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In this paper, direct torque control (DTC) of five-phase induction motor (FPIM) is implemented using three-level neutral point clamped (TL-NPC) inverter. One of the advantages of three-level inverter over two-level one for DTC operation is the low torque ripple. Also TL-NPC inverter through space vector modulation technique gives low $ dv/dt$ transition with better voltage waveform. By applying conventional...
This paper establishes the vector control of a five phase permanent magnet synchronous motor (PMSM). First, the mathematical model of a five-phase PMSM is described in a decoupled space with two orthogonal components. Next, space vector modulation (SVM) algorithm is presented to obtain high performance vector control drive. The vector control principle of a five-phase PMSM is developed to prove the...
The paper presents field oriented control of a five-phase induction motor drive system. The five-phase induction motor is supplied from a current controlled five-phase voltage source inverter and the inverter is supplied from a three-phase active front end converter. The novelty of the paper lies in the development of the five-phase drive with the active front converter. The front end converter has...
The design of the speed controller is important from the point of view of imparting desired transient and steady-state characteristic to the speed-controlled permanent magnet synchronous motor (PMSM) drive system. The design and analysis of a vector-controlled closed-loop permanent magnet synchronous motor (PMSM) drive is presented in this paper work. The effect of different factors like the time...
The aim of the paper is to present a diagnostic system for shaft misalignment detection. The diagnostic system is used in an adjustable speed sensorless induction motor (IM) drive with an inverter output filter. A nonlinear control algorithm and state observer were used in the motor control. Because the inverter output filter was installed in the drive, the control structure, as well as the estimation...
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