writing method of the microcomputer excitation regulator, the current common pr...

AI Technical Summary

Problems solved by technology

For the program writing method of the microcomputer excitation regulator, the current common practice is to de-excite and stop the machine first, then disconnect the input and output of the excitation regulator, and then connect the regulator to update and download the program on the chip. Such a set of steps is executed It takes a long time, and the excitation outage rate increases, which directly affects the economic benefits of the power station during operation and the benefits of the connected grid

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