Equivalent circuit of ac-dc link during unbalanced fault and its analysis
Journal Article
·
· Electr. Eng. Jpn. (Engl. Transl.); (United States)
OSTI ID:5945328
When an unbalanced fault occurs in the ac line in the ac-dc link system, the ac voltage and current of the converters become unbalanced. If the unbalance of the converter ac voltage is large, the dc current is interrupted or does not flow. If the unbalance of the commutation voltages is small, the converter may continue to operate without commutation failure. For this analysis, the conventional method is no longer applicable. The author developed the method of system analysis with the unbalanced fault in the ac-dc link by means of the symmetrical coordinate method.
- OSTI ID:
- 5945328
- Journal Information:
- Electr. Eng. Jpn. (Engl. Transl.); (United States), Journal Name: Electr. Eng. Jpn. (Engl. Transl.); (United States) Vol. 86; ISSN EENJA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
200301 -- Power Transmission & Distribution-- AC Systems
EHV & UHV-- (-1989)
200302* -- Power Transmission & Distribution-- DC Systems-- (1989-)
24 POWER TRANSMISSION AND DISTRIBUTION
AC SYSTEMS
CALCULATION METHODS
DC SYSTEMS
DC TO DC CONVERTERS
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
EQUIPMENT
INTERCONNECTED POWER SYSTEMS
POWER SYSTEMS
SYSTEMS ANALYSIS
EHV & UHV-- (-1989)
200302* -- Power Transmission & Distribution-- DC Systems-- (1989-)
24 POWER TRANSMISSION AND DISTRIBUTION
AC SYSTEMS
CALCULATION METHODS
DC SYSTEMS
DC TO DC CONVERTERS
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
EQUIPMENT
INTERCONNECTED POWER SYSTEMS
POWER SYSTEMS
SYSTEMS ANALYSIS