Control method of comprehensive compensation system of negative sequence and harmonic in high-speed electric railway

The invention discloses a control method of comprehensive compensation systems of negative sequence and harmonics in high-speed electric railways. In the control method, current of two feeding sections is subject to comprehensive detection of negative sequence and harmonics so as to generate compreh...

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Main Authors SUN JUAN, WU CHUANPING, FANG LU, WANG WEN, DAI YAPEI, LUO AN, XU XIANYONG, MA FUJUN
Format Patent
LanguageChinese
English
Published 27.01.2010
Subjects
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
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Abstract The invention discloses a control method of comprehensive compensation systems of negative sequence and harmonics in high-speed electric railways. In the control method, current of two feeding sections is subject to comprehensive detection of negative sequence and harmonics so as to generate comprehensive compensation current reference values. Active current of RPC to be transferred is adjusted by calculating a coefficient k of active current of modified first harmonics according to negative sequence compensation indexes. Corresponding control strategies are taken according to service conditions of up electric locomotives and down electric locomotives in high-speed railways: controlling current of RPC converters connected to one feeding section side with running electric locomotives; and controlling DC voltage of RPC converters connected to the other feeding section side without running electric locomotives. A Hysteresis comparison control method is employed for current loops to cause output current of conver
AbstractList The invention discloses a control method of comprehensive compensation systems of negative sequence and harmonics in high-speed electric railways. In the control method, current of two feeding sections is subject to comprehensive detection of negative sequence and harmonics so as to generate comprehensive compensation current reference values. Active current of RPC to be transferred is adjusted by calculating a coefficient k of active current of modified first harmonics according to negative sequence compensation indexes. Corresponding control strategies are taken according to service conditions of up electric locomotives and down electric locomotives in high-speed railways: controlling current of RPC converters connected to one feeding section side with running electric locomotives; and controlling DC voltage of RPC converters connected to the other feeding section side without running electric locomotives. A Hysteresis comparison control method is employed for current loops to cause output current of conver
Author MA FUJUN
LUO AN
DAI YAPEI
WU CHUANPING
XU XIANYONG
FANG LU
WANG WEN
SUN JUAN
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– fullname: XU XIANYONG
– fullname: MA FUJUN
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Snippet The invention discloses a control method of comprehensive compensation systems of negative sequence and harmonics in high-speed electric railways. In the...
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SubjectTerms CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
SYSTEMS FOR STORING ELECTRIC ENERGY
Title Control method of comprehensive compensation system of negative sequence and harmonic in high-speed electric railway
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