Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 68, Issue 10, Pages 9196-9206Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2020.3028824
Keywords
Rotors; Windings; Stator windings; Induction machines; Voltage control; Inductance; Brushless doubly fed machine; current control; generators; machine vector control; wind power generation
Categories
Funding
- National Natural Science Foundation of China (NSFC) [61973073]
- Scientific Research Foundation of Graduate School of Southeast University [YBPY1878]
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This article suggests an improved vector control scheme for the dual-stator brushless doubly fed induction generator during standalone operation, utilizing the power winding magnetizing current as the control object to reduce demagnetization effects and simplify the outer voltage loop design. The main goal is to enhance system transient performance through the design of an improved standalone controller. A prototype of the generator employing the proposed scheme is used for validation in this study.
This article proposes an improved vector control scheme based on the magnetizing current for the dual-stator brushless doubly fed induction generator during the standalone operation. The conventional scheme of the standalone control chooses the control winding current as the control object for the inner current loop, suffering from the large variation of the output voltage caused by the large output impedance. The improved scheme of this article selects the power winding magnetizing current as the control object, which can reduce the demagnetizing influence of the load current. Meanwhile, the design of the outer voltage loop can be simplified because of the direct relationship between the output voltage and the power winding magnetizing current. The main aim of this article is to design an improved standalone controller to enhance the transient performance of the system. A prototype of the dual-stator brushless doubly fed induction generator, which employs the proposed scheme, is measured for validation.
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