CONTROL METHOD AND APPARATUS FOR HIGH-VOLTAGE, DIRECT CURRENT FIRST COMMUTATION FAILURE IN ALTERNATING-CURRENT FAULT

CONTROL METHOD AND APPARATUS FOR HIGH-VOLTAGE, DIRECT CURRENT FIRST COMMUTATION FAILURE IN ALTERNATING-CURRENT FAULT

A method, an apparatus and a device for suppressing a first HVDC commutation failure under an AC system fault are provided. The method includes: obtaining a three-phase voltage of a converter bus, and calculating a zero-sequence component amplitude and an αβ component amplitude; calculating a first...

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Hauptverfasser: WEI, Wei, ZHENG, Ruina, WANG, Juanjuan, FU, Chuang, WEN, Zhaoxin, LI, Huan
Format: Patent
Sprache:eng
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APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
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creator WEI, Wei
ZHENG, Ruina
WANG, Juanjuan
FU, Chuang
WEN, Zhaoxin
LI, Huan
description A method, an apparatus and a device for suppressing a first HVDC commutation failure under an AC system fault are provided. The method includes: obtaining a three-phase voltage of a converter bus, and calculating a zero-sequence component amplitude and an αβ component amplitude; calculating a first trigger-angle command for a single-phase fault and a second trigger-angle command for a three-phase fault selecting a smaller one of the first trigger angle command and the second trigger angle command as a trigger-angle command for an extinction-angle controller; and adjusting a trigger angle of the HVDC transmission system by using the trigger-angle command as an upper limit value for an output of the extinction-angle controller of the HVDC transmission system.
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subjects APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
title CONTROL METHOD AND APPARATUS FOR HIGH-VOLTAGE, DIRECT CURRENT FIRST COMMUTATION FAILURE IN ALTERNATING-CURRENT FAULT
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