Automatic adjusting method for a top gas pressure recovery turbine (TRT) excitation system before grid connection

The invention discloses an automatic adjusting method for a top gas pressure recovery turbine (TRT) excitation system before grid connection. An excitation control system AVR is arranged between a TRT motor and a programmable logic controller (PLC) or a distributed control system (DCS); the on/off o...

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Bibliographische Detailangaben
Hauptverfasser:	ZHAI TIANKUI, ZHOU NING, LI YONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERATION MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING
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Beschreibung
Zusammenfassung:	The invention discloses an automatic adjusting method for a top gas pressure recovery turbine (TRT) excitation system before grid connection. An excitation control system AVR is arranged between a TRT motor and a programmable logic controller (PLC) or a distributed control system (DCS); the on/off of a relay is controlled by a signal transmitted by the PLC or the DCS, and an excitation adjusting and controlling signal is transmitted to the excitation control system AVR; inner programming and logic linking are carried out by the PLC or the DCS according to the on/off signal of the externally input motor grid-connection vacuum breaker assisting junctions; and finally, the automatic adjusting and controlling function of a TRT excitation system before grid connection is finished by system programming. The invention realizes the functions of on-site unattended remote control grid-connection, improves the control technical content of the machine unit and reduces the operating cost for users.