Minimization of torque ripple in switched reluctance motor drives using direct instantaneous torque control

Abstract

Abstract.Torque ripple is an inherent characteristic of switched reluctance motor drives due to its double salient geometry and it is a serious drawback in applications that require smooth torque and high dynamic performances. This paper presents some contributions to the minimization of torque ripple in SRM using direct instantaneous torque control (DITC). Direct torque controller is simulated using Matlab/Simulink and then implemented in a DSPACE ACE kit 1006 CLP that includes a processor board with an AMD Opteron TM running at 2.6 GHz. Finally, experimental results are shown and they are compared with those obtained using conventional angle control.

Finite element analysis of switched reluctance motor with rotor position based control

“…To achieve good performances the SRM drive requires an accurate shaft position feedback signal, implying the need for a high quality encoder [1], [21] (as it can be seen in Fig. 1) or, another way, a sophisticated sensor-less controller [1], [2].…”

“…Therefore they need costly very high performance processors. Due to these drawbacks most of the commercial controllers of SRM drives use sensors [1], [21].…”

Particle Swarm Optimization tuned BELBIC controller for 8/6 SRM operation

“…The rotor has simple laminated salient pole structure without winding. It reduces the copper loss I rotor winding [10] . The stampings are made perfectly of silicon steel especially in higher efficiency applications.…”

Minimization of torque ripple in switched reluctance motor drives using an enhanced direct instantaneous torque control

“…10, where a finite-state Mealy machine performs the logic combination of signals, references and states to generate the proper control signals to the power converter switches. The code implemented in the Mealy machine differs from DIT controller [10], as a consequence of the deactivation of the outgoing phase when the incoming phase current is higher than the outgoing phase current. The structure of the finite-state machine is represented by a flowchart as is depicted in Fig.…”