Open AccessControl design and experimental verification of the brushless doubly‐fed machine for stand‐alone power generation applications
Author(s) -
Liu Yi,
Ai Wu,
Chen Bing,
Chen Ke,
Luo Guang
Publication year - 2016
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.815
H-Index - 97
eISSN - 1751-8679
pISSN - 1751-8660
DOI - 10.1049/iet-epa.2015.0107
Subject(s) - control theory (sociology) , total harmonic distortion , controller (irrigation) , voltage , amplitude , rotor (electric) , engineering , power (physics) , automatic frequency control , machine control , induction motor , vector control , computer science , control engineering , electrical engineering , physics , control (management) , artificial intelligence , agronomy , quantum mechanics , biology
In this study, a control scheme for the stand‐alone generation system based on brushless doubly‐fed machine (BDFM) is presented. The output voltage amplitude and frequency are kept constant under variable rotor speed and load by regulating the amplitude and frequency of the control winding (CW) current of BDFM appropriately. The control scheme utilises a CW current vector controller as the inner loop, and a power winding voltage amplitude controller and a frequency controller as the outer loop. The proposed control scheme has been implemented on a prototype BDFM designed for the variable‐speed stand‐alone ship shaft generation application. Moreover, the satisfactory dynamic performance and low total harmonic distortion of the output voltage in the proposed stand‐alone generation system is verified by experiments with two kinds of typical loads: three‐phase induction motor load and three‐phase RL inductive load.