Open AccessGeneralized model for investigating the attributes of a six‐phase self‐excited induction generator over a three‐phase variant
Author(s) -
Khan Mohd Faisal,
Khan Mohd Rizwan
Publication year - 2018
Publication title -
international transactions on electrical energy systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 42
ISSN - 2050-7038
DOI - 10.1002/etep.2600
Subject(s) - induction generator , control theory (sociology) , stator , stationary reference frame , three phase , induction motor , phase (matter) , generator (circuit theory) , voltage , squirrel cage rotor , shunt (medical) , doubly fed electric machine , computer science , engineering , ac power , power (physics) , physics , electrical engineering , medicine , cardiology , control (management) , quantum mechanics , artificial intelligence
Summary Six‐phase self‐excited induction generator (SEIG) comparative to an equivalent 3‐phase counterpart is investigated in this study. A novel unified, stationary reference frame, dual d‐q model is developed to simulate both SEIG variants. Operating conditions are arranged as short shunt compensation connection of SEIGs with no‐load, static RL, and dynamic loading. Results demonstrate that 6‐phase SEIG supplies full‐load voltages with 21% to 45% lower THDs and incurs 5.5% to 9.8% lesser full‐load copper losses across different loads than the 3‐phase SEIG. This also reflects in the efficiencies of 2 variants, as the 6‐phase SEIG maintains consistently better efficiency. Six‐phase SEIG also gives stable performance with unbalanced loading. Experimental validation of the results is achieved on an open‐end stator winding squirrel‐cage induction machine operated as 3‐ and 6‐phase SEIG. Findings of this study verify the theoretically perceived benefits of high‐phase SEIGs in an orderly manner.