Microcomputer silicon-controlled static exciting system

A static excitation, microcomputer technology, applied in the control system, frequency and voltage control of generators, control of generators, etc., can solve problems such as complex circuits, reduced reliability, and difficult maintenance

Inactive Publication Date: 2007-02-14
SICHUAN DONGFENG ELECTRIC MACHINARY WORKS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All the functions of the traditional analog excitation regulator are implemented by hardware, the more functions are required, the more components, solder joints and connectors are used, the more complicated the circuit, the lower the reliability and the difficulty of maintenance
In addition, it is difficult for the analog excitation regulator to flexibly realize the optimal operation

Method used

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  • Microcomputer silicon-controlled static exciting system
  • Microcomputer silicon-controlled static exciting system

Examples

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Embodiment Construction

[0020] Such as figure 1 , microcomputer thyristor static excitation system, including parameter input circuit, microcomputer excitation regulator and rectifier bridge circuit SCR, generator parameters are input into microcomputer excitation regulator through parameter input circuit, and after the microcomputer excitation regulator processes the input parameters, it outputs The pulse control signal is sent to the rectifier bridge circuit SCR, and the output voltage of the rectifier bridge circuit SCR controls the machine terminal voltage of the generator; the microcomputer excitation regulator outputs a relay control signal to control the switch on and off of the excitation device.

[0021] Generator parameters include machine terminal voltage, grid voltage, power factor, frequency signal, active signal, reactive signal, excitation voltage, excitation current, and the parameter input circuit is connected to the end of the synchronous generator power output line close to the gene...

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Abstract

This invention discloses a static excitation system of a microprocessor thyristor including a parameter input circuit, a microprocessor excitation adjuster and a rectifying bridge circuit SCR, in which, after parameters of a generator are input into a microprocessor excitation adjuster and processed via the parameter input circuit, the computed pulse control signal is output to the SCR to control the on-off of the thyristor and adjust the output voltage of SCR so as to control the end voltage of the generator, besides, the control signal of the relay computed by the adjuster controls the startup and demagnetization to realize the limit and protection functions of the excitation device.

Description

technical field [0001] The invention belongs to the thyristor static excitation system of a synchronous generator, in particular to the static excitation system of a synchronous generator with a microcomputer as the core control component. Background technique [0002] With the continuous increase of the single unit capacity of synchronous generators and the continuous increase of long-distance transmission lines, the stability of the power system is becoming more and more important. In order to ensure the reliable operation of the synchronous generator, the requirements for the excitation regulation system are more stringent. For example, it is required to be highly reliable in operation, have excellent technical and economic performance indicators, and be able to complete some special control functions. All the functions of the traditional analog excitation regulator are realized by hardware. The more functions are required, the more components, solder joints and connecto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/00H02P9/14H02P9/44H02H7/06
Inventor 冯安彭加荣邓继建
Owner SICHUAN DONGFENG ELECTRIC MACHINARY WORKS CO LTD
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