Author/Authors :
Mahdi S.، Mousavi Department of Electrical Engineering - Shahid Rajaee Teacher Training University, Tehran, Iran , ،Davari S. Alireza Department of Electrical Engineering - Shahid Rajaee Teacher Training University, Tehran, Iran , Vahab، Nekoukar Department of Electrical Engineering - Shahid Rajaee Teacher Training University, Tehran, Iran , Margarita ، Norambuena Department of Electrical Engineering - Universidad Tecnica Federico Santa Maria, Valparaiso, Chile , Jose، Rodriguez Faculty of Engineering - Universidad Andres Bello, Santiago, Chile , Fengxiang، Wang Quanzhou Institute of Equipment - Manufacturing Chinese Academy of Sciences, Quanzhou, China
كليدواژه :
Zero sequence current , T OEWIM , Open-end winding , erms—Cascaded predictive control
چكيده لاتين :
Abstract—A four-stage cascaded predictive control method is
proposed in this paper to suppress the zero-sequence current
(ZSC) of the open-end winding induction motor (OEWIM). ZSC
is generated when a single DC source feeds two inverters of an
OEWIM. Circulation of ZSC in the motor windings increases
the torque ripple and deteriorates the stator current waveform.
The proposed method eliminates the ZSC by cascaded control of
two inverters. By using voltage vectors of one inverter, the first
and second stages control the torque and stator flux, respectively.
Voltage vectors of the other inverter are used in third and fourth
stages to eliminate ZSC beside the controlling stator flux and
torque. In comparison to the conventional predictive control of
OEWIM, this strategy won’t impose an excessive burden on
the control system. Moreover, the weighting factor of the stator
flux is removed from the cost function. A comparison is made
between the proposed strategy and the conventional method
in simulations. Results show the superior performance of the
proposed cascaded predictive control.
