24-Sector Direct Torque Control for Multilevel Drives

نویسندگان
Rahmati, Abdoreza ID 1
Farhangi, Shahrokh ID 2
Arasteh, Mohammad ID 3
Abrishamifar, Seyed Adib ID 4

1 Iran University of Science and Technology

2 Faculty of Eng., University of Tehran

3 Iran University of Science and Technology

4 Iran University of Science and Technology

doi
چکیده

This paper gives a detailed analysis of direct torque control (DTC) strategy in a five-level drive and proposes a 24-sector switching table. The overvoltage problem due to high dv/dt is reduced compared to the 12-sector DTC. Using all vectors leads to better flexibility and reduces speed oscillations. Simulation and experimental results for a 3kVA prototype confirm the proposed solutions. A TMS320F2812 is used to implement the above strategy.

کلیدواژه‌ها
Direct torque control, switching table, Multilevel Drive, Flying Capacitor Inverter, Stator Overvoltage