Asymmetrical Low-Voltage Ride Through of Brushless Doubly Fed Induction Generators for the Wind Power Generation

作者：Long Teng^*; Shao Shiyi; Abdi Ehsan; McMahon Richard A; Liu Shi

来源：IEEE Transactions on Energy Conversion, 2013, 28(3): 502-511.

DOI：10.1109/TEC.2013.2261818

• AC generators
• doubly fed induction generators (DFIG)
• fault ride-through
• wind energy

Compared with the Doubly fed induction generators (DFIG), the brushless doubly fed induction generator (BDFIG) has a commercial potential for wind power generation due to its lower cost and higher reliability. In the most recent grid codes, wind generators are required to be capable of riding through low voltage faults. As a result of the negative sequence, induction generators response differently in asymmetrical voltage dips compared with the symmetrical dip. This paper gave a full behavior analysis of the BDFIG under different types of the asymmetrical fault and proposed a novel control strategy for the BDFIG to ride through asymmetrical low voltage dips without any extra hardware such as crowbars. The proposed control strategies are experimentally verified by a 250-kW BDFIG.

• 出版日期2013-9
• 单位华北电力大学（保定）; 华北电力大学