Title :
Double-delta sourced winding for dual winding induction machine
Author :
Yongsoon Park ; Jeong-Mock Yoo ; Seung-Ki Sul
Author_Institution :
Dept. of Electr. & Comput. Eng., Seoul Nat. Univ., Seoul, South Korea
Abstract :
The harmonic distortions of motor currents can be mitigated by the application of the double-delta sourced winding (DDSW), which implements multi-level operation with two-level converters. In practice, dual winding induction machine (DWIM) has been considered for this application due to its inherent compatibility to DDSW. The modeling of DWIM is discussed for the vector control, and a decoupling control method of each winding to the other is proposed to improve the dynamic response of the current regulation. The torque control is also discussed for the case where one of the converters is dropped out. The effectiveness of the proposed methods is assessed with experimental results. It has been confirmed that the total harmonic distortion of the converter currents was decreased by 67.7 % when DDSW was applied to an 11 kW DWIM. In addition, the bandwidth of the current regulation could be increased by 113.7 % thanks to the proposed decoupling control method.
Keywords :
dynamic response; electric current; harmonic distortion; induction motors; machine vector control; machine windings; torque control; converter currents; current regulation; decoupling control method; double-delta sourced winding; dual winding induction machine; harmonic distortions; motor currents; power 11 kW; torque control; vector control; Current control; Induction machines; Machine vector control; Mathematical model; Rotors; Torque; Windings; double-delta; fault; induction machine; multi-level; vector control;
Conference_Titel :
Power Electronics and ECCE Asia (ICPE-ECCE Asia), 2015 9th International Conference on
Conference_Location :
Seoul
DOI :
10.1109/ICPE.2015.7167770
