A novel DTC-SVM approach for two parallel-connected induction motors fed by matrix converter

Authors : Mahdi JAFARI, Karim ABBASZADEH, Mustafa MOHAMADIAN

Pages : 1599-1611

View : 22 | Download : 9

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :AC machines fed by a single inverter are widely used in industries such as railroad electrification systems where speed synchronization does not have to be exact. The low cost and volume and the small number of power electronic components are attractive aspects of single-inverter multi-motor systems. This paper proposes a novel approach to controlling the speed and torque of two induction motors connected in parallel and fed by a matrix converter under unbalanced load condition. This single-inverter dual-motor insert ignore into journalissuearticles values(SIDM); drive uses average and differential values of speed and torque together with stator and rotor flux parameters based on the flux dead-beat scheme. An advantage of the proposed approach, compared with the conventional direct torque control insert ignore into journalissuearticles values(DTC); method, is that it eliminates the lookup table and lowers the torque and current ripple through the use of the PI controller instead of hysteresis blocks. Combining DTC and space vector modulation insert ignore into journalissuearticles values(SVM); with a matrix converter insert ignore into journalissuearticles values(MC); and achieving the unit input power factor are other advantages of the present study. The main purpose of this study was to propose a new drive system with an MC for two parallel-connected induction motors using the DTC method and SVM consisting of a flux dead-beat scheme.
Keywords : Matrix converter, single inverter dual motor drive, DTC SVM, dead beat scheme