Hexagram-Converter-Based STATCOM for Voltage Support in Fixed-Speed Wind Turbine Generation Systems

This paper studies the effectiveness of reactive power compensation using a multilevel, hexagram-converter-based STATic COMpensator (STATCOM) with one-cycle control (OCC) for a wind farm with fixed-speed turbines, and the interaction with the power system network. Comparison is made with several com...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2011-04, Vol.58 (4), p.1120-1131
Main Authors: Slepchenkov, M N, Smedley, K Ma, Jun Wen
Format: Article
Language:English
Subjects:
Automatic voltage control
Control systems
Converters
displacement control
multilevel systems
power distribution
power electronics
Power system control
Power system simulation
Power systems
power transmission lines
Reactive power control
STATCOM
static VAR compensators (SVCs)
wind energy
Wind energy generation
Wind farms
Wind turbines
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Summary:This paper studies the effectiveness of reactive power compensation using a multilevel, hexagram-converter-based STATic COMpensator (STATCOM) with one-cycle control (OCC) for a wind farm with fixed-speed turbines, and the interaction with the power system network. Comparison is made with several common types of multilevel voltage source converters used for STATCOM applications. A new voltage control method based on OCC principles for hexagram-based STATCOMs is proposed and proven by a wind farm power system simulation showing the improvement of voltage variations caused by wind speed changes. The experimental results from tests of a small-scale hexagram converter prototype have verified the proposed converter and control method.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2010.2052536