An Implementation of a Twelve Sectors Direct Torque Control Strategy of Induction Machine using DSPACE TMS 320F2812

Abstract

this paper presents an experimental implementation of a new direct torque control strategy of induction machine called twelve sectors direct torque control strategy (12_DTC) using DSPACE TMS 320F2812.The aim of this work is to give an experimental performance analysis of 12_DTC in term of torque, currents distortions and stator flux, to validate simulation results obtained in previous works.

Fault Tolerant Control Implementation for Inverter-Fed Induction Motors: A Real-Time Implementation

“…The location of the circular flux is divided into 12 sectors instead of 6, as shown in Figure 4, and the six voltage vectors will be used for the same sector. V0 and V7 are zero voltage vectors [32,34,35].…”

“…In our case, the torque is more interesting, so to take into account for low and high variations of the torque, a four level hysteresis comparator for torque and a two level hysteresis for flux are used, see Figure 5 [35].…”

“…Finally, the selection table for this technique is given in Table 3 [35]. Noting that: (2, -2) large torque variation; (1, -1) small torque variation; *Vi represents an undesired sequence, because it does not generate the desired small torque variations.…”