Multiterminal DC Wind Farm Collection Grid Internal Fault Analysis and Protection Design

Multiterminal DC Wind Farm Collection Grid Internal Fault Analysis and Protection Design

The multiterminal dc wind farm is a promising topology with a voltage-source inverter (VSI) connection at the onshore grid. Voltage-source converters (VSCs) are robust to ac-side fault conditions. However, they are vulnerable to dc faults on the dc side of the converter. This paper analyzes dc fault...

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Veröffentlicht in:IEEE transactions on power delivery 2010-10, Vol.25 (4), p.2308-2318
Hauptverfasser: Jin Yang, Fletcher, J E, O'Reilly, J
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Collection
Converters
Convertors
Design engineering
Direct current
Electric power plants
Electrical engineering. Electrical power engineering
Electrical machines
Electrical power engineering
Exact sciences and technology
Fault overcurrent
Faults
HVDC transmission
Inverters
Joints
multiterminal dc wind farm
Non classical power plants
Power conversion
Power networks and lines
Protection
Robustness
Testing. Reliability. Quality control
Topology
Transient analysis
Users connections and in door installation
Voltage
voltage-source converter (VSC)
Wind farms
Wind power generation
Wind power plants
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Beschreibung
Zusammenfassung:The multiterminal dc wind farm is a promising topology with a voltage-source inverter (VSI) connection at the onshore grid. Voltage-source converters (VSCs) are robust to ac-side fault conditions. However, they are vulnerable to dc faults on the dc side of the converter. This paper analyzes dc faults, their transients, and the resulting protection issues. Overcurrent faults are analyzed in detail and provide an insight into protection system design. The radial wind farm topology with star or string connection is considered. The outcomes may be applicable for VSCs in the multi-VSC dc wind farm collection grid and VSC-based high-voltage direct current (HVDC) offshore transmission systems.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2010.2044813